Senior Backend Engineer

About the Role This is a senior backend engineering role at an early-stage, Y Combinator–backed AI supply chain startup focused on the Consumer Packaged Goods (CPG) sector. You'll join a small, fast-moving engineering team in Munich to own the backend systems that power an AI-driven supply chain manager — turning the messy, real-world flow of physical goods into programmable, reliable, and scalable software. What You'll Do Design and implement backend systems that drive AI-powered supply chain planning and execution decisions. Architect data models and pipelines to ingest and organize complex, unstructured real-world data. Ensure user requests and supply chain plans are processed in real time with high reliability. Build scalable, high-performance SQL queries and data access patterns across large datasets. Ship production-grade services using modern backend frameworks and testing best practices. Collaborate closely with the core product and engineering team to translate logistics operations into software. Operate and improve deployment and runbook processes to maintain 24/7 system uptime. What We're Looking For 5+ years of experience as a Backend Engineer with a strong track record of shipping real products. Hands-on proficiency with Python and modern backend frameworks such as FastAPI, and testing tools like pytest. Strong SQL skills, including writing high-performance queries over millions of data points. Experience designing scalable data architectures and owning backend systems end-to-end, including real-time request processing. Comfort managing and organizing messy, unstructured real-world data at scale. Experience with AI-assisted code generation and management tools (e.g., Claude Code, Codex), including parallelizing instances for continuous operation. Solid system design instincts with the ability to work autonomously and make sound engineering trade-offs. Familiarity with unstructured data ingestion systems, DevOps practices, and AWS. Exposure to frontend frameworks and their testing is a plus. Compensation & Benefits Salary range: $110,000 – $200,000 USD annually . Visa sponsorship is available. Location On-site in Munich, Germany .