Senior Backend Engineer (Python) — m/f/d

<p>We're a fast-growing product company building an AI-powered platform used by thousands of teams every day. We're looking for a Senior Backend Engineer to own critical services end-to-end — from design to production — and help us scale to the next order of magnitude. You'll join a small, senior team where your decisions have real impact.</p> <h3>Tasks</h3> <p>- Design, build and operate scalable backend services (Python / FastAPI) and REST APIs.<br> - Model and optimize PostgreSQL schemas; write efficient async queries.<br> - Own services end-to-end: architecture, implementation, testing, deployment and monitoring.<br> - Integrate third-party APIs and internal microservices behind a gateway.<br> - Improve reliability, performance and security under high concurrency.<br> - Collaborate with product and frontend to ship features that matter.<br> - Mentor mid-level engineers and raise the bar on code quality.</p> <h3>Requirements</h3> <p>- 5+ years building production backend systems in Python.<br> - Strong experience with FastAPI (or Flask/Django) and async programming.<br> - Solid PostgreSQL skills: schema design, indexing, query optimization.<br> - Experience designing and scaling REST APIs and microservices.<br> - Comfortable with Docker, CI/CD and cloud (AWS preferred).<br> - Good understanding of auth (JWT/OAuth), caching and message queues.<br> - Clear written and spoken English; pragmatic, ownership mindset.<br> Nice to have: Kubernetes, SQLAlchemy, observability (Prometheus/Grafana), LLM/AI integrations</p> <h3>Benefits</h3> <p>- Competitive salary + equity.<br> - Remote-friendly with flexible hours.<br> - Top-tier hardware and a yearly learning budget.<br> - 30 days paid vacation.<br> - Small senior team, real ownership, fast decisions.</p> <p><strong>Skills:</strong> Python, FastAPI, PostgreSQL, Docker, AWS, REST APIs, Microservices, SQLAlchemy, CI/CD, Redis</p> <p>If you like owning hard problems and shipping reliable systems at scale, we'd love to talk. The process is quick: a short AI video interview, then a technical conversation with the team. Apply today.</p> <p>Find more <a href="https://www.arbeitnow.com/english-speaking-jobs">English Speaking Jobs in Germany</a> on Arbeitnow</a>