I will write, optimise, and fix complex sql queries and stored procedures

Im a UK-based Senior BI Developer with 13+ years of experience working with SQL Server and Azure SQL in production environments.

I specialise in writing, fixing, and optimising complex SQL including multi-stage CTEs, window functions, temp table strategies, and stored procedures used for ETL and reporting.

Common problems I help with:

• Slow or failing queries
• Poor indexing and performance
• Duplicate or inconsistent data
• Fragile stored procedures
• SQL logic thats hard to maintain or scale

I also design SQL for data warehouses using Kimball methodology, including fact and dimension tables, incremental loads, and Slowly Changing Dimensions.

Whether you need a quick fix, a full refactor, or reliable SQL logic that holds up under real-world usage, I can help.

Please message me before ordering if youre unsure which package to choose.