React Jobs in Belfast

My client, a global leader in financial market infrastructure and trading technology, is hiring a Senior Software Engineer (Back End) to join an existing engineering team based in Belfast. This is an exciting opportunity to work on business-critical software solutions supporting global trading platforms and financial markets technology within a highly collaborative Agile environment.

* Competitive salary package
* Hybrid working model
* Strong pension and benefits package
* Flexible working
* Clear career progression opportunities

You will be part of a highly skilled global engineering function focused on delivering scalable, cloud-native applications that power real-time financial trading and market infrastructure systems. My client is passionate about engineering excellence, innovation, and building resilient distributed systems using modern technologies.

As a Senior Software Engineer, you will design, develop, and maintain distributed backend systems using modern .NET technologies including C# and .NET Core. You will collaborate closely with Solution Architects and Principal Engineers to build scalable APIs, cloud-native applications, and event-driven services deployed across AWS and Azure environments. The role will involve working across the full software development lifecycle, contributing to technical design, automated testing, deployment, and production support while mentoring other engineers within the team.

The Person

* Strong commercial experience with C# and modern .NET technologies (.NET Framework / .NET Core)
* Experience designing and developing distributed, cloud-native systems
* Strong API development experience including REST and GraphQL
* Experience working with relational databases including MSSQL and MySQL
* Hands-on experience with AWS and/or Azure cloud platforms
* Experience building scalable event-driven or microservices architectures
* Strong understanding of the full software development lifecycle
* Experience developing automated testing solutions
* Strong problem-solving and communication skills
* Experience working within Agile development environments

Desirable

* Experience with WPF development
* Financial services or trading platform exposure
* Knowledge of FIX protocol and messaging
* Experience with serverless architecture and microservices
* Exposure to Java, JavaScript, or React
* Understanding of TDD / BDD methodologies

For further information on this job, or any other Software Engineering jobs in Belfast or Northern Ireland, apply via the link or contact Michael Peniata for a confidential chat today.

VANRATH acts as an agency and employment business for permanent recruitment and the supply of temporary workers. Successful applicants may be required to satisfactorily complete pre-employment checks (such as references, criminal record checks, right to work checks) in line with the client or VANRATH’s policy.

Senior Software Engineer - .NET/C# - Pharma

Job Description My client, a specialist organisation operating within the clinical research and precision medicine sector, is hiring a Senior Software Engineer to join an established engineering team. This is a newly created role focused on developing and enhancing a cloud-based SaaS platform that supports complex clinical trial processes and regulatory intelligence. Competitive salary (DOE) Hybrid working model (3 days in office after onboarding) Flexible working options Generous annual leave with incremental increases Pension contributions Training and professional development budget Clear career progression opportunities You will be part of a highly collaborative team delivering innovative, cloud-based solutions that support global clinical research initiatives. The organisation is focused on leveraging modern technologies to improve how clinical trials are designed, managed, and executed. As a Senior Software Engineer, you will design, develop, and maintain scalable applications using modern frameworks and cloud technologies. You will play a key role in shaping technical direction, mentoring team members, and working closely with both internal and external stakeholders. The Role Develop and maintain applications using .NET (C#), .NET Core, and cloud technologies Design and optimise SQL databases for performance and scalability Build and manage cloud-based solutions (app services, serverless functions, storage, DevOps pipelines) Collaborate with cross-functional teams including product, design, and stakeholders Contribute to system architecture and technical design decisions Mentor junior developers and provide technical leadership Participate in code reviews and promote best practices Troubleshoot, debug, and enhance application performance Stay current with emerging technologies and industry trends The Person 3+ years' experience in a senior software development role 5+ years' commercial software development experience Degree in Computer Science or related discipline Strong experience with .NET (C#, .NET Core) and SQL databases Experience with cloud platforms (e.g. Azure or similar) Front-end experience with HTML, CSS, JavaScript, and modern frameworks (e.g. Angular or React) Solid understanding of microservices architecture and API development Strong problem-solving and debugging skills Experience mentoring or supporting junior developers Desirable Experience with DevSecOps and CI/CD pipelines Strong communication and collaboration skills Interest in AI or emerging technologies Exposure to additional languages/frameworks For further information on this opportunity, or other Software Engineering roles, please apply via the link or contact us for a confidential discussion.

Job Summary

I’m recruiting for a Lead UI Engineer to join a fast-growing, remote-first digital consultancy. You’ll lead front-end delivery across client projects and internal products, shaping modern, performant, and accessible web interfaces. This role combines hands-on React/ engineering with mentoring, architectural guidance, and cross-functional collaboration.

I’ve successfully placed 10 engineers in this company already, all with great feedback on team culture, career growth, and project variety. This is an excellent opportunity to make a tangible impact on both products and people.

Key Responsibilities

Lead front-end engineering, building responsive, mobile-first UI with HTML, CSS, SASS, JavaScript (ES6+) and TypeScript
Develop robust React and applications with SSR, reusable component libraries, and scalable architecture
Collaborate closely with UX, visual designers, and back-end teams to deliver cohesive, high-quality interfaces
Mentor and support front-end engineers, running code reviews and guiding best practices
Communicate design and technical decisions to technical and non-technical stakeholders, including clients
Contribute to project scoping, estimation, and delivery planning
Debug, optimise, and maintain performance, accessibility, and test coverage of web applications

What We’re Looking For

Essential:

Degree in Computer Science or equivalent industry experience
Strong experience with HTML, CSS, JavaScript (ES6+), TypeScript, React,
Proven track record leading front-end delivery or mentoring engineers
Strong understanding of responsive, adaptive, mobile-first design, UX principles, and reusable component libraries
Experience with Figma/Adobe XD and collaborating with designers
Excellent analytical, communication, and interpersonal skills

Desirable:

Familiarity with Webpack, Babel, accessibility standards, SEO for front-end, and design systems
Experience working in cross-functional product teams

Benefits

Competitive salary based on experience
Share options under HMRC-approved EMI scheme
Remote-first culture with access to Belfast/London co-working hubs
25 days annual leave + bank holidays
Pension matched up to 8%
Bupa Private Healthcare & Health Assessments
Specsavers Corporate Eye Care
Cycle to Work Scheme
Training and professional development budget
High-spec equipment and home-office budget
Supportive, innovative team culture

*You must be based in Northern Ireland*

Skills:
Javascript Typescript React

I’m working with a fast-growing, remote-first digital consultancy to hire a Senior UI Engineer. You’ll design and build high-quality, performant, and accessible web interfaces across client projects and internal products. Working closely with UX designers, visual designers, and back-end engineers, you’ll ensure polished, cohesive user experiences.

