Power BI Developer from Warsaw

Power BI Developer based in Warsaw 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).

• 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.

• 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.

Ability for work from Warsaw office is required.