Staff Backend Engineer, Platform

Opportunity ZeitMind is an autonomous data engineer for mid-market businesses. Agents and people work the same company data: ingest, pipeline, clean, analyse, build operational appswe are growing fast and will be onboarding multiple enterprise customers a week. The backend isn't ready yet, your impact will decide the speed at which we can growload growth is compounding: more customers, multiple users per customer, many agent interactions per user and multiple agent artifacts (data pipelines, schedules, analyses) coming out of the interactionsyou own the platform What You'll Do scale a multi-tenant Postgres under unpredictable load: query and I/O optimisation, read/write separation, horizontal scalingmake agent-driven workloads survivable: one user can spin up 30 table syncs, some running hours, while others query large sourcesmanage the sandbox layer: Docker containers where agents run queries and reverse-engineer files, with compute and memory budgetsown connectivity into customer networks: SOCKS5 over WebSockets, authentication, routingscope the architecture and build it What We're Looking For staff or principal level, still hands-on, writing production codebuilt and scaled multi-tenant data platforms in a B2B startup or platform company beforedeep Postgres or database knowledge: query plans, locking, I/O, caching, replication, shardingunderstands startup pace and ownership without specspragmatic over ideal, wants to build foundations right without overengineeringstrong TypeScriptEnglish C1, German a plus Nice to have experience at a data platform or warehouse company (Snowflake, Databricks, Cloudflare or similar)networking depth: proxies, VPN, routing Location preferred: Munich, on-site. We support relocation within Europealready in London? We can make that work. We have people here and are opening a small office, and we'd expect regular Munich travel. In-person culture is important to us Tech stack TypeScript end to end. Bun, tRPC, Postgres, Supabase. React frontend (Mantine, TanStack Query). Docker, job/process management, VPN/routing, agentic frameworks Compensation Range: €95K - €270K