Senior Backend Engineer

ABOUT THE ROLE 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. WHAT WE'RE LOOKING FOR - 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. COMPENSATION & BENEFITS Base salary range: EUR 116,000 to 146,000 annually. The company uses a uniform leveling system with consistent pay across roles at the same level. No visa sponsorship is provided; applicants must already have the right to work in Europe. LOCATION Work arrangement: fully remote within European time zones. Primary location: Austria.