This is a fantastic opportunity for someone who enjoys mentoring others, shaping front-end architecture, and taking ownership of complex UI challenges. I’ve placed 10 engineers into this company already, all with excellent feedback on culture, team collaboration, and career development.

Key Responsibilities

Build responsive, mobile-first interfaces using HTML, CSS, SASS, JavaScript (ES6+) and TypeScript
Develop and maintain production-grade React and applications, including SSR and reusable component libraries
Ensure consistent design implementation and brand adherence
Optimise performance, scalability, and accessibility of web pages
Write clean, testable code and maintain front-end test suites (Jest)
Translate UX designs into production-ready UI using tools such as Figma or Adobe XD
Collaborate with back-end teams to integrate APIs (REST/GraphQL)
Communicate technical decisions to both technical and non-technical stakeholders

What We’re Looking For

Essential:

Degree in Computer Science or equivalent experience
Strong proficiency in HTML, CSS, JavaScript (ES6+), TypeScript, React,
Experience building reusable component libraries and SSR applications
Understanding of responsive, adaptive, and mobile-first design
Familiarity with Figma or Adobe XD
Strong problem-solving and communication skills

Desirable:

Experience with Webpack, Babel, accessibility standards, design systems, and SEO for front-end
Experience working in cross-functional product teams

Benefits

Competitive salary based on experience
Share options under HMRC-approved EMI scheme
Pension matched up to 8%
Bupa Private Healthcare & Health Assessments
Specsavers Corporate Eye Care
25 days annual leave + bank holidays
Cycle to Work Scheme
Training and professional development budget
High-spec equipment and home-office budget
Remote-first culture with optional Belfast/London co-working spaces

*You must be based in Northern Ireland*

Skills:
Javascript Typescript React

Staff Full Stack Engineer ( New )

Staff Frontend / Full Stack Engineer

Remote / Hybrid UK ( Must have access to the Belfast office )
Permanent

The Opportunity

OCHO is partnering with a product-led technology organisation seeking a Staff-level Frontend / Full Stack Engineer to help shape the future of its product platform and frontend architecture.

This is an opportunity to join a highly technical engineering environment where frontend engineering is treated as a strategic capability rather than a support function. The business is building complex, high-scale product experiences and requires a senior technical leader who can drive architecture, improve engineering standards, and influence product direction.

You will operate as a senior individual contributor and technical force multiplier, helping scale frontend systems, component architecture, developer experience, and engineering quality across multiple teams.

The Role

As a Staff Engineer, you will lead the design and evolution of scalable frontend and full stack systems, with particular emphasis on modern React / architecture, design systems, developer tooling, and platform scalability.

You will work cross-functionally with Product, Design, and Engineering leadership to influence architectural direction and ensure high-quality delivery across multiple product streams.

What You’ll Be Doing

Acting as a Staff-level technical leader across multiple engineering teams
Driving architecture and best practice across React / / TypeScript frontend platforms
Designing and evolving scalable component libraries / design systems
Improving developer experience, tooling, and frontend platform standards
Contributing to backend/full stack architecture where appropriate using Node.js
Leading technical design discussions and influencing long-term platform direction
Driving performance, accessibility, maintainability, and scalability initiatives
Partnering with Product and Design to shape intuitive, scalable product experiences
Mentoring engineers and raising technical standards across the organisation
Supporting adoption of AI-assisted development workflows and modern engineering tooling

What We’re Looking For

Essential Experience

Proven experience operating at Staff / Principal / Lead Engineer level
Deep expertise in React / / TypeScript / Modern Frontend Architecture
Strong experience designing scalable component libraries / design systems
Demonstrated experience influencing architecture across multiple teams/products
Strong understanding of frontend performance, accessibility, and developer experience
Experience mentoring engineers and driving engineering standards
Strong communication and stakeholder management capability

Nice to Have

Full stack/backend exposure with Node.js / APIs / Databases
Experience with AI/LLM integration or AI-assisted engineering workflows
Experience with monorepos / Turborepo / Storybook / Modern Tooling
AWS / Cloud / DevOps familiarity
Product-led / SaaS / Platform engineering experience

Tech Environment

React
TypeScript
Node.js
Storybook
Tailwind / Modern CSS
PostgreSQL
AWS / Cloud Infrastructure
CI/CD / Modern DevOps Tooling
AI / LLM Tooling

Why Join?

Highly technical product-led engineering culture
Frontend architecture treated as strategic, not support
Opportunity to influence platform direction at scale
Modern engineering environment with strong technical peers
AI-forward / innovation-focused culture
Significant autonomy and technical ownership

Interested?

For a confidential discussion, reach out to Ryan Quinn on LinkedIn. There are two roles live with this client. Both at Staff Level. Happy to walk you through the client brief if you reach out to me via LinkedIn.

Skills:
React AWS TypeScript

Benefits:
Bonus

Senior Software Engineer

ARC's purpose is to expedite access to precision medicine clinical trials for patients globally. We fulfil our purpose through our dedicated team of experts with unparalleled domain knowledge, and the important relationships we have developed with our global clients. We are a Belfast-based Clinical Research Organisation that specialises in delivering compliance excellence for companies in the precision medicine sector. We support many of the world's leading pharmaceutical R&D companies in implementing unapproved diagnostics in their clinical development programmes for patient selection or stratification, working as a strategic and integrated expert partner, taking full sponsor ownership of the IVD study being conducted in parallel with our clients' IND/IMP trial. ARC's team of experts cover IVD regulatory compliance, study design and approvals, quality assurance including vendor due diligence and management along with a team of clinical research experts who manage the IVD study, ensuring it is conducted in compliance with local and global GCP, and that the biomarker data is robust and reliable. To further support our growing client base and to expedite patient access to life-saving experimental medicines, ARC has developed and launched our SaaS platform, ARC360. ARC360 is transforming how organisations access regulatory intelligence and tailor study-specific information for using in vitro diagnostics to select and manage patients in IND trials. Powered by cutting-edge technologies and supported by a team of regulatory, quality, and clinical operations experts, ARC360 is designed to accelerate the initiation of complex clinical trials. Job Purpose As a Senior Software Engineer, you will play a key role in designing, developing and maintaining high performance cloud-based applications. You'll work with cutting-edge Azure technologies to support our mission in precision medicine research. You will be a vital link between the software team and Internal & external stakeholders. Key Responsibilities Develop & maintain applications using .NET (C#), .NET Core, and Azure technologies. Collaborate with product managers, designers, and developers to create high-quality software solutions. Mentorjunior members of the development team, providing expert support whenrequired. Contribute to design decisions forup-and-comingprojects Become a vital link between the software team and key internal and external stakeholders. Design and manage MS SQL Server databases, optimizing performance and scalability. Implement Azure cloud services (App Services, Functions, Storage, DevOps). Participate in code reviews and contribute to software development best practices. Troubleshoot and debug applications to ensure reliability and efficiency. Stay up to date with emerging technologies and industry trends. Essential Skills & Experience Minimum of 3 years experience within a Senior Software Developer role Minimum of 5 years post graduate experience within Software Development Degree in computer science of a related discipline Strong experience in .NET (C#, .NET Core) and SQL Server. Proficiency in Azure cloud services (Azure App Services, Functions, Storage). Experience with front-end technologies (HTML, CSS, JavaScript, Angular, React). Understanding of microservices architecture & API development. Strong problem-solving and debugging skills. Previous experience in mentoring junior members of staff. Desirable Skills Experience with Azure DevSecOps & CI/CD pipelines. Strong communication and teamwork skills. A keen interest in AI Some experience with PHP and symphony, Why Join ARC Regulatory? Competitive Salary 30 days of annual leave, increasing to 35 days over time Employer pension contributions Employee Benefits Program (after probation) Hybrid working model (3 days after the first 12 weeks of employment) Training budget for professional development Office located in Catalyst Belfast a hub of innovation We are an equal opportunity employer; applications are welcome from all and appointment will be made on the basis of merit. Skills: .NET SQL AZURE

