Contract Node.js & React Engineer
6-month contract (extensions likely)
£400 per day – Inside IR35
60% Hybrid – Newcastle, London, Leeds or Blackpool

Opus is working with a leading consultancy delivering high-impact services for a UK Government department.
We’re looking for a Node.js & React Engineer with Nunjucks experience to help build and evolve accessible, high-volume digital systems.

What You’ll Be Doing*Building user-facing features using React & TypeScript
*Developing server-side functionality with Node.js
*Working with Nunjucks templating for government service patterns
*Supporting high-traffic, transactional systems
*Writing clean, test-driven code (TDD / Jest)
*Improving CI/CD pipelines and development automation
*Contributing to ever-greening and modernisation
*Ensuring WCAG-compliant accessibility
*Collaborating across multiple agile delivery teams
Required Experience*Strong JavaScript experience (frontend & backend)
*React with modern frontend practices
*Node.js
*Nunjucks templating experience
*TypeScript
*TDD and automated testing
*CI/CD tooling (GitLab CI, Jenkins or GitHub Actions)
*Experience delivering large-scale digital services
Nice to Have*CASA or GOV.UK Design System experience
*SQL / NoSQL databases
*Redis or similar caching tools
*API & microservices integration
*Cloud platforms (AWS or Azure)
*Docker / containerisation exposure
*SC eligibility (not mandatory)
Apply now or get in touch to discuss suitability and team fit.