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Senior Backend Engineer (Multi-Tenant Data Platform)

zeitmind • Germany
Relocation
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Build and scale a multi-tenant Postgres platform for an autonomous data engineering startup. Focus on query optimization, agent-driven workloads, sandbox management, and network connectivity. Requires deep Postgres expertise, TypeScript proficiency, and hands-on ownership in a fast-paced B2B environment.

Key Highlights
Own and scale a multi-tenant Postgres platform under unpredictable load
Handle agent-driven workloads with high concurrency and long-running queries
Manage sandbox environments with compute/memory constraints via Docker
Key Responsibilities
Scale multi-tenant PostgreSQL infrastructure with query and I/O optimizations
Design and implement read/write separation and horizontal scaling solutions
Manage sandbox environments with Docker for agent-driven workloads
Develop and maintain connectivity solutions (SOCKS5, WebSockets, authentication, routing)
Scope and build the platform architecture
Technical Skills Required
PostgreSQL TypeScript Distributed Systems
Nice to Have
Experience with data platforms/warehouses (Snowflake, Databricks, Cloudflare)
Networking expertise (proxies, VPN, routing)
German language proficiency

Job Description

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

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