Are you looking for a role where you can take real ownership of features and see your work directly impact users?

Do you enjoy working across the full stack in a modern cloud environment, building products that genuinely help people develop and progress?

We’re working with an ambitious training and development company that is reshaping how organisations deliver learning. As their platform continues to scale, they’re looking to hire an Intermediate Software Engineer with strong Node.js, React, and AWS experience to join their growing engineering team.

The Opportunity

You’ll join a collaborative product-focused team, contributing to a modern learning platform used by organisations across the UK and internationally. This is a hands-on engineering role where you’ll work across both backend and frontend, delivering high-quality features in a scalable AWS environment.

You’ll have the autonomy to own work end-to-end, while continuing to develop your technical depth and architectural understanding.

Key Responsibilities

Develop and maintain backend services using Node.js
Build clean, responsive user interfaces using React
Deploy, monitor, and optimise applications within AWS
Contribute to technical design discussions and architectural decisions
Write well-structured, testable, and maintainable code
Collaborate closely with Product and Design to deliver user-focused features
Continuously improve performance, reliability, and security across the platform

Tech Environment

Backend: Node.js (Express or similar)
Frontend: React (modern JavaScript/TypeScript)
Cloud: AWS (e.g., Lambda, EC2, S3, RDS)
CI/CD & Version Control: Git-based workflows and automated pipelines

What We’re Looking For

2-4 years’ commercial software development experience
Strong hands-on experience with Node.js and API development
Solid frontend experience with React
Exposure to cloud infrastructure, ideally AWS
Experience working with relational or NoSQL databases
An understanding of testing principles and clean code practices
A collaborative approach and clear communication skills

Desirable Experience

Experience in SaaS, platform-based, or EdTech environments
Exposure to serverless architectures
Experience with Docker or containerisation
Awareness of scalability and performance optimisation techniques

Why Apply?

Join a purpose-led organisation focused on professional growth and learning
Work in a supportive, forward-thinking engineering team
Gain exposure to modern cloud architecture at scale
Clear progression opportunities as the business grows
Flexible working environment

If you have any further questions on the role, please feel free to reach out to Brendan McCrory directly.

Benefits:
Work From Home

Lead Front End Engineer

Are you the kind of engineer who doesn’t just build frontends, but defines how they should be built at scale?

My client is looking for a Lead Front End Engineer to take ownership of a modern, high-impact web platform, shaping both the technical direction and engineering standards across the frontend function.

This is a hands-on leadership role where you’ll combine deep React expertise with architectural thinking and team mentorship, working closely with product, design, and backend teams in a cloud-native environment.

The Role

You will take the lead on frontend architecture and delivery, ensuring the platform is scalable, performant, and maintainable as the product continues to grow.

You’ll be responsible for setting direction, making key technical decisions, and raising the bar across the team.

Key Responsibilities

Own the frontend architecture across a React-based platform
Lead the design and development of high-quality, scalable UI systems
Define and enforce engineering standards, best practices, and patterns
Collaborate with backend teams to integrate with AWS-based services and APIs
Drive performance optimisation, accessibility, and user experience improvements
Mentor and support engineers, providing technical leadership and guidance
Work closely with product and design to translate requirements into robust technical solutions
Contribute to CI/CD pipelines and deployment strategies in a cloud environment

Required Experience

Strong experience with React and modern JavaScript/TypeScript ecosystems
Proven experience in a Lead or Senior Front End role with ownership of systems
Experience designing and building scalable frontend architectures
Solid understanding of API integration and distributed systems
Experience working with AWS (e.g. API Gateway, Lambda, S3, CloudFront)
Strong knowledge of performance optimisation, state management, and testing strategies
Experience mentoring engineers and influencing technical direction

Desirable

Experience with or server-side rendering
Exposure to micro-frontends or design systems
Knowledge of CI/CD pipelines and DevOps practices
Experience working in high-growth or product-led environments

Why Join?

Opportunity to own and shape the frontend strategy
Work on a modern, cloud-native stack
High level of autonomy and technical influence
Collaborative, engineering-driven culture
Real impact on a scaling product and user experience

If you have any further questions on the role, please feel free to reach out to Brendan McCrory directly.

Benefits:
Work From Home

Senior React Engineer

Senior React Engineer (Cloud-Native Web Applications)

Do you enjoy bringing complex product ideas to life through beautifully engineered front-end systems?
Are you passionate about delivering high-performance applications that leverage cloud-native architectures end to end?

My client is seeking a Senior React Engineer to develop modern, scalable front-end applications tightly integrated with their cloud platform. You will work on highly interactive experiences where performance, reliability, and clean architecture are essential.

Key Responsibilities

Build and maintain large-scale React applications using modern tooling.
Create reusable UI components and optimise rendering performance.
Integrate front-end applications with cloud-native backends and APIs.
Contribute to architectural decision-making for distributed, cloud-first solutions.
Implement CI/CD best practices and automated testing pipelines.
Work closely with Product, UX, and Cloud Engineering teams.

Required Experience

5+ years of professional front-end development experience.
Deep expertise in React, Hooks, TypeScript, and modern state management.
Essential experience deploying and integrating applications on AWS, GCP, or Azure.
Strong understanding of cloud-native patterns (serverless, microservices, managed services).
Hands-on experience with CI/CD, Docker, and modern build systems.

Desirable

Experience with performance profiling and frontend observability tools.
Familiarity with GraphQL and real-time data (WebSockets, SSE).

If you have any further questions on the role, please feel free to reach out to Brendan McCrory directly.

