You have financial data and no good way to look at it. Maybe it's transaction exports, payment records, or numbers spread across a bank portal and three spreadsheets. You need a real interface — one that does the calculation correctly and shows its work.

That's what I build. Not a chart library pointed at a CSV, but an actual application: data ingestion that survives messy real-world exports, calculation logic you can verify, and an interface someone will still be using in six months.

Founders, fintech teams, and finance-adjacent businesses who need a working tool rather than a design mockup. Especially useful if your calculation logic is the hard part — fee structures, tax tiers, multi-currency, burn and runway.

Scope call. You show me the data and describe the decision the tool needs to support. Most of the value gets decided here — a dashboard that answers the wrong question is expensive no matter how it looks.

Data model and calculation logic first. I get the math right and verifiable before any interface exists. Financial tools live or die on whether a user can interrogate a number they don't trust.

Interface build. Responsive, fast, built around the one thing you actually need to see.

Handoff. Deployed, with the code and a walkthrough of how the calculations work.

I build financial tools that explain themselves. Every number a user sees can be traced back to the inputs that produced it — no black boxes, no "trust me" figures. That principle runs through everything in my portfolio, and it's the reason these tools get used rather than opened once and abandoned.