Staff Backend Engineer, Platform

Opportunity

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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

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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

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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

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you own the platform

What you'll do

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

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

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

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

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scope the architecture and build it

What we’re looking for

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staff or principal level, still hands‑on, writing production code

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built and scaled multi‑tenant data platforms in a B2B startup or platform company before

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

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understands startup pace and ownership without specs

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pragmatic over ideal, wants to build foundations right without overengineering

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strong TypeScript

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English C1, German a plus

Nice to have

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

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networking depth: proxies, VPN, routing

Location

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preferred: Munich, on‑site. We support relocation within Europe

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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

Tech stack

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

Compensation: €95K – €270K Offers Equity €5k referral bonus