user interface designer jobs in Belfast

Do you enjoy designing hardware that genuinely pushes performance limits? Looking for a role where your work goes from concept to real-world impact? Want to be part of a small, expert engineering team building advanced technology products? Our client is a global technology innovator specialising in high-precision hardware and software systems used in demanding, real-time environments. With a...

Market Design Lead – Switching & Registration Who Are RECCo? We are an independent, non-profit organisation responsible for the Retail Energy Code — a key part of how the GB retail energy market is regulated. But we don’t just manage rules. We look ahead, not just react, helping the market change in the right way. We deliver secure digital services, clear governance, and practical solutions...

You will be expected to be present on site for critical design reviews, construction interfaces and commissioning stages.

You will sit at the critical interface between development, design, construction and commissioning, providing clear technical leadership and ensuring seamless integration across all project phases.

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...

Senior Product Design Engineer – 3fD About Us 3fD is a full service UK-based product design & manufacturing agency, we create compelling products that are technically engineered and delivered with manufacturing agility. Our success is built on a huge variety of projects and an impressive portfolio of clients. We are passionate about what we do and are looking for equally motivated individuals....

You will lead design initiatives that blend user needs, business goals, and technical feasibility—bringing clarity and innovation to complex industrial and agricultural workflows. Key Responsibilities Drive UX strategy and execution across digital platforms, from discovery to delivery.

JOB DESCRIPTION Join Kainos and Shape the Future At Kainos, we’re problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether we’re transforming digital services for millions, delivering cutting-edge Workday solutions, or pushing the boundaries of technology, we do it together. We believe in a people-first culture, where your ideas are valued,...

Mechanical Engineer Location: Horsham Salary: £35,000 – £45,000 An opportunity has arisen for an experienced Mechanical Engineer to join a growing design and manufacturing business specialising in precision rotary mechanisms for surveillance and fire-control solutions in the defence and high‑technology sectors. The role is ideal for an engineer who enjoys taking ownership of concepts and...

Reports to: Technology Director / Executive Sponsor Location: Remote with occasional travel to London (2 times a month) Contract: Full-time, permanent Base Salary: £70,000 – £80,000 location and experience dependent + 10% company bonus scheme and sales commission scheme Why This Role Exists Serve Legal is entering a new chapter: evolving beyond compliance auditing into AI enabled,...

Multi-Agent LLM Systems Remote (MUST BE IN EUROPE) We’re partnering with a venture-backed startup led by a founder who has built and taken two technology companies to IPO, now assembling a world-class team to tackle one of the most impactful problems in applied AI. The company is developing a voice-enabled AI copilot used by professionals to eliminate the friction from documentation and...

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...

As a Full Stack Engineer with expertise in .NET and Vue, you'll take on a hands-on role in building web applications while working vertically in both the frontend and the backend. Your responsibilities will involve designing, developing, and fine-tuning web applications, using .NET 6+, MediaTR, EF.Core and VueJS 2/3 to create engaging and user-friendly interfaces. You'll work closely with the...

Lead the design of high-integrity PLC control systems at the heart of the UK’s most regulated and safety-critical environments. Senior/Lead PLC Control systems engineer 12 month contract – rates DOE Office-based with a Hybrid working scheme. Inside IR35 2 openings available in either Warrington, Cumbria and Stockton Role Description We are seeking an experienced PLC Control Systems...

Senior Robotics Engineer Want to work with a team who are building a software platform that lets roboticists deploy robot applications faster? Robotics needs better developer tools. This team is building them. A UK based start-up is looking for a Senior Robotics Engineer to join their team and support the development and integration of robotics capabilities across their platform. The role...

UX/UI + Frontend Developer Thursday Salary: £40-£50K Thursday is a singles IRL events company that organises singles events, trips, dinners, activities, education and media. We're building technology to scale our operations and enhance the experience for our members. We value equality and inclusion as core principles - our diverse audience deserves technology that serves everyone well, and...

You should be comfortable with most of our core technologies:

AI Engineer – Rapidly Growing AI Company I'm partnered with a fast-growing AI company that is scaling its engineering team and looking for AI Engineers who want to build next-generation intelligent systems used by major enterprises across the world. This is an outstanding opportunity for someone who loves solving real product problems with modern AI, enjoys working end-to-end across the stack,...

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 Overview Citi is a world-leading global bank. We have approximately 200 million...

You will be joining a fast growing technology company building a production grade platform that enables advanced AI driven products.

You will have real ownership, influence over technical decisions and the space to build things the right way.

You will be trusted to take responsibility across the stack, including

You will have a truly global reach, which will provide you with new experiences and development opportunities right here in Belfast's iconic Titanic Quarter. Engineer the future of global finance. At Citi, our Tech team doesn't just support finance - we are helping to redefine it.