Sr. Backend Software Engineer (Python) (m/w/x)

About Grover Founded in 2015, Grover enables consumers and businesses across Europe to subscribe to tech devices and comprehensive technology solutions - from individual smartphones, laptops, and wearables to full corporate device setups. The company offers access to over 1,000 unique tech items on flexible and financially convenient terms. A pioneer of the circular economy, Grover refurbishes and recirculates devices to help eliminate e-waste. To continue this incredible adventure, we are currently looking for a Senior Software Engineer (Risk) to join our talented Risk Engineering team at our Berlin HQ (40 hours full-time, onsite 3 days per week (Tues-Thurs). Risk Engineering builds the systems that decide which subscription orders Grover approves, declines, reviews or verifies, in real time, across four markets and for both consumers and businesses. As a Senior Software Engineer, you report to the Engineering Manager, Risk Engineering, and join a small, senior team that owns its services end to end. You work closely with risk analysts, data scientists, and product to grow approval rate while keeping fraud and defaults in check. 🎯 What you will contribute: - Our risk decisioning platform: the rule engine, experiments and decision APIs (FastAPI, GraphQL federation) that every Grover order passes through. - New risk products, starting with dynamic pricing and counter offers, from design to production. - Integrations with credit bureaus and identity, fraud and AML providers, built to stay reliable when vendors are not. - Event-driven flows on Kafka for decisions, manual review, ID verification and bank-account checks, correct under retries, duplicates and race conditions. - Tools for our risk analysts: the manual review experience and our LLM-powered risk assistant on AWS Bedrock. - Reliability and observability of your services: Datadog monitors, on-call, runbooks and removing legacy dependencies. 🤝 What you bring: - 5+ years of backend engineering, with Python in production as your main language, with comfort working 90% on the backend and 10% on the frontend. - Hands-on experience with event-driven systems (Kafka or similar) and PostgreSQL. - Experience designing REST and/or GraphQL APIs and integrating third-party APIs. - You have owned services in production: on-call, debugging across services, monitoring. - You are comfortable with AWS, Docker and Kubernetes, and can work with Terraform. - You like working with non-engineers, explain trade-offs simply and stay calm when priorities shift. - Bonus: fintech, payments, lending, fraud or credit-risk experience; rule engines or ML in production; LLM tooling; Rust, Rails or Vue; German. 🚀 The Grover Way - How We Drive Success: - Own It: We take ownership seriously and define what success looks like. We drive shared ownership and don't wait - we drive. We keep one another accountable and take responsibility when issues arise. - Challenge, Decide, and Commit: We engage in proactive support, active listening, and healthy conflict to reach the best outcomes. We value diverse perspectives and, once a decision is made, we commit to it fully. - Empower and Grow: We enable, trust, and coach one another toward high performance, always thinking and acting like owners. We seek growth, apply feedback, and support the development of our peers. - Respect, Transparency, and Clarity: We strive for clear, respectful, and open communication with no surprises. We simplify complex information so everyone knows the "what, why, and how". ❤️‍🔥 What you will love about us: - A diverse global team of 75 nationalities (and counting!) - Virtual or In-person Coaching Sessions with the Fürstenberg Institut - Physical health support with Urban Sports Club - Annual learning budget of 750€ - 15 remote business days per year to work abroad - 4 Volunteer days per year - Exclusive Grover Tech discount - BVG monthly discount to drive you everywhere in Berlin - Engaging, open office located in Berlin-Schöneberg with regular events Embark on a rewarding journey with the Grover Rocketship, where your impact is felt, and together, we cultivate a more circular world. 💚 We are looking forward to e-meeting you! 🚀