UI Developer - React

Help build a digital service supporting the transformation of the UK's customs landscape. Synergize Consulting is seeking two UI Developers to join the an important critical government programme, developing secure, accessible and user-focused services for traders, online marketplaces and carriers.

We welcome applications from experienced developers at different levels. Candidates will be assessed against SFIA 4 or SFIA 5, based on their skills, experience and responsibilities. The opportunity You will build intuitive interfaces that help users meet their customs obligations, working within a team delivering a secure and scalable government service.

Your responsibilities will include

Developing responsive interfaces using React and Next.js. Creating HTML wireframes and prototypes to explore and validate user journeys. Using API mocking frameworks to support development and testing. Writing clean, secure, reusable code using a test-driven approach.

Contributing to coding standards, code reviews and continuous improvement. Supporting live services and investigating production issues. Sharing knowledge and mentoring colleagues where appropriate to your level. What we're looking for Strong commercial UI development experience.

Hands-on React and Next.js expertise. HTML wireframing and prototyping skills. Experience using API mocking frameworks. A commitment to software quality, testing and user needs. Clearance: BPSS required, with a minimum of three years' UK residency.

Previous government digital delivery or accessibility experience would be beneficial. Apply with your latest CV, availability and rate expectations by 10 November 2026. ...

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