Developer - Node.js/React

Our client is developing an AI-powered wellbeing and recovery app and is seeking an MSc-level developer to help transform a validated working prototype into a production-ready MVP. This role is ideal for someone who wants real ownership, modern JavaScript experience, and a meaningful project to showcase in their portfolio.

This is a genuine greenfield-to-production engineering role - not maintenance. The prototype has already been user-tested and iterated extensively. Your focus will be on engineering quality: robustness, security, scalability, and accessibility.

The Role

You'll take an existing functional React prototype and rebuild it using modern tooling, clean architecture, and best practices. Your work will include:

• Rebuilding the UI into modular, maintainable React components
• Setting up a modern framework (Vite or Next.js)
• Refactoring state management (use Reducer or Zustand)
• Styling with Tailwind CSS
• Implementing routing (React Router or Next.js routing)
• Building a lightweight Node.js backend
• Adding authentication
• Integrating a real database (Supabase/PostgreSQL)
• Improving accessibility to WCAG 2.2 standards
• Deploying to Vercel
• Optional: integrating LLM/AI APIs

You'll be working from a functioning prototype - the goal is production-grade engineering, not product discovery.

Essential Skills

• React (hooks)
• JavaScript (ES6+)
• Node.js fundamentals
• REST APIs
• CSS & responsive design
• Git/GitHub

Nice to Have

• Next.js
• Supabase/PostgreSQL
• Accessibility (WCAG 2.2)
• Experience with LLM/AI APIs
• TypeScript
• Awareness of UK health data considerations (NHS DSPT, GDPR, privacy-by-design)

• Flexible hours that fit around your MSc
• Real ownership of a full-stack product
• Work on meaningful digital health technology
• A strong portfolio project (React, Node, DB, AI)
• Opportunity to shape a production-grade MVP from a validated prototype