Senior Full-Stack Engineer — TypeScript

WHAT YOU'LL DO

• Build and maintain full-stack applications using TypeScript, Next.js and NestJS.

• Own changes from application code through database, deployment and production verification.

• Establish reusable patterns, libraries and guardrails so teams don't have to solve the same engineering problems repeatedly.

• Plan the structure of changes before they are merged, and enforce standards through automated checks and AI agents in the development lifecycle rather than manual review alone.

• Build the test harness that turns analysts' acceptance criteria into automated checks that keep running after release.

• Review applications and code produced with AI-assisted development tools.

• Identify architectural, security, data integrity and maintainability issues that may not be obvious to non-engineers.

• Refactor or redesign implementations when the generated solution is not appropriate.

• Review database schemas and migrations before they reach production, working with the data architect, who owns the data model.

• Design reliable integrations with internal systems and third-party APIs.

• Improve testing, CI/CD and production verification.

• Debug production issues across systems you may not have originally written.

• Work closely with the person responsible for overall architecture and technical direction.

WHAT WE'RE LOOKING FOR

Must have

• Strong TypeScript fundamentals.

• Solid production experience with Next.js / React.

• Strong backend engineering fundamentals.

• Good understanding of PostgreSQL, schema design and database migrations.

• Ability to read and understand unfamiliar code quickly.

• Strong code-review skills beyond formatting and style.

• Ability to recognise poor architecture even when the code appears to work.

• Understanding of authentication, authorization and application security.

• Comfortable deploying and operating your own applications.

• Comfortable with Docker and CI/CD.

• Good SQL skills.

• Experience integrating third-party APIs.

• Ability to debug production systems and trace problems across multiple components.