Senior Python Engineer

Senior Python Engineer LocationBerlinEmployment TypeFull timeLocation TypeOn-siteDepartmentEngineeringCompensation€100K – €150K • Offers EquityWhat you’ll doTake ownership of complex backend systems end-to-end - from scoping and architecture to high-quality, reliable deliveryDesign and build robust, scalable APIs and distributed systems that power our products and deliver exceptional performanceCollaborate closely with Product, Frontend, and Design teams to translate product ideas into well-architected backend solutionsPush the boundaries of what’s possible with modern backend technologies, driving innovation in both architecture and developer experienceContribute to evolving our backend architecture, infrastructure, and developer tooling to support rapid iteration at scaleProactively identify opportunities to improve system performance, reliability, and developer experience - and drive those initiatives through to executionWhat we’re looking for5+ years of professional backend engineering experience, ideally in fast-paced startup or high-growth environmentsDeep expertise in Python and FastAPI, with a proven track record of building and scaling production systemsExperience designing and implementing APIs (REST, GraphQL, or gRPC) that power user-facing productsStrong experience working with SQL databases (e.g. PostgreSQL), including schema design, query optimization, and data modeling for production systemsFamiliarity with cloud-native architectures, ideally on GCP (e.g. Cloud Functions, Cloud Tasks, Firestore)Familiarity with DevOps practices, CI/CD pipelines, and infrastructure-as-codeFamiliarity with Vertex AI and ML specific infrastructureStrong communication skills and a high sense of ownership - able to operate with autonomy while staying aligned with team goalsSome markers of excellence, which could also be non-work related, like having a high FIDE ratingMost importantly: we care deeply about working with genuinely kind, collaborative, and hard-working people who make the team better through empathy and opennessTech StackLanguages: Python, TypeScriptBackend: GCP, Vertex AI, Cloud Functions, Cloud Tasks, RabbitMC, Firestore, PostgreSQL, ClickhouseAI Models: OpenAI, Claude, Perplexity, Gemini, Llama, etc.Bonus PointsYou’ve personally built and scaled a system (e.g. side project, startup, open-source) that handled significant traffic or complexity, and learned real lessons from itBackground working on AI products or data-heavy applicationsAcademic background in Computer Science or a related technical fieldExperience in starting a company or working at a top-tier high-growth startupWhat we offerExciting and challenging work with real impact and ownership at one of Europe’s fastest-growing Series A startupsRegular team events and off-sitesAggressive equity compensation packagePaid Dinner & Uber home when working lateThe most beautiful office space and work environment in BerlinApply for this Job