UI Developer jobs in Northern Ireland

Job Description Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview T he Department Developer Engineering is a function of the CTO organisation. Our...

React Native Developer (Tech for Good) (Social Education Learning) Remote Work 3-month Voluntary Work Experience Opportunity London Are you a React Native developer with mobile app experience, and a desire to put your skills toward positive social impact? Want hands-on experience designing and building intuitive mobile interfaces for learners around the world? If yes, this could be the...

You will collaborate closely with developers, product managers, and other stakeholders to translate user insights and business requirements into functional, elegant interfaces that enhance usability and customer satisfaction. Key Responsibilities

Software Developer (Web & Internal Tools) Remote-first | UK-based up to £50,000 PA Dependent on experience We’re supporting a well established UK adventure business that has recently brought its website development in-house and is now modernising internal systems and tooling. This is a hands on role in a small, trusted tech team, working across a customer facing web platform and the internal...

Web Developer Location: Remote Role Overview Our clients are seeking an experienced Web Developer to build, maintain, and enhance their web-based platforms. The role involves working closely with internal teams and third-party partners to deliver robust, scalable solutions that support MTS’s growing digital and e-commerce footprint. Key Responsibilities - Collaborate with technical and...

UI Engineer - React | TypeScript | Next.js | 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...

A renowned technology company based in Northern Ireland is seeking a passionate software engineer to develop customer-focused applications using Angular and Java. The ideal candidate will have 4+ years of experience, strong communication skills, and a collaborative mindset. This role includes delivering high-quality solutions, participating in Agile practices, and working closely with product and...

Join Marmalade Game Studio – Creators of Top-Selling Digital Board Games At Marmalade Game Studio, we bring the world’s best-loved board games to life on mobile, PC, and console. From Monopoly to Ticket to Ride, we’re passionate about crafting rich, high-quality gaming experiences that players of all ages can enjoy. We’re currently looking for a Backend Programmer to join our talented team. If...

You should be comfortable with most of our core technologies:

🚀 Senior Full-Stack Engineer – TypeScript / React / AWS 💰 Up to £80k | Fully Remote (UK) 💻 Tech Stack: TypeScript, Node.js, React.js, AWS ✅ Slight backend lean We’re on the hunt for a hands-on Senior Engineer to join a fast-moving team delivering real, production grade systems. This isn’t R&D or proof-of-concept work, they’re shipping cloud-native, AI-enabled products that customers actually...

You will design, develop, and maintain our platform’s backend infrastructure, focusing on multi-tenant architectures, security, and efficient LLM integration. This role requires a strong understanding of Python web frameworks, cloud services (particularly AWS), and modern AI approaches including working with agentic architecture.

D365 Architect | Contract | Fully remote (UK-wide) We are seeking a highly experienced and versatile Dynamics 365 CE Solution Architect to lead the design and implementation of an enterprise-level CRM transformation. This is a unique "hybrid" architect role; while you will be the technical lead for architectural decisions and stakeholder management, you must be a hands-on practitioner willing to...

SOFTWARE ENGINEER REMOTE (OPTION TO RELLOCATE) £110K + EQUITY THE COMPANY This innovative AI startup is redefining safety and reliability in AI models. While competitors like GPT and DeepMind struggle with hallucinations and illegal content generation, this company adds safety control layers to ensure AI outputs are trustworthy and compliant. Working with high-profile, they’re building AI...

Championing User-Centered Design The Senior Product Experience Design Manager will champion user-centered design principles and oversee the development of intuitive and visually compelling user interfaces. Key responsibilities involve establishing scalable design systems, performing rigorous quality assurance checks, and continually optimizing internal workflows for maximum efficiency and...

You will be joining a team of 70 professionals with wide variety of skills and competencies across a highly technical data landscape. We have created a cohesive group of experts that thrive on delivering complex services to our clients.

ServiceNow Junior Admin/Junior Developer We are Grant Thornton. We go beyond business as usual, so you can too. Grant Thornton Advisors LLC and Grant Thornton Ireland (GT) have recently come together to form a powerful multinational, multidisciplinary platform that delivers premier advisory, tax, and independent audit services. With $2.7 billion in revenues and nearly 60 offices across the...

You should have proven experience developing front-end applications using modern JavaScript frameworks, with a focus on React.

Job Description Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview We're seeking a Senior Frontend Engineer with a strong React/TypeScript background,...

Freelance UX Developer - Lisburn - £200/day - Immediate Start We're looking for a Freelance UX Developer to join a client project based in Lisburn. You'll play a key role in shaping and delivering intuitive, user-focused digital experiences, working closely with designers, developers, and product stakeholders. This is a hands-on role where you'll help, alongside a Senior UX Engineer, translate...

You will have created the system architecture, and established key relationships - Lead the architectural design of the system that takes into consideration our future near real-time requirements, complex data integration, and scalability.

You will have created architectural diagrams that stakeholders can understand.

You will have delivered the key parts of the platform reaching over 1,000 users.