Steph Keo

I can help with any data tasksI help businesses turn messy operational data into reliable reporting. My work spans the full stack: building SQL Server stored procedures and ETL/ELT pipelines, migrating legacy T-SQL logic into PySpark on Microsoft Fabric, and designing medallion-architecture lakehouses. On the reporting side, I develop Power BI semantic models with DAX measures, row-level security, and year-over-year utilization analysis, plus SSRS and Excel/Power Pivot models with rolling 12-month metrics. I've built payroll hour-allocation logic, job-cost and billing reconciliation queries, and bulk data-correction scripts with proper transaction control. If your numbers need to be right and explainable, not just fast, I can help.