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# UI Developer

- **Company:** Datasource
- **Location:** London, United Kingdom (Remote available)
- **Salary:** £106,600 - £137,800
- **Contract:** Temporary to permanent
- **Skills:** Application Programming Interfaces (APIs), Design of User Interfaces, Secure Coding, Systems Integration, Website Wireframe, Test-Driven Development (TDD)
- **Published:** November 4, 2026
- **Apply:** https://www.datasourcerecruitment.co.uk/jobs/ui-developer/

## About the Role

Our client is looking for two UI Developers to join a high-profile Public Sector programme delivering a new digital service . You'll need solid NextJS and React experience along with a strong grasp of UI development best practices. There are two positions available at different seniority levels, so get in touch quickly!, Below is a list of Key Skills required for a UI Developer, however you will not be expected to have everything:

· Proven UI development experience in a professional environment.

· Hands-on experience with NextJS and React development.

· Ability to produce HTML wireframes for UI design and prototyping.

· Experience working with API mock frameworks.

· Strong understanding of secure coding practices and test-driven development.

· Ability to write clean, well-structured code that meets user needs.

· Experience coaching or supporting more junior developers.

·

The client would also like to see some of the below, but this is not essential:

· Experience working on government or public sector digital programmes.

· Familiarity with customs, tax or border systems integration.

· Experience delivering services within an agile delivery environment.

## Description

· Design and build clean, secure, well-tested UI code following a test-driven approach.

· Develop reusable, open-by-default code that others can easily pick up and work with.

· Create HTML wireframes to support design and prototyping activities.

· Implement and work with API mock frameworks during development.

· Follow and contribute to best practice coding guidelines across the team.

· Operate and monitor the services you build, identifying and resolving issues.

· Coach and mentor junior developers within the team.

· Contribute to a scalable, user-centric digital service integrated with customs and border systems.