Job Title

Lead Full Stack Developer Rate: Up to 650/day (Outside IR35) Duration: 6 months initially Location: Hybrid - Milton Keynes / Remote Clearance: SC Cleared Overview An exciting opportunity for a Lead Full Stack Developer to join a small, high-performing tech company supporting a major UK government programme. You'll play a key role in the development and evolution of a cutting-edge, AI-enabled digital service used across multiple government departments. This role combines hands-on development with technical leadership, working closely with architects, product stakeholders, and client teams to deliver secure, scalable software solutions. Responsibilities Front End Design and build modern, responsive user interfaces Develop using React, TypeScript, JavaScript, HTML, CSS Drive strong UX and cross-browser compatibility Back End Design and develop APIs and services Build server-side logic using Java (Spring Boot) Contribute to overall application architecture Data & DevOps Design and maintain relational databases (PostgreSQL preferred) Implement CI/CD pipelines (e.g. GitHub Actions, Jenkins) Deploy and operate services in cloud environments (AWS, Azure or GCP) Use containerisation tools such as Docker Quality & Collaboration Lead and participate in code reviews Write unit, integration and end-to-end tests (JUnit, Testcontainers, Vitest, Storybook) Maintain clear technical documentation Work closely with product, architecture and delivery teams Embed security best practices (auth, access control, secure data handling) Essential Skills & Experience Strong experience delivering complex full-stack applications Commercial expertise in Java plus at least one other back-end language (ideally Python) Solid experience with React and modern front-end tooling Strong API design and integration experience Good working knowledge of Linux and Windows environments Proven problem-solver with strong analytical skills Experience with relational databases, ideally PostgreSQL Comfortable working in small, fast-moving delivery teams Able to commute to Milton Keynes as required TPBN1_UKTJ