Full Stack Engineer Jobs in Belfast

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Full Stack Engineer Jobs in Belfast

Overview

Looking for Full Stack Engineer jobs in Belfast? Explore top IT opportunities in one of Northern Ireland’s fastest-growing tech hubs. Whether you’re a seasoned developer or looking to advance your career, our Belfast job board offers the latest full stack engineering roles with leading employers. Start your next tech career move today!

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Belfast (with occasional travel in the UK, Ireland and the EU) About Us Causeway Sensors is a spin-out company from Queens University Belfast, developing game-changing nanotechnology that can plug into bioreactors to monitor biomanufacturing in real-time. We are a forward-thinking organisation dedicated to delivering impactful outcomes through a small yet effective team. Our focus is on strategic excellence and fostering a collaborative work environment where everyone contributes to success. We are now looking for a Software Developer to join us on an initial 12-month contract with the view to becoming permanent, working 37.5 hours per week. The Benefits

Salary of £30,000 £38,000 per annum, depending on experience

23 days annual leave + 10 Bank Holidays/Closures

Generous pension contributions If youre an enthusiastic and ambitious developer with skills in Python, GitHub and SQL, and a strong grounding in STEM, this is the perfect opportunity to gain professional expertise and take your exceptional talent to the next level. Youll have the chance to work at the forefront of our product development and products which are themselves at the cutting edge of nanotechnology. Gaining exposure to genuinely exciting tech and thinking will aid your own development and ensure your skills exceed those of your peers and position your career on an upward trajectory. Whats more, youll discover a small, growing team of experts who will support and guide you to ensure you achieve your potential and, in turn, help us to reach ours. Its an exciting time to join Causeway Sensors, and we cant wait to meet you. The Role As a Software Developer, you will help build the software that powers our TITAN biosensor platform. Specifically, youll be building the applications that control the hardware and enable further development whilst embedded within our team of experts, making you a vital part of the process. Working closely with the biological research team, youll design intuitive user interfaces, translate lab workflows into functional software, and develop robust data analysis pipelines using Python, pandas, matplotlib, and related libraries. Youll even have the chance to take ownership of small development projects from concept to deployment, contributing to GitHub-based workflows and helping shape the platforms future. Additionally, you will:

Integrate databases and ensure research data is captured, organised, and accessible

Contribute to code reviews and maintain clear documentation

Work with researchers to understand and support experimental processes About You To be considered as a Software Developer, you will need:

At least one year of software development experience (a placement year will be accepted)

Experience with Python libraries such as tkinter, pandas, and matplotlib

Experience using GitHub or similar version control platforms

Strong proficiency in Python

Familiarity with SQL or other database systems

The a bility to design and build user-friendly applications

Good problem-solving skills and strong curiosity

Clear communication skills and a collaborative approach

A degree or equivalent in a STEM subject Other organisations may call this role Python Developer, Application Developer, Software Programmer, Software Engineer, Python Programmer, Software Analyst, or Product Developer. Webrecruit and Causeway Sensors are equal opportunities employers, value diversity and are strongly committed to providing equal employment opportunities for all employees and all applicants for employment. Equal opportunities are the only acceptable way to conduct business and we believe that the more inclusive our environments are, the better our work will be. So, if youre ready to make an incredible impact on your career as a Software Developer, please apply via the button shown. This vacancy is being advertised by Webrecruit. The services advertised by Webrecruit are those of an Employment Agency. TPBN1_UKTJ

Senior Technical Lead (Project Delivery)

