Backend Engineer Jobs in Belfast

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Backend Engineer Jobs in Belfast

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Looking for Backend Engineer jobs in Belfast? Discover the latest opportunities on Haystack’s dedicated job board, tailored for skilled backend developers eager to work in Belfast’s thriving tech scene. Find your next role with top employers hiring backend engineers and advance your IT career today!

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Principal Typescript Engineer (Full stack) x2

+11

Are you an engineering leader who wants to shape strategy, drive architectural direction, and deliver platforms that scale globally?Do you want the autonomy to influence technical vision while staying hands-on with modern engineering practices?My client is seeking a Principal Full-Stack Engineer to lead the technical direction of their platforms and elevate engineering standards across the organisation. This is a senior technical leadership role suited to someone with 8+ years’ experience, strong architectural instincts, and a proven ability to deliver high-impact solutions in complex environments.You’ll be operating at the intersection of strategy, architecture, and delivery-guiding teams, influencing design decisions, and ensuring that platforms evolve toward a modern, scalable, cloud-native target state.Role OverviewAs a Principal Engineer, you will:

Lead end-to-end delivery of complex, high-value features and services, ensuring they meet the highest performance, security, and reliability standards.

Shape architectural direction, driving best practices in system design, standardisation, and long-term technical evolution.

Mentor senior engineers, uplift engineering capability, and champion a culture of excellence and continuous improvement.

Translate business objectives into robust technical solutions, ensuring clarity, alignment, and challenge where needed.

Deliver consistently within a well-defined SDLC, promoting planning discipline, structured estimation, and quality-focused delivery.

Drive innovation through research, experimentation, and adoption of emerging technologies that support future platform growth.

This role offers significant technical influence, the opportunity to work on business-critical systems, and the ability to shape engineering strategy at an organisational level.Key Responsibilities

Define and communicate engineering standards and architectural principles across teams.

Lead architectural discussions, ensuring decisions align with long-term technical and business strategy.

Support teams in delivering high-quality, reusable services and components that scale across multiple projects.

Guide prioritisation and decomposition of work, ensuring delivery efficiency without compromising quality.

Champion test automation, measurement, and observability to support continuous improvement.

Promote high-quality documentation and clear communication across engineering and product teams.

Experience & Technical SkillsFrontend Development

Advanced proficiency in HTML5, CSS3, TypeScript, and modern JavaScript (ES6+).

Deep experience with the React ecosystem (React, Redux, React Query, GraphQL).

Strong understanding of responsive design, cross-browser compatibility, and frameworks such as Tailwind.

Skilled in API integration and Git-based workflows.

Backend Development

Expert experience in TypeScript across backend services.

Strong command of SQL and API development (REST & GraphQL).

Experience with microservices, containerised systems, and event-driven architectures (RabbitMQ, SOLACE, AMQP).

Comfortable with Linux shell scripting and Windows PowerShell.

Cloud & DevOps

Hands-on experience with AWS services and command-line tooling.

Strong understanding of CI/CD pipelines and Infrastructure as Code (Terraform).

Commitment to high coverage test suites (unit, integration, E2E).

Tooling & Collaboration

Experience with JIRA or similar Agile delivery tools.

Strong understanding of automated testing and modern CI practices.

Desired

Experience delivering solutions within regulated environments.

Understanding of capital markets, trading systems, and OTC products.

Familiarity with regulatory or platform-driven initiatives.

Open-source contributions or scripting experience (Python, Ruby, Perl) useful for workflow automation.

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

.Net Lead ( Scale Up )

