Attaullah Q.

I build Power BI dashboards that survive contact with messy real-world data. Most Power BI freelancers can drag fields onto a canvas. Fewer can fix a broken data model, write a DAX measure that doesn't silently return the wrong number, or tell you why your "insight" is actually just a formatting problem. That's the gap I work in. I'm a Power BI developer and data analyst with hands-on experience building full star-schema data models on SQL Server, writing 50+ measure DAX libraries organized for actual maintainability (not one giant untitled folder), and cleaning up datasets that arrive from three different systems, none of which agree on how a date should be formatted. WHAT I DO - Power BI dashboards built on proper star/snowflake schemas — not flat tables duct-taped together - DAX: time intelligence, YTD/MTD/rolling comparisons, churn & retention logic, bridge-measure patterns that scale across projects - Power Query / ETL — merging, cleaning, and standardizing multi-source data before it ever hits the report - Excel & Google Sheets systems — working capital models, inventory/tracking systems with Apps Script automation, financial dashboards - SQL Server — schema design, relationships, query writing WHERE I'VE WORKED Sales & marketing reporting, e-commerce analytics, finance/working-capital modeling, and — a bit unusual for this category — public-sector operations reporting, since I also run a school administration role and understand institutional/government data structures most freelancers never touch. WHY IT MATTERS A dashboard that looks good and reports the wrong number is worse than no dashboard. I check the model before I touch the visuals. If your date table's broken or your relationships are wrong, I'll tell you before I build anything on top of it — even if that's not what you asked for. I'd rather spend an extra hour on the model than give you a dashboard that lies confidently. If you've got messy data, a half-built report, or a Power BI file that "mostly works" — send me the file and a sentence about what's wrong. I'll tell you honestly whether it's a quick fix or a rebuild, before you spend a dollar. Atta Ullah Qureshi Power BI Developer | SQL Server | DAX | Excel & Google Sheets Automation If you're not sure whether your project needs a full data model rebuild or just better DAX, ask me. That diagnosis is free; I'd rather you know what you're buying before you buy it.