Then Just Eat Takeaway.com might be the place for you. We’re a leading global online food delivery platform, and our vision is to empower everyday convenience.
Whether it’s a Friday-night feast, a post-gym poke bowl, or grabbing some groceries, our tech platform connects tens of millions of customers with hundreds of thousands of restaurant, grocery and convenience partners across the globe.
We are looking for a Senior Web Engineer to join our cross-functional team dedicated to powering partner loyalty programmes across Just Eat Takeaway.com.
In this role, you will focus on scaling and evolving our core partner loyalty offerings, from foundational initiatives like Stampcards to our newly launched Reorder Rewards programme. You’ll collaborate closely with product and engineering teams across the business to deliver high-impact loyalty mechanics and roll these experiences out seamlessly to customers and restaurant partners across all of our global markets.
As a Senior Web Engineer, you will drive our frontend architecture, write scalable and thoroughly tested code, and mentor engineers while challenging the team to raise the technical bar. Cross-team collaboration and inner-sourced software development are our standard ways of working, giving you the opportunity to contribute to and influence shared codebases across the wider JET organization.
True ownership is central to our engineering culture: we write it, and we own it. You will take end-to-end responsibility for the systems you build, including participating in our on-call rota to ensure our loyalty products remain resilient, performant, and reliable in production.
Location: Hybrid - 3 days a week from our London/Bristol office & 2 days working from home
Reporting to: Technology Manager
- Drive Frontend Architecture: Lead the technical design, architectural patterns, and end-to-end implementation of resilient, scalable web applications using modern React and TypeScript.
- Shape Cross-Disciplinary Alignment: Partner closely with Product, UX, and Backend engineers to translate product roadmaps into sound technical designs, define API contracts, and evaluate feasibility early.
- Champion Web Performance & Accessibility: Take ownership of web vital metrics (Core Web Vitals, bundle size, rendering performance) and ensure rigorous compliance with accessibility standards (WCAG).
- Maintain Operational Reliability: Champion frontend observability and error monitoring in production, actively participating in the team's on-call rotation to diagnose and resolve critical user-facing issues.
- Raise the Engineering Bar: Mentor mid and junior engineers through pair programming and insightful code reviews, fostering a culture of technical excellence and shared best practices.
What will you bring to the table?
- Advanced React & TypeScript Expertise: Extensive experience architecting and maintaining production-grade web applications using modern React, TypeScript, and ecosystem frameworks (such as Next.js).
- Modern AI Engineering Practices: Hands-on experience accelerating delivery with AI-assisted coding tools, and the ability to guide teams on reviewing generated code, maintaining architectural consistency, and keeping automated test coverage high.
- Robust Automated Testing Strategy: Proven experience building multi-layered test suites—including unit/component tests (React Testing Library, Jest, or Vitest) and end-to-end integration tests (Playwright or Cypress).
- State Management & Data Architecture: Deep understanding of modern state management, caching, and data-fetching patterns (e.g., TanStack Query, Redux Toolkit, or complex async flows like Redux-Saga).
- Accessible & Scalable UI Engineering: Comprehensive knowledge of semantic HTML, responsive layout patterns, modern CSS (e.g., CSS Modules, Tailwind, or CSS-in-JS), and practical implementation of WCAG accessibility standards across design systems.
- Frontend Delivery & Cloud Awareness: Practical familiarity with build tooling (e.g., Vite, Webpack), CI/CD pipelines, and cloud-based web delivery (e.g., AWS/GCP, CDN caching, serverless/edge rendering).
- Technical Leadership & Mentorship: Demonstrated ability to influence architectural decisions, author technical RFCs, conduct constructive code reviews, and mentor engineers to elevate team-wide standards.
- Collaborative Inner-Source Mindset: Strong cross-functional communication skills, with an appetite for contributing to shared tools, platforms, and inner-sourced libraries across the wider engineering organization.
At JET, this is on the menu:
Our teams forge connections internally and work with some of the best-known brands on the planet, giving us truly international impact in a dynamic environment.
Fun, fast-paced and supportive, the JET culture is about movement, growth and celebrating every aspect of our JETers. Thanks to them we stay one step ahead of the competition.
No matter who you are, what you look like, who you love, or where you are from, you can find your place at Just Eat Takeaway.com. We’re committed to creating an inclusive culture, encouraging diversity of people and thinking, in which all employees feel they truly belong and can bring their most colourful selves to work every day.
Want to know more about our JETers, culture or company? Have a look at our career site where you can find people's stories, blogs, podcasts and more JET morsels.
#LI-PM1
Skills Required
- Extensive experience architecting and maintaining production-grade web applications with modern React, TypeScript, and frameworks such as Next.js.
- Hands-on experience using AI-assisted coding tools and reviewing generated code while maintaining architectural consistency and test coverage.
- Experience building unit and component test suites using tools such as React Testing Library, Jest, or Vitest.
- Experience building end-to-end integration tests using Playwright or Cypress.
- Deep understanding of state management, caching, and data-fetching patterns, including TanStack Query, Redux Toolkit, or Redux-Saga.
- Knowledge of semantic HTML, responsive layouts, modern CSS, design systems, and WCAG accessibility standards.
- Familiarity with Vite or Webpack, CI/CD pipelines, and cloud-based web delivery such as AWS, GCP, CDN caching, or serverless and edge rendering.
- Ability to influence architecture, author technical RFCs, conduct code reviews, and mentor engineers.
- Strong cross-functional communication skills and willingness to contribute to shared tools, platforms, and inner-sourced libraries.
What We Do
Just Eat Takeaway.com is a leading global online food delivery marketplace, connecting consumers and restaurants through our platform in 20 countries. Like a dinner table, working at JET brings our office employees and couriers together. From coding to customer service to couriers, JET is a fun, fast-paced and supportive place where you can be yourself. No day is the same. Our days are filled with new experiences. We see every challenge that comes our way as a chance to grow, both the business, and ourselves. We’re connected to millions of food-lovers, hundreds of thousands of connected partners and some of the best-known brands of the planet. When you take your seat here, you’ll find that a simple scribble on a napkin can turn into something seen by millions. Together we transform, create, reinvent and empower every food moment. As a leading online food tech company, JET brings together the stability of a global business, with the agility of a start-up. We got here by always staying one step ahead of the competition. So load up your plate with ideas that get you excited, because at JET everything is on the table. https://careers.justeattakeaway.com
