Staff AI Developer Productivity Engineer

Website Equals Money

Money movement made simple.

Who you are

  • 8+ years in software engineering with a track record of building internal developer tooling/DevEx (CLI/IDE plugins, bots, internal services or web apps)
  • Strong proficiency in TypeScript/Node.js, C#/.NET and front-end experience with React/Next.js
  • Hands-on LLM integration: prompting, tool/function calling, retrieval (embeddings/vector stores) and basic evaluation of quality
  • Solid understanding of CI/CD, test strategy and code-quality tooling; able to design fast inner loops and reliable pipelines
  • Product mindset: discovery interviews, hypothesis-driven experiments, before/after evaluation and clear business cases
  • Excellent communication and influence skills; comfortable enabling teams via docs, workshops and remote office hours
  • A role model for our values:
  • Make it happen
  • Succeed together
  • Be the customer
  • Go beyond

Desirable

  • Experience administering/rolling out AI coding tools (Copilot, Cursor) and code search
  • Familiarity with structured/agentic AI workflow frameworks for multi-step tasks
  • Observability for developer platforms (metrics, tracing, dashboards) and performance tuning of AI workloads
  • Evaluation techniques for LLM output quality (human-in-the-loop, rubric scoring, golden datasets)
  • Experience with GitHub, Slack, Notion and Retool
  • Background in fintech/payments or other regulated domains

What the job involves

  • This is a staff-level, hands-on role at the intersection of Developer Productivity, Developer Experience (DevEx) and AI
  • You’ll accelerate a 100+ engineer organisation by identifying bottlenecks across the developer lifecycle and build and ship internal tools that measurably improve delivery speed and quality
  • You’ll operate with an AI-first mindset: rapidly experiment with cutting-edge AI technologies and agentic flows to see what’s possible today, map the frontier and forecast capabilities likely to become viable in the next 3-6 months
  • When AI isn’t the right fit, you’ll pragmatically fall back to conventional solutions
  • You’ll self-manage discovery, roadmap and backlog; run short, data-driven trials and productionise solutions which work
  • You’ll partner closely with Engineering and DevOps teams to ensure changes integrate cleanly into existing workflows
  • AI-first discovery roadmap – Interview engineers, analyse telemetry and prioritise the highest-leverage opportunities across coding, review, testing, releases and knowledge flows
  • Set baselines and target deltas and maintain a transparent backlog/roadmap grounded in measurable outcomes
  • Ship internal tools – Build and maintain AI-augmented dev tools across IDE/CLI, GitHub, Slack, Notion, Retool and internal web apps that reduce manual effort and cycle time
  • Agentic flows across the SDLC – Design structured, agentic workflows (including MCP and tool-use with human-in-the-loop gates) to improve code authoring/review, test creation/selection and the release, incident response and onboarding processes
  • Frontier scouting & evaluation – Continuously experiment with cutting-edge AI models, frameworks and runtimes; run short, hypothesis-driven pilots with clear success criteria and developer-fit assessments; productionise successful approaches
  • Automation pipelines – Implement LLM-assisted and AST-based code-mod workflows for migrations, boilerplate generation, test creation and docs updates
  • Enablement & change management – Drive adoption with playbooks, golden prompts, demos, office hours and a champions network across build teams; measure usage and satisfaction and iterate
  • Measurable impact – Reduced cycle time for new features
  • Quality & reliability – Improved stability; fewer defects and incidents attributable to code changes
  • Adoption & enablement – Growth in weekly active users of AI and other dev tools; strong satisfaction with guidance, prompts and enablement materials
  • Developer satisfaction – Higher engineer NPS and engagement
  • Operational excellence – Well-maintained internal tools with monitoring, docs and responsive support; clear deprecation paths for experiments that don’t meet the bar

Company benefits

  • Contributory pension
  • Life assurance
  • Health insurance through BUPA
  • Our Employee Assistance Programme offers a 24/7 confidential advice line for health, bereavement and other areas of support
  • 25 days holiday per year + your birthday off
  • We are members of the cycle to work scheme
  • We offer Season Ticket Loans
  • Free onsite Nuffield Health gym & pool (London) and discounted gym membership elsewhere
  • Interbank currency rates on travel money and international transfers
  • Opportunities for progression, development and learning new skills
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