Senior Backend Engineer, AI Platform (Toqan)

Job description

Who We Are You've ordered dinner through Just Eat Takeaway. You've bought and sold on OLX. You've paid with PayU. Chances are, you've already used a Prosus company today. We are Prosus, a global technology company powering some of the world's leading lifestyle ecommerce businesses. Every day, billions of people across India, Latin America, Europe and beyond use our products and services to buy, sell, pay, connect and discover. Our AI-driven ecosystem spans 100+ companies across ecommerce, food delivery, fintech and experiences, serving billions of consumers worldwide. AI powers how we operate and innovate, with more than 60,000 active AI agents helping our teams build, scale and move faster. Through our investment team, we also back the founders and technologies shaping the future: From robotics and autonomous systems to synthetic biology and frontier AI. Guided by our five values Innovation, Results, People, Impact, and Entrepreneurship, culture is our competitive advantage. We thrive with experimentation; we build, we test, we learn, we iterate. Join us in shaping the future of technology at global scale. The Opportunity Toqan is Prosus's internal AI platform — the infrastructure and tooling layer that powers agentic AI-driven products across the entire group.We are building secure, configurable agent runtimes that can operate reliably at scale across different products, channels and use cases.. You’ll work where distributed systems meet applied AI: orchestrating models and tools, enabling agents to perform long-running work, and turning rapidly evolving AI capabilities into dependable platform primitives. The challenges span asynchronous workflows, isolated execution, extensible integrations, reliability, observability and cost control. The Toqan platform serves the whole Prosus portfolio and other connected businesses, which means the backend systems you build here have reach far beyond a single team. You'll join a 12-person engineering team in Amsterdam and work closely with product, platform and AI colleagues to ship end-to-end — at pace, without compromising quality. Who You Are You are a senior backend engineer who has moved well past following patterns and into setting them. You're comfortable owning architectural decisions on novel infrastructure — the kind where the right answer isn't obvious and the stakes are real. You think in systems, spot fa…