+2

.NET LeadLocation: Belfast, Hybrid Type: Permanent Compensation: Competitive with bonus and benefitsAbout the CompanyA home-grown Northern Ireland success story in e-commerce technology, this organisation builds modern digital products that power convenience brands at serious scale. Their platforms underpin real supply chain and operational decision-making, supporting physical sites across the UK and beyond. The mission is simple: identify the pain, build the remedy, and scale it.Why This RoleThis is a chance to lead a small, high-performing .NET team shipping features used daily by real customers. Youll have ownership, clear product direction, and a leadership team that values pragmatic engineering and fast feedback loops. With the platform expanding into new customers and international markets, its an ideal time to join and influence the next chapter.What You Will DoLead, mentor, and develop a team of .NET engineers, setting standards and elevating engineering quality Design and build services powering ordering, payments, delivery workflows, and analytics Own technical decision-making across architecture, performance, reliability, and security Work closely with product, design, and data teams to translate operational problems into simple, effective software Champion clean code, automated testing, and continuous delivery practices Guide the platforms evolution towards modular, cloud-native architectures Review code, support career development, and contribute to hiring plans Collaborate with external stakeholders including retail partners and university research teamsTechnology EnvironmentC Sharp and .NET 6 or newer ASP.NET Core, Web APIs, background services SQL Server and modern ORM patterns; exposure to alternative datastores is beneficial Event-driven integrations, messaging, and queuing Azure preferred; AWS experience welcomed Docker, CI/CD pipelines, and Infrastructure as Code Frontend awareness for API design; React or similar is a plus Observability tooling: logging, metrics, alertingWhat You Will BringProven experience leading .NET engineering teams delivering production-grade systems Strong architectural capability spanning domain modelling, API design, and data design A history of improving code quality, reliability, and delivery flow Comfort working in a product-led environment with rapid iteration Excellent communication skills with both technical and non-technical stakeholders A passion for building software that solves real customer problemsNice to HavePayments, order orchestration, or logistics experience Knowledge of food safety or allergen information systems Awareness of compliance and regulated data handling Experience with cloud performance tuning and cost optimisationWhats On OfferMeaningful ownership of a live platform used at scale Progression path toward Engineering Manager or Architect Hybrid working from a modern Belfast office Dedicated training budget and time set aside for learning A supportive, delivery-focused culture that values initiativeInterview ProcessIntro call with Talent and the Hiring Manager Technical conversation and practical design discussion with senior engineers Final culture and values conversation with leadershipHow to ApplyBased within commuting distance of Belfast? Message Ryan Quinn on LinkedIn to learn more and share your CV.Skills: .Net Azure SQL

Technical Lead - Java Engineer

Senior Java Technical Lead - Belfast (Hybrid)Up to £110,000 + Bonus + Exceptional Benefits | Backend Java | Global Impact | Flexible WorkingMCS Group is delighted to be partnering with a global technology company to recruit a Senior Java Technical Lead.We’re seeking a highly experienced technical leader to join a global product engineering team in a role that involves leading complex architecture, design, and delivery within a high-availability environment, collaborating closely with internal stakeholders and developers worldwide.What you’ll do:

Lead design and development of large-scale backend services in Java/J2EE (Spring, Hibernate, REST APIs).

Own solution architecture across microservices, containers (Docker/Kubernetes), and cloud-native deployments.

Oversee development standards, documentation, mentoring, and quality assurance.

Engage in GenAI tooling and integration (e.g. GPT, Claude, GitHub Copilot)

Ensure high system performance, maintainability, and security across deployments.

What you’ll bring:

Extensive experience in enterprise-level Java development with deep REST API and microservice expertise.

Strong experience with databases (PostgreSQL/Oracle), cloud-native practices, and CI/CD pipelines (Jenkins, GitHub Actions).

Proven leadership in agile environments and mentoring technical teams.

Exposure to monitoring , Kafka, caching and AI technologies is advantageous

Why Join

Hybrid working: 3 days onsite in a modern Belfast office

Excellent benefits package including:

Annual Bonus

Private healthcare, dental, and vision plans

9% non-contributory pension scheme

Lifestyle allowance & wellbeing support

Generous maternity/paternity leave

Cycle to Work & Gym Subsidy programs

Access to company equity programs and training budget

To speak in absolute confidence about this opportunity, please send an up to date CV via the link provided or contact Matthew Rainey, Specialist Tech Recruiter, at MCS GroupEven 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 rolesSkills: software developer Java software engineer Lead java developer senior developer technical lead

Solutions Engineer - Python

Senior Integrations Engineer - BelfastAbout the CompanyMCS Group are delighted to be working EXCLUSIVELY with a fast-growing cybersecurity scale-up specialising in modern mobile security and device protection. Their platform helps organisations keep employee devices safe by identifying vulnerabilities, risky settings, outdated software, and potential indicators of compromise - then guiding users through simple steps to fix them.They’re addressing a major gap in the market by treating mobile devices with the same level of security and visibility as traditional enterprise endpoints. The company is well-funded, backed by strong industry partners, and has a clear long-term roadmap.The Belfast engineering team is at the heart of the product - working on core integration’s, backend systems, and complex technical challenges that have real impact on the overall platform.The Role: Senior Integrations EngineerThis is a high-impact technical role focused on building, owning, and improving integration’s that customers rely on to connect their security tools with the platform. You’ll work deeply across APIs, SDKs, automation, and customer environments - with full autonomy to design solutions end-to-end.What You’ll Do

Build and maintain technical integrations between the platform and a wide range of external systems.

