Lead Full-Stack Developer

New Yesterday

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 compatibilityBack End

Design and develop APIs and services
Build server-side logic using Java (Spring Boot)
Contribute to overall application architectureData & 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 DockerQuality & 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
Apply
Location:
Milton Keynes
Salary:
£600 - £650 /day
Job Type:
FullTime
Category:
Public Sector

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