Senior Backend Engineer

You will join a European fintech startup building trust infrastructure as a Backend Engineer. You will design scalable systems that power high trust workflows and work closely with the engineering team to shape technical culture and long term architecture. What You’ll Do Design and implement clean, testable backend systems and APIs. Architect scalable infrastructure capable of handling high trust requirements. Champion testing, quality, and long term maintainability in every project. Think deeply about user needs and system behavior to tackle complex problems. Collaborate to shape engineering practices and contribute to technical direction.

5+ years of backend engineering experience with production systems. Strong systems thinking and ability to reason about long term architecture. Clear communicator who collaborates well with teammates. Ability to learn quickly and work effectively in ambiguity with kindness and curiosity. Experience with one or more backend languages such as Node.js or TypeScript, Python, Go, or Java, and familiarity with building production systems. Experience designing scalable APIs and backend infrastructure for high volumes or high trust environments. Production experience with relational databases, automated testing, message queues, and containerized/cloud environments (Kubernetes, AWS, etc.). Background in fintech, payments, identity, or other regulated domains is a plus.