Benefits:
Work From Home

Principal React Engineer

Principal Front-End Engineer (React)

Experience level: 10+ years

Have you spent years building front-end systems that scale - and now want a role where your decisions genuinely shape how products and teams operate?

My client is looking for a Principal React Engineer to take ownership of front-end architecture, set engineering standards, and act as a technical authority across multiple product teams. This role is for someone who still enjoys writing code, but whose real impact comes from designing systems, mentoring engineers, and influencing technical direction.

What you’ll be responsible for

Owning and evolving the front-end architecture across complex React applications
Defining standards for performance, accessibility, testing, and maintainability
Leading technical decision-making and architectural reviews
Partnering closely with product, design, and backend leadership
Mentoring senior and mid-level engineers and raising the bar across teams
Driving best practice in modern React (hooks, composition, state management)
Evaluating and introducing new technologies where they add real value

Tech environment

React (modern patterns, hooks, context, performance optimisation)
TypeScript
Component-driven development and design systems
State management (Redux, Zustand, React Query, etc.)
Testing frameworks (Jest, React Testing Library, Cypress)
CI/CD pipelines and modern build tooling
Cloud-hosted platforms and APIs

What we’re looking for

10+ years’ experience in software engineering, with deep front-end expertise
Extensive experience building large-scale React applications in production
Proven ownership of front-end architecture in complex systems
Strong understanding of performance, accessibility, and browser fundamentals
Experience influencing technical direction across multiple teams
Comfortable balancing hands-on development with high-level architectural work
Clear communicator who can explain complex technical decisions simply

Nice to have (but not essential)

Experience designing and maintaining shared design systems
Exposure to backend or full-stack architectures
Experience working in regulated or high-scale environments
Previous experience in a Principal, Staff, or Lead role

Why this role?

Genuine influence over technical direction and standards
Complex, real-world engineering challenges
A senior engineering culture that values thoughtful decision-making
The chance to shape both systems and people

If you have any further questions on the role, please feel free to reach out to Brendan McCrory directly.

Benefits:
Work From Home

Job Title
Senior .NET Developer

Overview
Ocho is partnering with a high-growth, Belfast-based technology organisation operating at the forefront of clinical research and precision medicine.

This is an opportunity to join a team building a modern SaaS platform that is transforming how global organisations deliver complex clinical trials. You’ll work on cloud-native applications that directly support life-changing research, in an environment that combines strong technical leadership with real-world impact.

You’ll play a key role in designing, building and scaling high-performance applications, while also acting as a senior voice within the engineering team.

Key Responsibilities

Design, build and maintain scalable applications using .NET and Azure
Contribute to architecture and technical design decisions across new and existing systems
Work closely with product, design and engineering teams to deliver high-quality solutions
Develop and optimise SQL Server databases for performance and scalability
Build and integrate cloud-native services using Azure
Mentor junior engineers and support overall team capability
Participate in code reviews and drive best practices across the team
Troubleshoot and resolve issues to ensure system reliability and performance

Person We Are Looking For

Strong commercial experience with .NET (C#, .NET Core)
Experience building cloud-based applications using Azure
Strong SQL Server experience including performance optimisation
Experience working with APIs and microservices architectures
Exposure to modern front-end technologies (Angular, React, JavaScript)
Proven ability to mentor and support other engineers
Strong problem-solving skills and attention to detail
Comfortable working in a collaborative, Agile environment

Desirable Experience

Experience with CI/CD pipelines and DevOps practices
Exposure to Azure DevOps or similar tooling
Interest in AI or emerging technologies
Experience across additional languages or frameworks

Role Details

Competitive salary and benefits package
Hybrid working - 3 days in the Belfast office (after initial onboarding)
Modern office based in Catalyst Belfast
Strong training and development support
Opportunity to work on meaningful, real-world technology with global impact

Apply here or reach out to Aaron Somers at Ocho for more information via LinkedIn.

Skills:
software development software engineering

Benefits:
Work From Home bonus pension healthcare options

UI Engineer

About our client

Our client is a global leader in financial technology, building secure, scalable, and high-performing systems that power critical business operations worldwide. With a strong focus on innovation and collaboration, they are now seeking a UI Engineer to join their Corporate Functions team in Belfast. This role offers the opportunity to work on complex, enterprise-scale projects while contributing to a supportive and forward-thinking engineering culture.

Job Summary

As a UI Engineer, you will design, develop, and maintain web-based user interfaces using React and TypeScript, with a strong emphasis on code quality and automated testing. You will collaborate closely with cross-functional teams to deliver intuitive, high-performing solutions that meet business needs, while contributing to agile practices and continuous improvement.

Key Responsibilities

Design, develop, and maintain web-based user interfaces written in TypeScript using React.
Ensure high-quality code through automated testing, particularly integration testing.
Collaborate with Business Analysts, QA Engineers, and Project Managers to deliver business-driven solutions.
Wireframe user interfaces for rapid prototyping and feedback.
Contribute across the full development lifecycle, supporting team members in building T-shaped skills.
Actively participate in agile ceremonies and promote an agile mindset within the team.
Maintain clear documentation of code, processes, and system configurations.

Person Specification

Essential Criteria

Minimum 3 years’ professional experience in web application development.
Recent experience with React functional components (other frameworks may be considered).
Proven experience writing integration and unit tests for user interfaces.
Experience designing and building systems using a contract-first methodology.
Comfortable creating wireframes using Figma (or similar tools).
Knowledge of isomorphic frameworks (e.g., ).
Experience with mono-repo tooling such as NX or Yarn Workspaces.
Strong background in agile environments with a clear agile mindset.
Strong attention to detail and ability to deliver under pressure.
Experience collaborating with stakeholders to create effective user interfaces.

Desirable Criteria

Strong proficiency in TypeScript/JavaScript.
Moderate CSS skills.
Understanding of UX and accessibility principles.
Familiarity with AWS software solutions.
Experience with Git for version control and JIRA for backlog management.
Excellent communication skills, both written and verbal.
Strong problem-solving ability with critical and creative thinking.

Benefits

25 days’ annual leave plus bank holidays.
Pension, Private Medical Insurance, Life Assurance, and Income Protection.
Bonus scheme.
Coaching, Employee Assistance Programme, and parental leave support.
Season ticket loan, cycle-to-work scheme, and travel insurance.
Hybrid working model (3 days in office, 2 from home).

Why Join?

Competitive salary (£45,000 - £60,000), bonus, and benefits.
Hybrid working with a modern Belfast office.
Work on enterprise-scale projects with a global impact.
Collaborative, supportive culture with opportunities to learn and grow.

Skills:
React Typescript AWS GraphQL Lambda

Principal React Engineer

The Opportunity

We’re partnering with a highly regarded technology organisation delivering enterprise-scale digital platforms used by some of the world’s leading brands.

