IVER is a leading Nordic IT and cloud transformation partner, delivering secure and innovative solutions in operations, cybersecurity, and cloud services. We've outgrown the Windows-locked black box of Power BI. We're building a high-performance, open-source analytics platform on strong on-prem infrastructure: a stack built on ClickHouse, Cube.js, and Apache Superset. First architectural decisions are made and we're already in the testing phase. We're looking for a code-driven Data Engineer who lives and breathes data modeling and semantic layer design to help translate our existing Power BI logic into this modern, transparent, scalable stack. You'll work with real systems and data, at scale, alongside experienced platform engineers. The position is available from 1st October 2026. SALARY: 11 600 – 16 250 PLN gross/month Permanent 80 - 120 net/hour B2B 14 000 – 19 500 PLN net/month B2B KEY FACTS: Design and implement of the semantic layer to serve as the "single source of truth" for internal and customer BI. Translate legacy Power BI reports and business logic into the new technology stack. Build, maintain, and optimize robust ELT pipelines. Ensure high performance and query optimization across our data models. WE EXPECT FROM YOU: Strong data modeling: layered models, business metrics, clean semantic layers Advanced SQL: ingestion, complex manipulation, query optimization Python (or another backend language) and a solid Git-based workflow ELT experience: robust pipelines, multi-source integration, Change Data Capture (CDC) Hands-on with Airflow or similar orchestration tools A configuration-as-code mindset Clear communicator, comfortable with hybrid work, English B2/C1 APPRECIATED: BI migration experience (Power BI / SSIS → open-source stack) Cube.js, ClickHouse, or Apache Superset Docker A sharing mindset - open to putting your engineering out in the world AI-FIRST MINDSET We encourage AI-assisted engineering and provide access to assistants like GitHub Copilot and Claude. As an infrastructure company self-hosting our own open-source models, we also give you a rare chance to see how AI works behind the scenes on real hardware and scale. WE PROVIDE YOU: Scandinavian work style & international environment Full-time employment agreement or B2B contract Flexible work hours & Hybrid work (1 office day) 28 paid days off for a B2B contract 3000 PLN yearly training budget & Pluralsight access Sport package, private health care, and life insurance Recommendation bonus & Car parking