BI Developer

Solid Company; Warszawa; Hybrid; PLN 140,000 - 210,000; Full time

Job summary

Solid Company is seeking a skilled BI Developer to design, build, and optimize Power BI dashboards and data models. You will translate complex business requirements into robust BI solutions, leveraging DAX and Power Query to deliver actionable insights.

The role focuses on connecting diverse data sources, scaling reports for large datasets, and ensuring performance and governance within Power BI Service. Warsaw-based, on-site collaboration is expected.

Qualifications

• Proficient in Power BI Desktop and Service.
• Experience building reports and dashboards from scratch.
• Strong data modeling with star schema and relationships.
• Advanced DAX and Power Query for measures and KPIs.
• Experience with large data volumes, performance optimization, and monitoring.

Responsibilities

• Design, develop, and maintain interactive dashboards and reports.
• Translate business requirements into BI solutions.
• Develop data models and calculations using DAX.
• Create and optimize Power Query transformations.
• Connect Power BI to SQL databases, Excel, APIs, and cloud services.

Skills

Power BI

DAX

Power Query

Data modeling

Azure Data Factory

SQL

Capacity Metrics App

Power BI Service

Tools

Power BI Desktop

Power BI Service

Azure Data Factory

Job description

• Design, develop, and maintain interactive dashboards and reports using Microsoft Power BI.
• Gather, analyze, and translate business requirements into effective BI solutions.
• Develop data models, relationships, and calculations using DAX.
• Create and optimize Power Query transformations using M language.
• Connect Power BI to various data sources, including SQL databases, Excel files, APIs, and cloud services.

Kogo poszukujemy?

Requirements:

• Very good knowledge of Power BI (Desktop and Service)
• Experience in building reports and business dashboards from scratch
• Strong expertise in data modeling (star schema, relationships, model optimization)
• Good knowledge of DAX and Power Query (measures, KPIs, business calculations)
• Ability to analyze business requirements and translate them into reporting solutions
• Experience working with large data volumes, report performance optimization, and monitoring
• Knowledge of Capacity Metrics App
• Experience with publishing reports, managing permissions, and administering workspaces in Power BI Service
• Basic to intermediate knowledge of Azure Data Factory (ADF), including the ability to read, analyze, and maintain existing ADF pipelines
• Understanding of data flow between source systems, processing layers, and reporting solutions
• Ability to troubleshoot pipeline issues and monitor ETL process execution
• Basic SQL knowledge enabling data validation and source data analysis