They are now seeking a Principal React Engineer to play a key role in modernising and evolving their front-end architecture as part of a major multi-year transformation programme.

In this role, you will act as the technical leader in the React space - shaping front-end architecture, improving performance, introducing best-practice engineering standards, and contributing significantly to shared codebases. You’ll collaborate closely with product, UX, backend engineering, and data teams to deliver seamless, scalable, customer-facing applications used globally.

This is an opportunity to influence technical direction, set standards, and mentor others, while remaining deeply hands-on in building world-class front-end solutions.

Key Responsibilities

Front-End Engineering & Architecture (80%)

Design and evolve front-end architecture for complex, distributed systems.
* Ensure UI/UX designs are technically feasible, performant, and accessible.
* Implement information architecture and interaction design aligned with backend specifications.
* Develop new user-facing features using modern, component-driven development.
* Build and maintain internal design systems and reusable component libraries.
* Write clean, test-driven, production-quality React and TypeScript code.
* Optimise applications for speed, scalability, maintainability, and accessibility.
* Contribute regularly to shared codebases with minimal oversight.
* Participate in the full software development lifecycle and communicate progress to the Development Director.
* Update, maintain, and modernise existing front-end applications.

Product Analysis & Support (15%)

Work with Customer Support and Implementation teams to resolve issues and bugs.
* Support cross-functional teams with technical insights, solutions, and guidance.
* Engage with customers and internal teams on technical requirements or project status.

Innovation & Continuous Improvement (5%)

Stay ahead of front-end trends and emerging technologies.
* Contribute ideas to improve processes, tools, and product capabilities.
* Identify opportunities to drive innovation across the engineering function.

Essential Skills & Experience

Bachelor’s degree in Computer Science, Engineering, or similar discipline (or equivalent experience).
* 5+ years’ experience building complex front-end applications at scale.
* React 18+ & TypeScript expertise, including:
- Advanced hooks
- Strict typing, generics
- Composition patterns
- Performance optimisation
  * Experience with:
- TanStack Query, Router, Table, Virtual
- Vite
- React Hook Form & Zod
- Nx Workspace
- Tailwind CSS
- Vitest, Cypress, MSW
- Storybook 8
  * Strong understanding of component-driven development and design systems.
  * Knowledge of micro-frontend architecture, Nx monorepos, and domain-driven design.
  * Experience writing high-quality unit, integration, and functional tests.
  * Ability to break down complex problems and collaborate with cross-functional teams.
  * Strong communication, documentation, and mentoring skills.

Desirable Skills

Experience working with large-scale API-driven platforms.
* Understanding of cloud-native architecture (Azure, AWS, or GCP).
* Knowledge of CI/CD pipelines and modern DevOps practices.
* Exposure to back-end or full-stack environments.
* Experience working in fast-moving or customer-facing product environments.

Why Join?

Play a pivotal role in a major front-end platform modernisation.
* Lead technical direction in React while remaining fully hands-on.
* Work across enterprise-scale products used globally.
* Hybrid working with only 2 days on-site in Belfast.
* Exceptional salary package
* Strong engineering culture, collaborative environment, and real autonomy.
* Opportunities to influence architecture, standards, and front-end strategy.

Skills:
React Belfast Derry

UI Engineer - React | TypeScript | | Figma

Build clean, scalable UIs for world-class trading software
Own the front-end architecture in a modern React ecosystem
Hybrid, high-trust team building complex UI flows from scratch

The Role

An award-winning trading and data infrastructure company is hiring a UI Engineer in Belfast. You’ll design, build, and test highly performant front-ends using modern TypeScript, React, and in a collaborative Agile environment.

You’ll work closely with cross-functional teams - designers, QAs, BAs, and back-end developers - to build user interfaces that solve real business problems at scale. Strong attention to detail, TDD skills, and a passion for quality user experiences are key.

Why Apply?

Negotiable salaries
Bonus
Hybrid working - 3 days onsite
Private healthcare, life assurance, digital GP
Genuine technical ownership on high-value UI work

What You’ll Do

Build and maintain web UIs with TypeScript, React, and
Use contract-first and test-first approaches (integration & unit tests)
Work with Figma to wireframe and prototype interfaces
Contribute to a mono-repo setup (NX / yarn workspaces)
Collaborate across disciplines to refine features and improve UX
Support an Agile, quality-first delivery culture
Document components, decisions, and workflows

Your Skills & Experience

Must-Have:

3+ years’ commercial experience building web apps
Strong React functional component knowledge
Solid experience with integration/unit testing for UI
Comfortable with Figma or similar wireframing tools
Knowledge of contract-first or API-driven UI design
Agile mindset and ability to work across the SDLC
Familiarity with mono-repo tooling (NX, Yarn workspaces)

Nice-to-Have:

or isomorphic framework experience
Understanding of UX/accessibility principles
Knowledge of AWS
Strong TypeScript/JavaScript and good CSS fundamentals
Comfortable using Git and JIRA
Collaborative, T-shaped engineer who supports others’ growth

Why This Team?

You’ll be working with sharp engineers in a high-performing Agile team, building UIs that power global markets. The code you ship makes a real-world difference - and you’ll have the space and support to do it right.

Skills:
React Angular C# .NET AWS

Senior Software (Full Stack Engineer)

Senior Software Engineer (Full Stack)

Step into a role where innovation, scale, and real-world impact come together. We’re partnering closely with a globally established organisation at the forefront of financial and commodities market infrastructure, supporting them in hiring a Senior Full Stack Engineer to help drive the next generation of their platform technology.

We’ve worked alongside this client extensively and can genuinely say they are one of the most collaborative, communicative, and forward-thinking teams we engage with. They’re continuously evolving, investing in their people, and fostering a culture built on curiosity, learning, and shared success. If you’re someone who enjoys asking questions, exploring better ways of doing things, and being surrounded by passionate, growth-minded engineers, you’ll feel right at home here.

The Role

You’ll play a key role in designing and building scalable, low-latency applications that power global markets. Working within a highly skilled team, you’ll contribute across the full development life cycle while helping shape technical direction and best practices.

