Principal Product Engineer at Zapp | England | Rezi

Principal Product Engineer at Zapp

Principal Product Engineer

Zapp · England

2 weeks ago

Principal Product Engineer

Zapp · England

17 days ago
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About the Role

Join Zapp and take full lifecycle ownership of the apps our customers use every day. We're building a world-class experience across iOS, Android, and web, and you'll help us get there. Quick commerce moves fast and lives in the real world. AI is changing how we build it. We need engineers who are curious, energetic, and thrive at the front line of both.

Responsibilities

  • Build a world-class customer experience across the stack, shipping across backend, web, and infrastructure, and into mobile when features cross over.
  • Integrate AI into the build process, using AI in daily work, and sharing patterns to help the team move faster.
  • Lead the integration of AI into the product, setting direction on where AI creates customer value, prototyping bets, and bringing the team along.
  • Own delivery end-to-end, from problem identification and solution design to shipping and production support.
  • Participate in the on-call rotation and support shipped production work.
  • Maintain production speed and trust by monitoring latency, hardening release processes, and protecting customer-reliant systems.
  • Set the technical direction by owning architecture, patterns, and standards for the product.
  • Mentor and uplift team members.

Requirements

  • Right to work in the UK and based in London.
  • Deep engineering experience with 10+ years building production software.
  • Full-stack range, comfortable across backend, web, and infrastructure.
  • Strong fundamentals in TypeScript, GraphQL, and SQL.
  • Experience with NestJS (or a similar Node.js framework) and React.
  • Cloud and DevOps mindset, comfortable with GCP (or similar cloud), CI/CD, observability, and modern infrastructure tooling.
  • Daily use of AI assistants in the building process, with a willingness to share effective patterns.
  • Product-oriented thinking, measuring work by customer impact.
  • Production mindset with a solid grasp of API design, observability, scaling, reliability, and security.
  • Attention to craft, including clean APIs, detail, and developer experience.
  • Comfortable operating in uncertainty and moving forward without a fully defined path.
  • Proficiency in building with automated tests.
  • Passionate about execution, with curiosity, energy, and a habit of driving progress.
  • Excellent communication skills, both written and verbal, with a passion for sharing knowledge.
  • Acts as a force multiplier, impacting other engineers through patterns, reviews, and growth.
  • Does not require a fully defined process or large team to perform optimally.
  • Does not prioritize technical perfection over customer needs.
  • Does not stall when the path forward is unclear or wait for direction.
  • Willing to work across unfamiliar parts of the stack.

Skills

  • TypeScript
  • GraphQL
  • SQL
  • NestJS
  • React
  • GCP
  • CI/CD
  • Observability
  • API Design
  • System Design
  • AI Tooling

Location

  • Nine Elms, London

Work Type

  • Full-time
  • Hybrid

Experience Level

  • 10+ years

Salary/Compensations

  • £135,000 – £175,000 base salary

Benefits

  • Equity package
  • 25 days of holiday per year, plus all bank holidays
  • Private health insurance
  • Extended sick pay
  • Extended maternity or paternity leave
  • Cycle to work scheme

About the Company

  • Zapp is building the future of convenience with a full stack approach to on-demand essential items, 24/7, delivered in minutes.
  • Customer obsession is at the heart of everything we do.
  • We are relentlessly focused on delighting our customers.
  • Backed by world's leading investors, with team experience from companies such as Amazon, Deliveroo, Tesco, Stuart, and Just Eat.
  • We are an AI-first company, building intelligent systems.
  • We expect every engineer to embrace and actively shape how AI changes what we ship and how we ship it.