Staff Backend Engineer, Platform

<p style="min-height:1.5em"><strong>Opportunity</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">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</p></li><li><p style="min-height:1.5em">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</p></li><li><p style="min-height:1.5em">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</p></li><li><p style="min-height:1.5em">you own the platform</p></li></ul><p style="min-height:1.5em"><strong>What you'll do</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">scale a multi-tenant Postgres under unpredictable load: query and I/O optimisation, read/write separation, horizontal scaling</p></li><li><p style="min-height:1.5em">make agent-driven workloads survivable: one user can spin up 30 table syncs, some running hours, while others query large sources</p></li><li><p style="min-height:1.5em">manage the sandbox layer: Docker containers where agents run queries and reverse-engineer files, with compute and memory budgets</p></li><li><p style="min-height:1.5em">own connectivity into customer networks: SOCKS5 over WebSockets, authentication, routing</p></li><li><p style="min-height:1.5em">scope the architecture and build it</p></li></ul><p style="min-height:1.5em"><strong>What we're looking for</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">staff or principal level, still hands-on, writing production code</p></li><li><p style="min-height:1.5em">built and scaled multi-tenant data platforms in a B2B startup or platform company before</p></li><li><p style="min-height:1.5em">deep Postgres or database knowledge: query plans, locking, I/O, caching, replication, sharding</p></li><li><p style="min-height:1.5em">understands startup pace and ownership without specs</p></li><li><p style="min-height:1.5em">pragmatic over ideal, wants to build foundations right without overengineering</p></li><li><p style="min-height:1.5em">strong TypeScript</p></li><li><p style="min-height:1.5em">English C1, German a plus</p></li></ul><p style="min-height:1.5em"><strong>Nice to have</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">experience at a data platform or warehouse company (Snowflake, Databricks, Cloudflare or similar)</p></li><li><p style="min-height:1.5em">networking depth: proxies, VPN, routing</p></li></ul><p style="min-height:1.5em"><strong>Location</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">preferred: Munich, on-site. We support relocation within Europe</p></li><li><p style="min-height:1.5em">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</p></li></ul><p style="min-height:1.5em"><strong>Tech stack</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">TypeScript end to end. Bun, tRPC, Postgres, Supabase. React frontend (Mantine, TanStack Query). Docker, job/process management, VPN/routing, agentic frameworks</p></li></ul><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div><hr><p>Compensation: €95K – €270K • Offers Equity • €5k referral bonus</p><ul><li> • total comp €95K – €270K • Offers Equity • €5k referral bonus</li></ul><p>Find <a href="https://www.arbeitnow.com">Jobs in Germany</a> on Arbeitnow</a>