Senior BI Developer

RED Global is seeking an experienced Senior BI Developer / Data Engineer for a long-term contract supporting the development and modernisation of a Microsoft-based data and analytics platform. This is a hands-on role covering SQL development, data warehousing, ETL/ELT and integrations, alongside BI and reporting. Senior BI Developer / Data Engineer - Microsoft StackLocation: Umeå, Sweden - onsiteContract: B2B freelanceDuration: ASAP to 31 October 2027, with potential extensionsLanguage: Fluent Swedish required Responsibilities Develop and maintain data warehouses, pipelines and analytical solutions. Build and optimise SQL procedures, business logic and data models. Integrate internal and external systems through APIs, files and messaging. Troubleshoot data flows and improve database performance and data quality. Contribute to the evolution of the data platform, including technical decisions, testing and documentation. Collaborate with product owners, developers and business stakeholders. Required experience At least seven years in software development, data engineering or a comparable technical role. At least five years of SQL database development, including stored procedures and performance optimisation. Proven delivery of data warehouse and ETL/ELT solutions across at least two assignments. Strong analytical data modelling skills. Experience with Python, C#, .NET or JavaScript/TypeScript. Git, Azure DevOps or similar version-control and development tools. Experience independently delivering solutions within agile teams. Very good spoken and written Swedish. Desirable skills SQL Server, SSIS, SSAS, SSRS, and Power BI. Microsoft Fabric, Databricks, Azure Data Factory, or dbt. Dimensional modelling, Kimball, or Data Vault. Cloud data platform migration, CI/CD, and automated testing. Experience in energy, utilities, or another regulated industry. If you're interested, please apply.