Staff Backend Engineer, Platform

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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