Power BI developer
Posted 2 days ago by iO Associates
£615 Per day
Inside
Remote
City Of London, England, United Kingdom
Summary: The Power BI Developer role involves designing, building, and delivering comprehensive BI solutions using SQL and Power Query ETL, with a focus on transforming complex data into impactful insights. The position requires collaboration with stakeholders and includes responsibilities such as report development, data modeling, and dashboard design. This is a remote position with occasional onsite requirements, and it is expected to last for three months with a possibility of extension. The role is classified as inside IR35 with a competitive daily rate.
Key Responsibilities:
- Develop end-to-end Power BI reports integrating multiple data sources (SQL, Power Query).
- Build and optimise data models for performance, scalability, and simplicity.
- Create advanced DAX measures for financial, operational, and performance analytics.
- Design clean, user-friendly dashboards aligned with brand and reporting standards.
- Perform unit testing, troubleshoot data issues, and validate accuracy.
- Maintain clear in-line and external documentation throughout the project lifecycle.
- Collaborate with stakeholders to support testing, rollout, and adoption of BI solutions.
Key Skills:
- SQL (Intermediate): Joins, CTEs, subqueries, window functions.
- Power Query (ETL): Data transformation and automation.
- Power BI Data Modelling: Star schema design and performance tuning.
- DAX: Advanced measures, KPIs, and calculated columns.
- Power BI Visualisation: Skilled in standard Power BI visuals (no third-party tools).
- Documentation & QA: Strong focus on testing, accuracy, and maintainability.
- Desirables: Government or public sector experience; Sales and finance data experience.
Salary (Rate): £615.00/daily
City: City Of London
Country: United Kingdom
Working Arrangements: remote
IR35 Status: inside IR35
Seniority Level: undetermined
Industry: IT
Role: Power BI Developer
Day rate: Inside IR35 up to £615 per day
Location: Remote - onsite occasional would be great
Duration: 3 months with likely extension
Power BI Developer to design, build, and deliver end-to-end BI solutions from SQL and Power Query ETL through data modelling, DAX , and dashboard design . This role is perfect for someone who thrives on transforming complex data into powerful, high-impact insights .
Key Responsibilities:
- Develop end-to-end Power BI reports integrating multiple data sources (SQL, Power Query).
- Build and optimise data models for performance, scalability, and simplicity.
- Create advanced DAX measures for financial, operational, and performance analytics.
- Design clean, user-friendly dashboards aligned with brand and reporting standards.
- Perform unit testing , troubleshoot data issues, and validate accuracy.
- Maintain clear in-line and external documentation throughout the project lifecycle.
- Collaborate with stakeholders to support testing, rollout, and adoption of BI solutions.
Technical Skills:
- SQL (Intermediate): Joins, CTEs, subqueries, window functions.
- Power Query (ETL): Data transformation and automation.
- Power BI Data Modelling: Star schema design and performance tuning.
- DAX: Advanced measures, KPIs, and calculated columns.
- Power BI Visualisation: Skilled in standard Power BI visuals (no third-party tools).
- Documentation & QA: Strong focus on testing, accuracy, and maintainability.
Desirables:
- Government or public sector experience
- Sales and finance data experience
If you fit the above description and are available to start a new role within the next week, please send me your updated CV