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Callista Group AG

1 week ago

Senior Power BI Developer / BI Engineer (Azure Databricks)

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Company information

Company
Callista Group AG
Location
Frankfurt, Hessen, Germany Germany
Posted
1 week ago
View all jobs at Callista Group AG

Job description

For our client, an insurance company in the greater Frankfurt am Main area, we are looking for an experienced Power BI Developer as part of the development of a new strategic data platform (Lakehouse) based on Microsoft Azure and Databricks. You will design the Gold layer and the semantic Power BI model, on which sales and campaign reporting as well as selections will be based, and support the client's reporting team in implementing the reports.

Tasks

  • Design of the reporting-ready Data Mart/Gold layer (facts, dimensions, reusable business KPIs) in collaboration with Data Engineering

  • Development of the semantic Power BI model with measures (DAX), relationships, hierarchies, drill-downs, and authorization logic (Row-Level Security)

  • Participation in sales and campaign reports as well as logic for customer and campaign selections

  • Definition of reusable reporting standards and UX guidelines, as well as ensuring performance and release readiness

  • Plausibility checks, report testing, and error correction in collaboration with the business departments

  • Documentation and enablement of key users and the internal reporting team


Requirements

  • Several years of experience in developing Power BI solutions in an enterprise environment

  • Very good knowledge of semantic models, DAX, Row-Level Security, and deployment processes

  • Experience in connecting Databricks or Lakehouse platforms (Databricks SQL, Delta Lake)

  • Sound knowledge of dimensional modeling (Star Schema)

  • Experience with sales, customer, or campaign key figures in the insurance or financial sector is an advantage

  • Strong communication skills in exchange with business departments

  • Certifications (e.g., PL-300, DP-600) are an advantage

  • Fluent German and good English language skills

General Framework Conditions

  • Workload: 80–100%

  • Start: Beginning of November 2026

  • Duration: until March 31, 2027, with an option for extension (follow-up phases planned until the end of 2028)

  • Work location: Greater Frankfurt am Main area (Germany)

  • Onsite/Remote: High onsite proportion in the first 2–3 months (3–4 days per week), thereafter approx. 2 days onsite, rest remote

  • Client interviews: Availability for interviews with the client at the end of October 2026

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