Develop APIs, SDKs, and reusable components that enable customers and partners to extend the product.

Analyse and interpret third-party API documentation to design reliable, secure data flows.

Create and support webhooks, event-driven pipelines, and synchronisation processes.

Work directly with customer engineering teams on deployment, configuration, troubleshooting, and optimisation.

Set up effective monitoring, logging, and error-handling for large-scale environments.

Enhance internal tooling, automation, and observability to improve overall developer efficiency.

Collaborate cross-functionally with engineering, product, and customer-facing teams across regions.

What They’re Looking For

Strong integration development experience (core requirement).

Background in API or SDK development.

Experience working with customers or in a technical consulting role.

Good understanding of cybersecurity concepts and enterprise security tools.

Someone who can lead integrations independently from design through to delivery.

What’s in it for you?

Highly Competitive base salary, flexible dependant on experience.

Unlimited PTO

Pension contribution

Steer the direction of a soon to be multi-award-winning product worldwide

Ownership and freedom to put your own stamp on the work you do

Join a team where all ideas are encouraged and welcomed

Flexible working and remote working options - Must be able to commute to Belfast office at least once a week.

To speak in absolute confidence about this opportunity please contact Rachael Walker, IT Recruitment Manager at MCS Group or click the apply button below.If this position is not right for you, we have others that are.Please visit MCS Group to view a wide selection of our current jobs or give us a call .All conversations will be treated in the strictest of confidence.Skills: technical solutions engineer Integrations engineer python solutions engineer SDKBenefits: Work From Home

Enterprise Data Management (EDM) & Automation Jr./ Developer - For Graduates

Job Title: Enterprise Data Management (EDM) & Automation Jr./ DeveloperReporting to: EDM & Automations LeadSalary: Depends on experienceContract: Permanent, Full TimeLocation: Belfast, Northern IrelandFunds-Axis is a young, fast-growing Regulatory Technology (RegTech) business. We combine deep regulatory expertise with cutting-edge technology to deliver exceptional service to global asset managers, administrators, and depositary banks. Our platform supports investment compliance, regulatory reporting, and shareholder disclosure across multiple jurisdictions. As regulatory demands grow, so does the need for robust, automated data solutions, making this role central to our continued success.ROLE OVERVIEW /PURPOSE OF JOB:The EDM & Automation Developerwill be responsible for automating data, resolving data issues, reporting, monitoring and automation of operational processes to ensure delivery of a consistently high level of service to clients.You will be adaptable and hard-working, and demonstrate strong communication skills both in relations with your team and with the wider Funds-Axis business.You will deliver the support and the operational excellence in accordance with the Company Mission and Vision, and in a manner supportive of the Funds-Axis Values and Business Culture.KEY RESPONSIBILITIES:We are currently seeking a skilled developer with experience in ETL automation and data operations. The day-to-day responsibilities of the EDM & Automation Developer will include:

Designing, building, and maintaining ETL workflows using EasyMorph and other automation tools.

Supporting data ingestion, transformation, and validation processes across multiple systems.

Collaborating with compliance and reporting teams to ensure timely and accurate data delivery.

Monitoring and troubleshooting data pipelines to ensure reliability and performance.

Documenting processes and contributing to continuous improvement initiatives.

Assisting in the integration of new data sources and automation of manual tasks.

DESIRED CANDIDATE:The ideal candidate will have:

A degree in Finance, Computer Science, Data Engineering, or a related field.

Knowledge of data operations, ETL development, or automation.

Strong understanding of EasyMorph or similar ETL tools.

Strong understanding of data structures, transformation logic, and workflow automation.

Familiarity with SQL, scripting languages (e.g., Python), and cloud-based data environments.

Excellent problem-solving skills and attention to detail.

Ability to work independently and communicate effectively across teams.

WHY CHOOSE US?In return for your commitment, we offer a strong remuneration package and significant opportunities to grow and develop as our business expands, including:

33 days vacation leave per annum (including all bank/public holidays).

5.5% employer contribution pension (for UK location).

Remote/ Hybrid working facility.

Provident Fund and Gratuity benefits as per law (for India location).

Healthcare & life assurance (for UK location).

Comprehensive group medical cover (for India location).

Progressive maternity and paternity pay.

Work with a great team.

Travel opportunities.

Work with leading international finance companies.

First-class training package.

Excellent career progression opportunities.

