Principal Product Engineer

Location:

Nine Elms, London. Full time, hybrid with at least 3 days a week on site.

You’ll need the right to work in the UK and be based in London. We are not able to offer visa sponsorship for this role.

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, from app users to frontline staff to store workers. We are relentlessly focused on delighting our customers.

We are backed by the world's leading investors, and our team has scale-up and exit experience at companies such as Amazon, Deliveroo, Tesco, Stuart, and Just Eat. If you're ready to help build the world's most customer-focused company, get in touch.

These five principles describe what great looks like y are the single framework we use across performance reviews, growth conversations, and leadership expectations.

• Creating Magic
• Taking Ownership
• Raising the Bar
• Winning Together
• Delivering with Speed

We are an AI-first company

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. That's the part we love. We need engineers who are curious, energetic, and thrive at the front line of both.

• Build a world-class customer experience across the stack. Ship across backend, web, and infrastructure, and into mobile when features cross over.
• Bring AI into how we build. Use AI in your daily work. Share patterns that help the team move faster, and learn from what others discover.
• Lead how AI shows up in our product. Set the direction on where AI creates real customer value, prototype the hardest bets yourself, and bring the team with you.
• Own delivery end-to-end. Pick up a problem, design the solution, ship the work wherever the feature lives, and see it through to production.
• Own on-call. Be on the rotation, and stand behind what you ship in production.
• Keep production fast and trusted. Watch latency, harden release processes, and protect what customers rely on.
• Set the technical direction. Own the architecture, patterns, and standards other engineers build on — across the product, not just your own work. Lift the people around you.

• Deep engineering experience. 10+ years building production software.
• Full-stack range. Comfortable across backend, web, and infrastructure.
• Strong fundamentals. Confident with Type Script, GraphQL, and SQL. At home in NestJS (or a similar Node.js framework) and React.
• Cloud and Dev Ops minded. Comfortable across GCP or a similar cloud, CI/CD, observability, and modern infrastructure tooling.
• Use AI daily. AI assistants are part of how you build. You bring back patterns that help others get more out of them too.
• Think product, not just code. You measure your work by what changed for the customer, not the lines of code shipped.
• Production minded. Solid grasp of API design, observability, scaling, reliability, and security.
• Care about craft. Clean APIs, attention to detail, and how the system feels to work in.
• Comfortable in uncertainty. You move forward when the path isn't clear, instead of waiting for someone to define it.
• Test as you build. Automated tests are how you ship code you trust.
• Passionate about execution. Curiosity, energy, and a habit of moving things forward.
• Excellent communicator. Clear in how you write and speak, and you love sharing what you learn.
• Force multiplier. Your impact shows up in other engineers' work - through the patterns you set, the reviews you give, and the people you grow.