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

Group Overview

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.

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?

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.

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