Independent technical portfolio / Power BI · SQL · VBA
I work across data preparation, business intelligence and internal systems to make reporting clearer, workflows simpler and business rules easier to trust.
Selected work
Open a project to inspect architecture, code and validation.
Power BI management reporting, latest-month DAX KPIs, value-based Top 10 ranking and independently reconstructed Power Query ETL demonstrations.
Microsoft Access business application, gross-margin pricing rules, calculated-control dependencies, reconstructed VBA code and Access-tested scenarios.
PostgreSQL analysis of fulfilment, seller KPIs and review outcomes, with carefully defined joins, window functions, reconciliation and measured query plans.
Working method
My approach
Understand the decision → inspect data quality → define business rules → implement → validate → document trade-offs.
I prioritise correct aggregation grain, reconciled totals, meaningful KPIs and workflows that people can use without unnecessary manual interpretation.
The other half of the story
My Notion portfolio covers the full business-facing case studies, including WIP Workflow & Billing Optimization, which focuses on process redesign, pilot testing and user adoption rather than publishable source code.
Explore Notion portfolio ↗