Placement Software Engineer

Location: Belfast, United KingdomThales people architect solutions that are relied upon to deliver operational advantage at every decisive moment throughout the mission. Defence and armed forces customers rely on us to deliver the full range of defensive systems for land, sea, and air. From early warning, to threat neutralisation, our platforms cover all levels from very short-range systems, to extended protection across the entire battle-space including Airspace Mobility Solutions, Vehicles and Tactical Systems and Missile Defence, Optronics, and Radar.Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer. We innovate across the major industries of Aerospace, Defence, Security and Space. Your health and well-being matters to us and thats why we offer you the flexibility to do whats important to you; whether thats part time hours, job sharing, home working, or the ability to flex your start and finish times. Where possible, we support a working pattern that suits your lifestyle and helps you reach your ambitions.Software Placement EngineerKey responsibilities

Design and coding of software

Software requirements analysis and requirements management Software test planning and execution Conducting all aspects of the software development process in accordance with company processes and standardsSkills, qualifications and experienceEssential

A minimum of a BSc/BEng (Hons) degree in a subject with a significant computing content e.g. Computer Science, Software Engineering, Games Development, Combined Electronics and Computing

Appreciation of software requirements analysis, specification & design Understanding of the principles and levels of software testing Knowledge of software development lifecycles and methodologies

Practical experience of programming in a high level language (C, C++, C#)

Practical experience in a number of stages of the software engineering lifecycle Understanding of data communications (e.g. 1553, RS422) and networking Knowledge of Agile development methodologies Understanding of software configuration control Knowledge of real-time operating systems Knowledge of UML Experience of working as a member of a software development teamPlease note that GDP activities take place during the working week but may require the investment of some personal time for travel and follow up activities. You may have the opportunity to travel to Thales and non-Thales sites throughout the UK when participating in Graduate Development Programme activities.Connect with Fiona Tal, Talent Acquisition Partner #LI-FT1 who is eager to explore together with you this exciting opportunity.This role will require SC Clearance. It would be advantageous if currently held, however, if not currently held, it is a requirement that the successful applicant will undergo, achieve, and maintain SC Clearance. Please visit the UKSV website for further guidance.To be eligible for full SC, you generally need to have resided in the UK for the last 5 years. In some circumstances, a minimum of 3 years residence in the UK over the last 5 years may be accepted, with additional overseas checks.In line with Thales’ Baseline Security requirements, candidates will be asked to provide evidence of identity, eligibility to work in the UK and employment and/or education history for up to three years. Some vacancies may require full Security Clearance which can require further evidence to be provided. For further details of the evidence required to apply for Baseline and Security Clearance please refer to the Defence Business Services National Security Vetting (DBS NSV) Agency.At Thales we provide CAREERS and not only jobs. With Thales employing 80,000 employees in 68 countries our mobility policy enables thousands of employees each year to develop their careers at home and abroad, in their existing areas of expertise or by branching out into new fields. Together we believe that embracing flexibility is a smarter way of working.Thales UK is committed to providing an inclusive and barrier-free recruitment process. We will provide reasonable adjustments and support to ensure neuro-diverse applicants or those with a disability or long-term condition can be their best during the recruitment process. To request an adjustment, if you need this job advert in an alternative format or if you have any questions about the recruitment process, please contact Resourcing Ops for mid to senior roles, or the Early Careers Team for graduate and apprentice roles.Great journeys start here, apply now!

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Frequently asked questions

What types of Backend Engineer jobs are available in Belfast?

In Belfast, you can find a variety of Backend Engineer roles including positions focused on Java, Python, .NET, Node.js, and Ruby on Rails. These jobs range from junior to senior levels across industries like fintech, healthcare, and tech startups.

What skills are employers looking for in Backend Engineers in Belfast?

Employers typically seek strong proficiency in server-side languages such as Java, Python, or C#, experience with databases like PostgreSQL or MongoDB, knowledge of API development, and familiarity with cloud platforms like AWS or Azure.

Are remote or hybrid Backend Engineer roles available in Belfast?

Yes, many companies in Belfast offer flexible working arrangements including remote and hybrid roles to attract top Backend Engineering talent.

What is the average salary for a Backend Engineer in Belfast?

The average salary for a Backend Engineer in Belfast ranges from £35,000 to £60,000 annually, depending on experience, skills, and the employer.

How can I apply for Backend Engineer jobs in Belfast on Haystack?

Simply create an account on Haystack, upload your CV, and use our search filters to find Backend Engineer roles in Belfast. You can then apply directly through our platform or save jobs to apply later.