What you’ll be doing:

Leading development, testing, and deployment of modern software solutions
Collaborating with cross-functional teams to deliver technical improvements
Contributing to architectural evolution and continuous delivery practices
Mentoring junior engineers and championing engineering excellence
Driving innovation through experimentation and continuous learning

About You

5+ years’ experience in Full Stack or Front/Back-End development
Strong skills in TypeScript, React, Redux, and modern JavaScript frameworks
Experience with REST APIs, GraphQL, WebSockets, and microservices
Familiarity with AWS (Lambda, Fargate, API Gateway, AppSync)
Knowledge of Docker, Kubernetes, and Terraform
Experience with SQL and/or NoSQL databases
Comfortable working in Agile environments with a focus on quality and testing
A proactive mindset with strong problem-solving and communication skills
Naturally curious, enthusiastic, and eager to learn

Salary & Benefits

Competitive base salary with performance-related incentives
Hybrid working model
Generous annual leave with additional options
Pension scheme and private healthcare

Flexible Benefits Programme:

Private medical insurance
Digital GP, dental, and eye care coverage
Group life assurance
Income protection
Pension contributions
Cycle to Work scheme

Additional Perks & Wellbeing:

Employee Assistance Programme
Wellness platform access
Local and retail discounts
Car parking discounts
Give As You Earn scheme
Access to technology discount schemes

For further information on this job, please apply via the link or contact the recruitment team for a confidential chat today. Follow us on LinkedIn for expert career advice, the latest jobs, industry news and much more

Skills:
Senior Software Engineer Senior Engineer Senior Frontend Engineer Full Stack Developer Senior Full Stack Developer

Senior Full Stack Engineer (Belfast-Hybrid)

MCS Group is delighted to be working with a global fintech market leader as they continue to scale their next-generation platform team with the addition of a Senior Full Stack Engineer.

This is a unique opportunity to join a newly formed, high-performing engineering function building a greenfield platform in partnership with AWS. You’ll work on cutting-edge, event-driven systems in a truly global environment, contributing across the full SDLC while mentoring junior engineers and influencing architectural decisions.

The Role:
You’ll take ownership of design, development, testing, and deployment of scalable services, driving engineering best practice and contributing to a modern microservices architecture. This role offers strong exposure to AWS-native technologies and the chance to work closely with senior technical stakeholders.

Key Requirements:

5+ years’ experience in full stack or backend engineering (TypeScript preferred)
Strong experience with React, TypeScript, REST/GraphQL APIs
Solid backend development experience (Node.js / C# / Java)
Experience with AWS (Lambda, API Gateway, AppSync, Fargate)
Microservices, event-driven architecture & messaging systems
Strong database experience (SQL & NoSQL)
CI/CD, testing, and Agile delivery experience

Desirable:

Experience in financial systems or regulated environments
C# / .NET exposure
Knowledge of low-latency systems

This is an excellent opportunity to work on a highly visible platform with real impact, within a collaborative, forward-thinking engineering culture.

To speak in absolute confidence about this opportunity, please send an up to date CV via the link provided or contact Matthew Rainey at m.rain

Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current and exclusive roles

MCS Group is committed to Equality, Diversity, and Inclusion for all, being the first recruitment agency in NI to achieve Bronze Diversity Mark accreditation, if you have a disability which means you require a reasonable adjustment to be considered at any stage of the recruitment process, please contact us and we will endeavour to facilitate the request.

Not all agencies are the sameMCS Group are passionate about providing a first-class service to all our customers and have an independent review rating of 4.9 stars on Google.

Skills:
Typescript c# java html react developer

Senior Software Engineer (Front End)

TP ICAP Group Services Ltd

The TP ICAP Group is a world leading provider of market infrastructure.

Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions.

Through our people and technology, we connect clients to superior liquidity and data solutions.

The Group is home to a stable of premium brands. Collectively, TP ICAP is the largest interdealer broker in the world by revenue, the number one Energy & Commodities broker in the world, the world’s leading provider of OTC data, and an award winning all-to-all trading platform.

Founded in London in 1866, the Group operates from more than 60 offices in 27 countries. We are 5,200 people strong. We work as one to achieve our vision of being the world’s most trusted, innovative, liquidity and data solutions specialist.

Role Overview

Join TP ICAP as a Senior Software Engineer and help shape the future of our digital platforms. You’ll be part of a talented team delivering business-critical software for our internal broking division and external clients. This is an opportunity to work on high-impact projects, influence technical direction, and create intuitive, scalable user interfaces that power global financial markets.

Working in an Agile environment, you’ll take solutions from design through to implementation, with a strong focus on continuous improvement and collaboration. We value innovation, experimentation, and knowledge sharing within self-organising, cross-functional teams.

At TP ICAP, you’ll work on cutting-edge technology that underpins global financial markets. We offer a collaborative environment, opportunities for professional growth, and the chance to make a real impact. If you’re passionate about front-end engineering and thrive in a fast-paced, innovative setting, we’d love to hear from you.

Key Responsibilities

Collaborate with Solution Architects and Principal Engineers to design and implement front-end solutions aligned with our IT strategy.
Take ownership of engineering deliverables, ensuring quality, usability, and adherence to best practices.
Mentor and support team members, fostering a culture of technical excellence and continuous learning.
Drive innovation by exploring new technologies, frameworks, and methodologies.
Communicate progress effectively and raise impediments early to minimise delivery risks.

Experience & Competencies

Essential

Proven experience building modern, scalable, and maintainable web interfaces using React, TypeScript, JavaScript, and HTML/CSS, following reusable design patterns.
Strong knowledge of HTML5, React 16+, TypeScript 4+, JavaScript ES6, and JSX.
Experience delivering consistent UX and UI across browsers.
Familiarity with component libraries such as Material UI or Ant Design.
Hands-on experience creating automated tests (end-to-end, integration, regression) using tools like Selenium, Cypress, or similar.
Proficiency with build tools such as Webpack or Vite.
Understanding of performance optimisation techniques and web security best practices.
Appreciation of the full SDLC, with proactive involvement across design, development, QA, and post-release support.
Strong problem-solving skills, attention to detail, and ability to validate approaches through POCs.
Proficient in testing and documenting systems.

Desired

Experience using Figma for design mock-ups and collaboration.
Familiarity with Storybook for UI component development.
Exposure to financial/trading platforms and understanding of financial markets.
Experience with AWS services, C#, and relational databases.
Knowledge of TDD, BDD, or similar testing methodologies.

Band & Level

Manager / 6

#NIjobs

Not The Perfect Fit?

Concerned that you may not meet the criteria precisely? At TP ICAP, we wholeheartedly believe in fostering inclusivity and cultivating a work environment where everyone can flourish, regardless of your personal or professional background. If you are enthusiastic about this role but find that your experience doesn’t align perfectly with every aspect of the job description, we strongly encourage you to apply. You may be the ideal candidate for this position or another opportunity within our organisation. Our dedicated Talent Acquisition team is here to assist you in recognising how your unique skills and abilities can be a valuable contribution. Don’t hesitate to take the leap and explore the possibilities. Your potential is what truly matters to us.

