Jobs in London - Power BI Developer • Central London

Company: Data Careers

Central London

Power BI Developer3 Month ContractLocation: Home / LondonRate: £500 - £550 per day (Inside IR35) Skills: Power Query, PBI Data Modelling, DAX We are looking to recruit a Power BI Developer for a leading technology consultancy on an initial 3 month contract. Working in my client's Reporting & Analytics Team the successful candidate will be responsible for processing and translating finance and sales data into actionable dashboards, supporting the business as it evolves through its Target Operating Models. This is a remote role with some travel into London. About the RoleYou will work on end-to-end production of Power BI reports, combining multiple data sources using SQL and Power Query, developing robust data models, creating DAX measures, and delivering visually clear dashboards using standard templates. You will also conduct unit testing, support business testing, and maintain in-line and external documentation to required standards. Key Responsibilities Develop Power BI reports from end-to-end, integrating multiple data sources using Power Query. Build and maintain performant data models, ensuring simplicity and efficiency in DAX calculations. Design visuals and layouts following company templates and standards. Write SQL queries against the Enterprise Data Warehouse to extract and transform data. Conduct unit testing, spot anomalies, and support business testing. Produce in-line and external documentation to maintain high-quality deliverables. Technical Skills & Experience Strong SQL skills (joins, CTEs, sub-queries, window functions). Power Query for data extraction and transformation in Power BI and Excel. Power BI Data Modelling for large and complex datasets. DAX for measures and calculations within Power BI. Experience creating clear, visually effective reports using standard Power BI visualisations. Good documentation practices, both in-line and external. Understanding of finance and sales data is essential.