Power BI Developer from Warsaw

Power BI Developer based in Warsaw. The person in this role will be responsible for developing and supporting end-to-end Power BI solutions, including custom reports, data models, paginated reports and performance tuning. Work is performed from the Warsaw office (Wola).

Responsibilities

  • Design, develop and maintain Power BI reports and dashboards, including paginated reports and custom visuals.
  • Develop and optimise data models, implement Row-Level Security (RLS) and Object-Level Security (OLS) as required.
  • Perform performance tuning for Power BI solutions through source optimisation, efficient T-SQL, database views and maximising query folding.
  • Develop Microsoft SQL Server applications and write robust T-SQL code for ETL and reporting scenarios.
  • Integrate Power BI solutions with external systems using Web Services, REST APIs and HTTP APIs.
  • Apply DAX and Power Query (M language) to transform, optimise and analyse large datasets for advanced analytics scenarios.
  • Collect and document requirements, produce draft specifications and propose final solution approaches in collaboration with stakeholders.
  • Collaborate within cross-functional teams, manage conflict constructively and present technical solutions to business audiences.

Qualifications

  • Minimum 2 years of experience in Power BI Developer role, including custom solutions development, dashboards, data models and paginated reports.
  • At least 4 years of professional experience in IT.
  • Proven experience with Microsoft SQL Server development and strong T-SQL skills.
  • Experience working with Web Services, REST API and HTTP API integrations.
  • Proficiency in DAX and Power Query for data transformation and optimisation.
  • Demonstrated ability in Power BI performance tuning by optimising MS SQL sources, creating efficient database views and maximising query folding.
  • Experience implementing Row-Level Security (RLS) and Object-Level Security (OLS).
  • Experience eliciting requirements and drafting solution specifications.
  • Strong teamwork, conflict-management skills and the ability to communicate results to business stakeholders and diverse audiences.
  • English language proficiency at B2 level or equivalent.
  • Ability for work from Warsaw office.

Benefits

  • Work location: Warsaw office in Wola.
  • Opportunities to work on complex Power BI and SQL Server projects with cross-functional teams.
  • Professional development through technical challenges and stakeholder-facing responsibilities.
  • Collaborative team environment with a focus on measurable outcomes and transparent communication.
  • Unique TEAL culture, relationship- and respect-driven community, non-corporate atmosphere.
  • Agile approach and no bureaucracy.
  • Outstanding integration trips to various places in Europe.
  • Activities to support your well-being and health.
  • Luxmed Gold Extended medical care and Multisport Plus benefit.

 

ID: 753 job_post.published_on: 15/10/2026
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