Company Statement

We know that the best innovation happens when diverse people with different perspectives and skills work together in an inclusive atmosphere. That’s why we’re building a culture where everyone plays a part in making people feel welcome, ready and willing to contribute. TP ICAP Accord - our Employee Network - is a central to this. As well as representing specific groups, TP ICAP Accord helps increase awareness, collaboration, shares best practice, and holds our firm to account for driving continuous cultural improvement.

Location
UK - City Quays - Belfast

To be considered for this role you will be redirected to and must complete the application process on our careers page. To start the process click the Continue to Application below.

Lead Front-End Developer (React)

Company Description

Version 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly changing Digital-First world we live in. We foster strong partnerships with leading technology giants including Microsoft, AWS, Oracle, Red Hat, OutSystems, and Snowflake, ensuring that our customers are provided with the highest quality solutions and services.

Were an award-winning employer reflecting how our employees are at the very heart of Version 1 and what we do:

UK & Ireland’s premier AWS, Microsoft & Oracle partner

3400+ strong, €350/£300m revenue business
10+ years as a Great Place to Work in Ireland & UK
Best Workplace for Women in the UK & Ireland by GPTW
Best Workplace for Wellbeing in the UK by GPTW

Were a core values driven company, we hire people who share our values, and we reward those who display and foster them, its deeply embedded within our DNA. Invest in us and well invest in you!

Job Description

The ideal candidate is someone who has a track record of high-quality delivery, combined with a keen appetite for all aspects of software development.

You will have the opportunities to recommend and champion the use of new technologies whether for direct use in products or in supporting the development lifecycle. You should be hands-on, able to contribute individually, and should have experience within a fast-paced dynamic environment.

Role & Responsibilities:

Experience working closely with key stakeholders across the engineering team, including Architects, Product Owners, and UX designers understanding and demonstrating how written requirements translate into a technical solution

Develop interfaces for applications and develop high quality, efficient, reusable code and libraries for future use
Follow the agile development methodologies and practices
Exchange information and ideas with the team, evolve and model the new user-facing features
Constantly improve the products, through feedback and input on the product pipeline and roadmap.

Qualifications

5+ Years Front End Development experience working with React
Strong TypeScript experience
Experience in designing and developing UI software components and related functions
Experience working in an Agile development environment
Mentoring and supporting team
Input within a team in respect to coding standards, architecture, and continuous integration
Excellent problem solving and communication skills both written and verbal
Azure knowledge or experience desirable but not essential
Financial Services domain experience desirable but not essential

Additional Information

At Version 1, we believe in providing our employees with a comprehensive benefits package that prioritises their well-being, professional growth, and financial stability.

One of our standout advantages is the ability to work with a hybrid schedule along with business travel, allowing our employees to strike a balance between work and life. We also offer a range of tech-related benefits, including an innovative Tech Scheme to help keep our team members up-to-date with the latest technology.

We prioritise the health and safety of our employees, providing private medical and life insurance coverage, as well as free eye tests and contributions towards glasses. Our team members can also stay ahead of the curve with incentivized certifications and accreditations, including AWS, Microsoft, Oracle, and Red Hat.

Our employee-designed Profit Share scheme divides a portion of our company’s profits each quarter amongst employees. We are dedicated to helping our employees reach their full potential, offering Pathways Career Development Quarterly, a programme designed to support professional growth.

Senior Engineer (Full Stack)

TP ICAP Group Services Ltd

Group Overview

The TP ICAP Group is a world leading provider of market infrastructure.

Through our people and technology, we connect clients to superior liquidity and data solutions.

The Group operates from more than 60 offices in 27 countries. We are 5,300 people strong. We work as one to achieve our vision of being the world’s most trusted, innovative, liquidity and data solutions specialist.

Role Overview:

TP ICAP has Partnered with Amazon Web Services (AWS) to build the Next Generation of the Fusion Platform and make it Global Market Infrastructure. This role will be working in a new team to build out a new Platform based on the latest technology and architecture. You will be working alongside AWS and learning from the best. As a Senior Engineer you will be responsible for demonstrating excellent technical competencies with a desire to improve and mentor junior members of the team. You will take responsibility for your assigned work by taking ownership of the design, development testing and deployment of software across the team, and work closely with the Principal Engineer, Architects and Leads to ensure the successful deployment into production environments.

Role Responsibilities:

Be able to drive engineering improvements whilst communicating principles behind your work to other team members and the wider organisation.
Be proactive in supporting the team’s engagement in a well-defined SDLC that supports planning, prioritisation and delivery needs.
Support the team in leading conversations around estimation by leveraging previous experience, challenging requirements and fostering potential solutions.
Lead conversations around software systems to enable meaningful conversations about wider system architecture with Engineers.
Evolve systems towards target state architecture by refactoring and prioritisation of deliveries.

Essential/Desired Criteria:

Essential:

5+ years of demonstrable industry experience as a Full Stack or Front/Backend Engineer in Typescript in a professional environment.
Front-end skills
- Proficient in HTML5, CSS3, and Typescript
- Proficient in React, Redux, ReactQuery
- Experience with modern JavaScript frameworks - React
- Knowledge of version control systems (Git)
- Understanding of cross-browser compatibility
- Familiarity with RESTful APIs, GraphQL and Websockets
- Experience with CSS pre-processors e.g. Tailwind
Back-end skills
- Proficiency in backend programming languages (Typescript and/or other OOP language such as c#/Java)
- Strong database knowledge (SQL and NoSQL)
- Proficiency with RESTful APIs and GraphQL APIs and Websockets
- Experience with microservices architecture
- Knowledge of version control systems (Git)
- Experience with Terraform
- Experience with automated testing
- Experience with AWS (AWS Lambda, AWS Fargate, Amazon API Gateway, AWS AppSync)
Worked within an Agile Cross-functional delivery team.
Developing well tested software into low latency event driven production environments.
Full software development lifecycle in a technical role.
Pub/Sub patterns with Messaging technologies (such as SOLACE/AMQP)
Worked within a technical platform team, delivering reusable services across multiple agile projects.
Microservice Architecture.
Containerization.
Maintaining code quality with Unit, Integration and e2e testing.
AWS cloud ecosystem and the AWS CLI (or industry equivalent).
Linux shell or Windows PowerShell.
CI and CD flows within an enterprise environment. Continuous Delivery
Agile tooling to support team delivery, such as JIRA and other project management systems.
Open to innovative ideas/ experiences and ability to create new ideas, approaches or insights.
Seeks opportunities for improvements.
Demonstrates high levels of energy in seeking out and achieving new goals.
Can work with BA’s/PO’s to demystify ambiguity, handle challenge, and is comfortable to challenge team mates constructively.
Adapts communication style to suit audience.
Works ethically and shows respect for both professional and company values.
Excellent attention to detail, highly organised with a proactive approach.
Strong analytical ability and innovative problem solving skills.
Software Design Patterns.
Source control (Git).

