Senior Data Platform Engineer

Hi, I'm Erik, CTO at Circonomit. We build the decision platform industrial companies use to plan their production. Three problems on my table right now:

• Users need to explore millions of records without the UI slowing down, even while an optimization model runs over the same underlying data.
• The UI and the solver need that data in different shapes and on different timescales. Our data models and query paths have to serve both.
• Customer data arrives through ERP exports, Excel files, and CSVs. It has to become one consistent, queryable model, with each tenant's data reliably isolated.

I need someone to take the data platform and own it end to end: decide what it needs, build it, keep it running.

Our models decide what gets produced when, on which machine, and at what stock level. Every one of them runs on the data you would own.

We came out of RWTH research, raised €2.8M with Vorwerk Ventures, and have customers running on our models today. Small team, Cologne office.

Requirements

• 5+ years working on production backend or data-intensive systems.
• Recent, substantial hands-on experience writing and operating production software.
• Strong Python skills. TypeScript experience is a plus.
• Production PostgreSQL experience: multi-tenancy, migrations, and performance optimization.
• Deep SQL knowledge and experience with analytical data processing, such as columnar formats