Serve Legal
AI-Native Software Engineer | Serve Legal | Fully Remote (UK & International)
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AI-Native Software Engineer | Serve Legal | Fully Remote (UK & International)
Salary up to £75K depending on experience and location (salary benchmarked for the country of residence)
Serve Legal is rebuilding its Age Verification platform from the ground up — moving off a legacy, externally-built system onto a modern, in-house stack we own outright. We're looking for an AI-Native Software Engineer to help lead that rebuild, and to keep building the platform and wider product ecosystem once it's done.
This isn't a role for someone who dabbles with Copilot now and then. You'll work spec-first, using AI coding agents (Claude Code, Codex, OpenCode) as your primary way of writing and refactoring code — while owning the review, testing, and verification of everything they produce. Strong engineering fundamentals matter just as much as AI fluency: you need the judgement to know when AI output is wrong, risky, or cutting corners.
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What you'll be doing
- Migrating the AV platform domain-by-domain using a strangler-fig approach, alongside the Technology Director and CTO
- Writing specs as the source of truth, then building from them with AI coding agents
- Building a library of reusable AI skills/slash commands so the team's AI-assisted workflow is consistent and improving
- Proving parity between old and new systems with automated tests, contract tests, and Playwright — not manual checking
- Building and maintaining services on our core stack: NestJS, Drizzle, PostgreSQL/PostGIS, AWS
- Moving into ongoing product development across our wider connected app ecosystem once the rebuild lands
What we're looking for
- Strong hands-on Node.js/TypeScript back-end engineering (NestJS or equivalent), with real first-principles reasoning about system design
- Solid SQL/PostgreSQL knowledge and comfort evolving existing schemas safely
- Practical AWS experience (Cognito, S3, SQS, Step Functions, or similar)
- Real hands-on experience using AI coding agents as a core part of your workflow — not just for snippets
- Understanding of unit, contract, and end-to-end testing (e.g. Playwright)
- Comfort with spec-driven development and API design/versioning
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Nice to have: legacy migration/replatforming experience, Drizzle/Prisma, regulated environments, RFC/technical design writing, multi-app ecosystems (SSO, shared libraries, event-driven services), start-up experience, agentic/parallel AI workflows.
This role is fully remote, and we welcome applications from candidates based outside the UK.
📩 Interested? Apply now or get in touch to find out more.
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