Desired:

OOP \ SOLID Principles.
Demonstrable experience of C# (.Net 8+) in a professional environment.
Contribution to open-source projects.
Experience of regulatory driven projects.
Knowledge of Financial Markets, Systems and Over the Counter (OTC) products.

The Fusion Platform Team Builds, Owns and Runs it’s own services all the way through to Production. The services are used 24/5 by several teams. As part of a global team, there may be times when you are asked to assist with production incidents or support outside regular hours to maintain operational stability.

Band & Level - Manager, 6

Not The Perfect Fit?

Company Statement

Location
UK - City Quays - Belfast

To be considered for this role you will be redirected to and must complete the application process on our careers page. To start the process click the Continue to Application below.

Senior Software Engineer (Back End)

TP ICAP Group Services Ltd

The TP ICAP Group is a world leading provider of market infrastructure.

Through our people and technology, we connect clients to superior liquidity and data solutions.

Role Overview

Join TP ICAP as a Senior Software Engineer and play a pivotal role in building business-critical software solutions for our internal broking division and external clients. You’ll be part of a highly skilled, collaborative team working in an Agile environment, driving innovation from design through to deployment. This is an opportunity to influence technical direction, mentor others, and deliver solutions that shape the future of financial markets.

We value continuous improvement, experimentation, and knowledge sharing. You’ll work in a self-organising, cross-functional team with a strong focus on automation, scalability, and cloud-native architecture.

At TP ICAP, you’ll work on cutting-edge technology that underpins global financial markets. We offer a collaborative environment, opportunities for professional growth, and the chance to make a real impact. If you’re passionate about engineering excellence and thrive in a fast-paced, innovative setting, we’d love to hear from you.

Key Responsibilities

Collaborate with Solution Architects and Principal Engineers to design and implement solutions aligned with our IT strategy and vision.
Take ownership of engineering deliverables, ensuring quality, scalability, and adherence to best practices.
Mentor and support team members, fostering a culture of learning and technical excellence.
Drive continuous improvement by exploring new technologies, tools, and methodologies.
Communicate progress effectively, proactively raising impediments to minimise delivery risks.

Experience & Competencies

Essential

Proven experience designing, developing, and maintaining distributed, event-driven, cloud-native systems.
Expertise in modern .NET technologies (.NET Framework and .NET Core) using C#.
Strong experience in API design and development (REST, GraphQL).
Solid understanding of relational database design and optimisation (MSSQL, MySQL).
Hands-on experience deploying and managing cloud environments (AWS, Azure).
Comprehensive knowledge of the full SDLC, with proactive involvement across design, development, QA, and post-release support.
Ability to balance pragmatism with innovation, delivering high-quality solutions under tight deadlines.
Strong problem-solving skills, attention to detail, and ability to validate approaches through POCs.
Experience building automated testing solutions for complex systems.

Desired

Proficiency in WPF application development.
Exposure to financial/trading platforms and understanding of financial markets.
Knowledge of FIX protocol and FIX message handling.
Experience with AWS services, serverless architecture, and microservices.
Familiarity with Java, JavaScript, or React.
Understanding of TDD, BDD, or similar testing methodologies.

Band & Level

Manager / 6

#NIJobs

Not The Perfect Fit?

Company Statement

Location
UK - City Quays - Belfast

To be considered for this role you will be redirected to and must complete the application process on our careers page. To start the process click the Continue to Application below.

Senior Software Engineer

MCS Group is delighted to be partnering with a growing consultancy as they establish a brand-new engineering presence in Belfast. Our client is a high-growth cloud, data, and AI engineering consultancy delivering mission-critical solutions for enterprise and scaling clients across modern cloud ecosystems. This is a unique opportunity to join at an early stage and play a key role in shaping both technical delivery and the future growth of the Belfast team. The Role As a Senior Software Engineer, you'll work closely with clients to design, build, and deliver scalable, production-grade applications and platforms across cloud, web, API, and data-driven environments. You'll join a highly collaborative engineering team embedded directly with enterprise clients, working on complex systems that require strong technical ownership, autonomy, and adaptability. While the initial project will involve TypeScript-focused development, the company is open to engineers from strong Java or Python backgrounds who are comfortable learning new technologies and working across a modern engineering stack. This role would particularly suit someone who enjoys solving complex engineering challenges, working independently, and wants the opportunity to grow into a future technical leadership or people management role as the Belfast team expands. What you'll be doing Design and build scalable, enterprise-grade software solutions across frontend, backend, and cloud platforms Develop modern APIs, backend services, and distributed systems Work closely with client stakeholders in a delivery-focused consulting environment Build and deploy cloud-native applications on Google Cloud Platform Contribute to architecture decisions, engineering standards, and technical best practices Collaborate on data-driven and AI-enabled solutions Work across modern engineering tooling including CI/CD, infrastructure automation, and containerised environments Take ownership of technical delivery and help shape the future engineering culture of the Belfast team What you'll bring Strong commercial software engineering experience in large-scale production or enterprise environments High proficiency in at least one core backend language such as Java or Python Experience building scalable backend systems, APIs, and modern applications Exposure to TypeScript/Node.js or a strong willingness to work with and learn modern TypeScript technologies Experience working with cloud platforms such as Google Cloud Platform, AWS, or Azure Strong understanding of software architecture, engineering best practices, and scalable system design Comfortable working autonomously and taking ownership in a fast-moving environment Strong communication skills and experience working directly with stakeholders or clients Experience mentoring others or an interest in progressing into team leadership would be highly desirable Nice to have Experience with React or modern frontend frameworks Exposure to GraphQL APIs Experience with Terraform, Docker, or infrastructure-as-code tooling Familiarity with data engineering, analytics, or AI/ML-driven systems What's in it for you Join at an early stage of a fast-growing engineering consultancy Opportunity to become a foundational hire within the Belfast team Work on large-scale, enterprise-grade cloud and AI projects Gain exposure to cutting-edge technologies across cloud, data, and AI engineering Clear progression opportunities into technical leadership or management Hybrid working model Competitive salary and comprehensive benefits package Collaborative, engineering-led culture with genuine ownership and impact To speak in absolute confidence about this opportunity, please send an up to date CV via the link provided or contact Matthew Rainey at m.rain Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current and exclusive roles MCS Group is committed to Equality, Diversity, and Inclusion for all, being the first recruitment agency in NI to achieve Bronze Diversity Mark accreditation, if you have a disability which means you require a reasonable adjustment to be considered at any stage of the recruitment process, please contact us and we will endeavour to facilitate the request. Not all agencies are the sameMCS Group are passionate about providing a first-class service to all our customers and have an independent review rating of 4.9 stars on Google. Skills: typescript node SQL Python Java GCP

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