Staff Backend Engineer, Platform

Zeit Ai; München; Vor Ort; EUR 95.000 - 270.000; Vollzeit

Benefits dieser Stelle

Equity

Referral bonus €5k

Relocation assistance

Zusammenfassung

ZeitMind in Munich is seeking a hands-on staff or principal level engineer to scale a multi-tenant data platform. You will own the platform, optimize Postgres under unpredictable load, and drive the architecture of the sandbox and connectivity to customers.

You’ll work with TypeScript on the stack ( Bun, tRPC, Supabase ) and help relocate if needed; on‑site Munich preferred, relocation within Europe supported, and a high‑velocity startup environment.

Qualifikationen

• Experience building and scaling multi-tenant data platforms.
• Strong PostgreSQL expertise including performance, locking and replication.
• Ability to own architecture with minimal specs in a fast-paced startup.
• Hands-on coding in production systems with a pragmatic mindset.
• Proficiency in TypeScript and related stack.
• English at work; German skills are a plus.

Aufgaben

• Scale a multi-tenant Postgres under unpredictable load.
• Make agent-driven workloads survivable and scalable.
• Manage the sandbox layer with Docker containers and budgets.
• Own connectivity into customer networks (SOCKS5 over WebSockets).
• Scope and build the overall architecture.

Kenntnisse

TypeScript

PostgreSQL

Multi-tenant data platforms

Startup pace ownership

Pragmatic approach

English (C1)

German (plus)

Tools

Docker

Bun

tRPC

PostgreSQL

Supabase

React

Jobbeschreibung

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

What you'll do

• 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

What we’re looking for

• 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

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 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

Tech stack

• 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