Codec Systems Limited

Description Job Specification Role Title : Senior Technical Lead (Project Delivery) Location : Dublin, Ireland or UK (Hybrid / Client Site) Department : Application Modernisation & Enterprise Integration About Codec Codec is an award-winning digital transformation company with big growth ambitions. We are an established full-stack IT consultancy, a local alternative to the Big 4, headquartered in Dublin with offices in Galway, Belfast, London, Poland, and Germany. We are growing rapidly and have crafted a clear vision of the future, developing our own IP to complement the Cloud stacks from Microsoft. As we continue to win large-scale government and enterprise contracts, we need strong technical leadership on the ground. The Role Codec is seeking a Senior Technical Lead to spearhead the delivery of large-scale, long-term enterprise projects (12+ months). This is a hands-on, client-facing delivery role . You will not just be an architect in an ivory tower; you will be the “Captain of the Ship” for a dedicated client engagement. You will serve as the primary technical authority on the ground, leading a squad of developers to deliver robust Azure-based solutions while remaining hands-on with the code. Key Responsibilities Project Delivery LeadershipTechnical Ownership: Act as the Lead Architect/Developer for a dedicated client project. You own the technical roadmap, architecture, and code quality for that specific engagement. Client Advisory: Serve as the primary technical point of contact for the clients internal IT and stakeholders. Explain technical decisions, manage scope creep, and build trust through competence. Hands-on Execution: This is a builder role. You will spend a significant portion of your time coding (C#, .NET, Azure, Angular/Blazor), setting the pace for the team and handling the most complex integrations yourself.Team Direction (Project Level)Squad Leadership: Direct the daily technical work of the developers assigned to your project. Assign tasks based on capability, conduct code reviews, and unblock the team when they hit technical walls. Quality Control: Ensure that what goes into the clients environment is production-ready. You are the final gatekeeper for code quality, security, and performance on your project.Solution Design & IntegrationArchitecture Implementation: Translate high-level designs into working software. Make the granular decisions on how to implement Azure Functions, Service Bus patterns, and Dataverse integrations within the clients specific constraints. Environment Management: Take responsibility for the project’s DevOps maturity, ensuring CI/CD pipelines and environments (Dev/Test/Prod) are correctly managed and secured.Skills, Knowledge and ExpertiseRequired Skills & ExperienceConsultancy Experience: Proven experience acting as a lead consultant or technical lead on long-term client projects. You understand the difference between internal development and billable client delivery. Full-Stack Seniority: 8+ years of development experience with deep expertise in the Microsoft Stack (C#, .NET, Azure). You must be capable of leading a team by example. Client Facing Communication: Excellent ability to manage client expectations, explain technical risks to non-technical project managers, and navigate complex stakeholder environments. Azure Expertise: Strong working knowledge of Azure PaaS (App Services, Functions) and integration patterns (Service Bus, Event Grid). Delivery Focus: A track record of shipping software. You are not just an architect who draws diagrams; you are a lead who pushes code to production.Location & EligibilityHybrid Working: Codec supports hybrid working; however, on-site working will be required where expected by customers, and attendance at Codec offices is expected regularly. Right to Work: Candidates must be currently located in Ireland or the UK with existing Right to Work approval.About Codec Established over 40 years ago, Codec is a multi-award-winning Microsoft Solutions Partner, trusted by public and private sector organisations to deliver impactful digital transformation. With offices in Dublin , Belfast , Cologne , and across Germany , our team of over 300 experts specialises in harnessing the full potential of Microsoft technologiesincluding Dynamics 365 , Power Platform , Azure , and Copilot to drive innovation, automation, and operational excellence. Codec combines deep industry expertise with a proven track record to help organisations unlock the power of AI and modern cloud solutionsThough originally best known as a hardware reseller, since 2010 Codec has focused on building an outstanding software consulting business with a team of experts implementing enterprise solutions using products from Microsoft and Oracle. Our customer base, revenues and average contract values have grown steadily year on year and we continue to invest in the provision of new product and service offerings.Our team is a careful mix of recent graduates and experienced professionals from a variety of diverse cultural backgrounds. We are a melting pot of seasoned consultants supported by the best talent from the local universities. We have a thriving placement student academy and graduate recruitment programme which grows year on year.This company is an equal opportunities employer

Agent Engineer

Adepta Partners Limited

The RoleA leading service provider in their market is looking to shape the strategic direction and roadmap of theircore technology platforms. These platforms act as the foundational starting point that enable the delivery of strategic business outcomes.This team ensures that platform services are continuously improved, aligned with business needs, and prioritised effectively. By designing, building and managing these platforms, you will help simplify and enhance the company’s technology landscape-making it more efficient, scalable and fit for purpose.What you’ll be doing

You will design, develop and maintainintelligent agents and bots to improve efficiency and solve problems across the company.

Deliver agents developed internally in line with company objectives, policies and standards as well as work as part of a cross functional team tasked withintegrating all agents and bots into production systems and processes.

Plan, design and prototype intelligent agents and bots that can reason and act to solve complex problems.

Develop autonomous systems powered byLarge Language Models (LLMs)

Integrate agents and bots to the tools, data and services needed to operate efficiently.

Work with stakeholders focused on AI platforming, software engineering, data governance etc., to ensure solutions are compliant and secure.

Become the focal point for all matters related toagent engineering.

What you will bring

6+ years IT experience, with at least 3 years experience in developing intelligent agents and bots.

Ideally have experience in intelligent agent development with Microsoft Power Platform

A strong level of expertise in creating prompts to guide LLMs and ensure desired agent behaviour.

Knowledgeable of current IT trends.

Proven track record of managing projects and changes, gathering requirements and working with stakeholders.

Call to ActionIf this role seems of interest then we’d love to hear from you!Contact James O’Donoghue atAdepta Partners for a confidential discussion or click Apply to learn more.Skills: Business Intelligence large language models intelligent agents chat bots agent engineeringBenefits: Hybrid private medical insurance Health & Wellbeing Services Pension Plan Income Protection Life Assurance

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 Full Stack Engineer jobs are available in Belfast?

Belfast has a growing tech scene with Full Stack Engineer roles ranging from startups to established companies, including positions focused on web development, cloud technologies, and enterprise software solutions.

What skills are most in demand for Full Stack Engineers in Belfast?

Employers in Belfast typically look for expertise in JavaScript frameworks (like React or Angular), backend technologies (such as Node.js, Python, or .NET), databases (SQL or NoSQL), and experience with DevOps or cloud platforms.

Are there remote or hybrid Full Stack Engineer positions available in Belfast?

Yes, many companies in Belfast offer remote or hybrid work options for Full Stack Engineers, reflecting the increasing flexibility in the tech industry.

What is the average salary for a Full Stack Engineer in Belfast?

Salaries can vary based on experience and company size, but the average Full Stack Engineer in Belfast typically earns between £35,000 and £60,000 per year.

How can I apply for Full Stack Engineer jobs through this job board?

You can browse the listings, filter by location and role, then submit your application directly through our platform by uploading your CV and cover letter.