Senior Software Engineer, Data

Responsibilities

We are representing a confidential industrial optimization client in Germany. Your mission is to scale their data platform for multiple customers and domains. Customer data arrives in many formats from many sources, including ERP exports, and must land in the system consistently, remain manageable at millions of records, and be fast to query when models and results are on-screen.

You will own:

• The data platform end to end: ingestion, storage, and the query paths that keep millions of records fast on screen
• The platform layer: infrastructure, deployments, and the path to production for the whole team
• Performance and correctness work in the optimization engine, together with research engineers
• Your features from first line to production—no handoffs, you build and ship directly

The product is a data-heavy web application with a math-heavy backend (Python, TypeScript, Solid.js, Postgres, on Cloudflare). Your center of gravity is data and infrastructure, but you touch the whole stack.

What We're Looking For

Required:

• 5+ years building production backend or data-intensive systems
• Strong Python and solid TypeScript, with the appetite to work in both daily
• Analytics-data experience: real SQL depth, plus any of Parquet/Arrow/DuckDB/dbt/warehouse internals
• Production PostgreSQL (multi-tenant, migrations, performance)
• Data pipelines over heterogeneous sources (ERP exports, Excel, CSV) onto object storage (S3 or comparable), built to keep working as customers and formats grow
• Distributed systems and API design: typical failure modes, HTTP/auth/caching, sane versioning and error behavior
• Engineering craft: design patterns, CI/CD pipelines you set up yourself, prototypes you can throw away
• Experience working in a team with agile practices and project management tools (Linear, Jira, or similar)
• Proactive communication and self-organization skills
• German at C1 or better, and fluent English
• NRW-based (Cologne office), optionally Munich, Stuttgart, Berlin area or willing to work hybrid

Nice to have: a substantial migration you carried out end to end (system, stack, or data) · telemetry and observability · Cloudflare or comparable serverless infrastructure · frontend experience, ideally with Solid.js or another reactive framework · optimization/operations research exposure · manufacturing or ERP data experience

This role is not for you if you want a clearly defined box, or work handed to you in tickets. Our client is a small team, pre-Series A: structures and processes are still being built. Priorities shift with customers, and some weeks a deadline bends the plan.

How We Work with You

Candidates apply through Get A Job.ai. Our talent team will screen your application and schedule an initial conversation. If we advance your candidacy, we will submit you to our client for their interview process, which includes technical conversations, a hands-on challenge, and team meetings. The process typically takes two to three weeks end to end, with feedback within days after each step.

Please do not contact the client directly. All communication and coordination will run through Get A Job.ai.

Pay

Competitive salary and equity package commensurate with experience. Pay details will be discussed during the screening process with our recruiting team.

Get A Job.ai is an equal opportunity recruiter. We welcome applications from all qualified candidates regardless of race, color, religion, sex, national origin, age, disability, or any other protected characteristic.