Senior Front-End Developer

Your day might begin by reviewing overnight feedback on a Toqan interface - triaging what's a quick fix, what signals a component architecture decision, and what needs a conversation with the backend team before you touch a line of code. You open Figma to validate a new design against the component library before committing to a build approach. Through the morning, you're heads-down in React and TypeScript - building or refining components, writing the kind of code that makes the next engineer's life easier. You sync with an engineering counterpart to align on an API contract, then spend time extending the design system so the next AI product team can adopt it without starting from scratch. In the afternoon, you might prep a short stakeholder presentation - usage data, design rationale, a recommendation - before closing the day by reviewing a pull request and updating documentation. The work is concrete, the ownership is real, and the impact lands across the whole portfolio.

Do you have experience in Usability?, You think in systems, not screens. When you look at a design brief, you're already thinking about the component architecture, the reuse patterns, and how this piece fits the platform three products from now. You're comfortable making architectural calls independently and equally comfortable walking a senior stakeholder through the data behind a design decision. Ambiguity doesn't slow you down - you go with 60-80% of the plan and iterate fast. You care about craft without being precious about it. You'll push back when a design creates technical debt, and you'll advocate for the component library even when the pressure is to ship fast and move on. You thrive in a small, high-ownership team where your fingerprints are on the platform, not just the ticket., * 7+ years of front-end development experience, with a significant portion spent making architectural decisions - not just implementing them

• Mastery of HTML5, CSS3, and JavaScript (ES6+) - you write clean, performant, production-ready code as a matter of habit
• Expert-level React: hooks, functional components, state management patterns - you've made the architectural calls, not just followed them
• Strong TypeScript fluency, including types, interfaces, and generics in complex, real-world codebases
• Hands-on experience with Styled Components and CSS-in-JS at scale
• Proven ability to translate UX/UI designs into responsive, accessible, production-ready interfaces - Figma or Adobe XD to browser, no handholding required
• Experience building and maintaining a shared component library or design system adopted across multiple products or teams
• Comfortable integrating front-end interfaces with back-end APIs and collaborating closely with backend engineers to define contracts
• Track record of conducting usability testing and presenting data-driven design decisions to non-technical stakeholders
• Familiarity with AWS services - Lambda, S3, CloudFront - is a plus
• Go or Python experience is a plus, particularly if you've worked on AI or ML platform teams where full-stack context matters

Competitive compensation, comprehensive benefits, and a hybrid work setup based in Amsterdam. Full details shared during the process.

Prosus is a leading global technology company, based in Europe. With ecosystems that span India, Latin America, Europe and beyond, Prosus is the power behind some of the world's leading lifestyle ecommerce brands. We own and invest in a portfolio of 100+ companies in sectors such as in food delivery, quick commerce, fintech and experiences, all of which help billions of people buy, sell and transact every day. We connect these leading brands through our AI-driven ecosystem that leverages data to deliver seamless, personalised lifestyle-ecommerce experiences for buyers and sellers, reshaping exceptional service for our two billion customers. Few companies can connect people and problem-solve across borders, as we do. Through our Ventures business we also invest in companies which inspire and support the Prosus ecosystem. We search for new opportunities at the leading edge of AI and ecommerce, the digital AI workforce and in frontier technologies, such as robotics, drones and synbio. The Opportunity Our central AI team in Amsterdam is building Toqan and a growing suite of AI-native products that give Prosus portfolio companies the tools to focus on what matters most - strategic, high-order work. This role sits at the heart of that mission: you'll own front-end architecture and delivery end-to-end, from design brief to production, across platforms that touch the entire Prosus group. This isn't a feature-delivery role. This is about establishing the front-end foundation - a shared component library and design system - that multiple AI products will be built on. Within your first 90 days, key Toqan front-end components will be live in production. Within six months, the component library you build will be adopted across at least two AI platform products, measurably reducing dependency on portfolio company engineering teams. You'll work in a startup-style environment, reporting directly to the Director of AI, embedded in a fast-moving team where the gap between idea and shipped product is deliberately short. Amsterdam is home base - and the pace here reflects how seriously Prosus is moving on AI., We respect the dignity and human rights of individuals and communities wherever we operate in the world. Building an inclusive workplace where everyone feels welcome and can thrive is critical for us. We provide access to education, which helps everyone understand the important role they play and the positive impact they can have. For a deeper look at our journey and future plans, explore our latest Annual Report. Stay up to date with our latest news to see what makes Prosus stand out. Learn more at www.prosus.com.   You must create an Indeed account before continuing to the company website to apply