Full-Stack Engineer - Cambridge

Job Description

We're hiring a Full-Stack Engineer to own the frontend, backend, and DevOps function for Neurotune, end to end, including the React app, the REST surface, the PostgreSQL schema, the background-job pipeline, the cloud infrastructure it all runs on, and the deployment.

You'll work alongside a senior application engineer who owns the desktop data collector and researchers — but the browser-and-server half of the product, plus the cloud it runs on, are yours to lead.You'll be the person who can take a feature from a UI mockup through the API contract, the database migration, the React form, the test suite, the Terraform apply, and out to production.

You'll be working in:

• A React + TypeScript SPA with a mature component library, scientific visualisation, a small state layer, and a real test suite. 
• An async-first Python service with Pydantic, raw SQL over an async PostgreSQL driver, multi-tenant data isolation, a background-task system, and OAuth + JWT auth.
• A managed cloud environment with Terraform for everything, managed compute and PostgreSQL, object storage, secret management, and a CI pipeline you own. 

What you'll do:

Frontend (≈ 40% of your time)

• Own the core web application: planning, study execution, and analysis surfaces.
• Design and ship scientific visualisations together with researchers
• Maintain the API client with its custom retry/auto-relogin behaviour.
• Own frontend quality: tighten linting/formatting, increase test coverage, and own the test setup and mock layer.

Backend (≈ 50% of your time)

• Own the REST surface: design new endpoints, own the response envelopes and Pydantic models, and evolve the public contract.
• Write raw async SQL (no ORM) and maintain the data model migration process.
• Own the multi-tenant per-tenant schema model
• Add and maintain background tasks
• Implement streaming responses and server-side cursors for large dataset endpoints.
• Work with JSONB + GIN indexes, and the streaming scientific-data metadata contract.

DevOps & Platform (≈ 10% of your time)

• Own the cloud infrastructure that runs the web app and services
• Own CI pipeline, deployment, release, security, observability and compliance posture for the cloud product

What you'll bring (must-have):

• 3+ years of professional full-stack experience owning production web applications end to end
• Solid React/TypeScript skills: hooks, suspense, concurrent features, strict mode, branded types, generics.
• Solid Python experience with an async web framework
• Production experience with Terraform (or similar), Docker and a major cloud — we run on GCP, but AWS/Azure experience is welcome.
• Hands-on experience with managed serverless compute, managed
• Postgres, object storage, secret management, and managed DNS.
• Security mindset: parameterised SQL, secret management, httpOnly cookies, HTTPS-only, XSS/CSRF.

Bonus points for:

• Multi-tenant SaaS experience (per-tenant schemas, row-level security, data isolation). 
• Plotly.js, D3.js, Observable, or another scientific/financial visualisation library.
• Medical device development, clinical, scientific, or other regulated- industry experience (HIPAA, ISO 27001, MHRA, GDPR).
• Familiarity with Tauri, or another webview-shell framework.
• GCP experience,
• CI/CD pipeline ownership: GitLab CI, or equivalent.

Other benefits include:

• Working on world-changing technology with leaders in the field
• Dynamic, innovative, passionate, entrepreneurial team
• Inclusive company culture
• Flexible hours (outside of core hours)
• BUPA medical healthcare insurance
• Competitive pension scheme
• Enhanced maternity leave
• Additional employee benefits