Jonathan Dufault
it’s usually a data problem
Analytics engineer, turning questions into projects. Operations and supply chain: the reporting people run the business on, and the checking that happens before anyone acts on a number. Code is maybe 40% of figuring something out. The rest is just staring at it until it makes sense.
Selected Projects
Looking under the hood for Power BI Copilot
Power BI Copilot doesn’t document how it processes questions internally. I’m writing what I’ve found using Copilot’s diagnostic JSON across three environments, Desktop, Power BI Service (not edit mode), and the sidebar Copilot in Power BI.
In-Spec Isn’t Good Enough
Every quality check was passing. Customers were calling in about a chemical taste in the water anyway.
How do you count a million milk crates?
We were losing hundreds of thousands of milk crates a year. At $4 a piece, it was half a million dollars.