Senior Software Engineer, Data
Circonomit · Cologne, North Rhine-Westphalia
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- Company
- Circonomit
- Location
- Cologne, North Rhine-Westphalia
- Employment type
- Full-time
- Posted
- September 1, 2026
About this job
our customers model their production — capacities, costs, constraints — and we compute the answer to "what should we do?" before the decision is made. Your mission: scale our data platform for multiple customers and domains. Customer data arrives in many formats from many sources, ERP exports included; it has to land in our system consistently, stay manageable at millions of records, and be fast to query when models and results are on screen. The product is a data-heavy web app 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. We are looking for a system thinker who wants to shape the architecture, and more than that.…
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