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 apps


• we 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 grow


• load 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 interactions


• you own the platform

• scale a multi\-tenant Postgres under unpredictable load: query and I/O optimisation, read/write separation, horizontal scaling


• make agent\-driven workloads survivable: one user can spin up 30 table syncs, some running hours, while others query large sources


• manage the sandbox layer: Docker containers where agents run queries and reverse\-engineer files, with compute and memory budgets


• own connectivity into customer networks: SOCKS5 over WebSockets, authentication, routing


• scope the architecture and build it

• staff or principal level, still hands\-on, writing production code


• built and scaled multi\-tenant data platforms in a B2B startup or platform company before


• deep Postgres or database knowledge: query plans, locking, I/O, caching, replication, sharding


• understands startup pace and ownership without specs


• pragmatic over ideal, wants to build foundations right without overengineering


• strong TypeScript


• English C1, German a plus

• experience at a data platform or warehouse company (Snowflake, Databricks, Cloudflare or similar)


• networking depth: proxies, VPN, routing

• preferred: Munich, on\-site. We support relocation within Europe


• already 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

• TypeScript end to end. Bun, tRPC, Postgres, Supabase. React frontend (Mantine, TanStack Query). Docker, job/process management, VPN/routing, agentic frameworks

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