about.
I’m Zach. I build tools for the small, repetitive problems I keep running into — often somewhere between my grocery cart and dinner.
My day job means digging into messy systems, checking what the data actually says, and working with a team to get a fix through. I bring that same curiosity to my own projects, where I choose the problem and build the tool. The client work below is about bank remediation; the projects on this site are independent builds, often starting with something bothering me. Like half a produce box going in the trash.
the day job (“client work”)
By day I consult for a top-5 card issuer on remediation — finding issues in the functions you’d assume a bank had nailed down: APR, rewards, settlements, minimum payments. We scope the issue, validate the affected population so no one gets missed, and deploy the fix so it doesn’t happen again. Then we make the harmed customers whole — money back, credit-bureau reporting corrected.
So far that work has turned up issues across millions of accounts, including cost leakage in legacy payment logic I found by reading the SQL directly.
It takes a lot of analysis, which I enjoy. It takes just as much translation — making complex analytical ideas accessible to people with real domain expertise but less analytics background, and building consensus to push a fix through a bank.
building community wherever I work
I’m chief of staff to our 70-person advanced analytics group, and I run our office’s training program — 500+ people trained, increasingly on AI.
I taught our firm’s AI crash course during its national upskilling push. My favorite moment is when the epiphany lands: someone who’d never touched AI suddenly sees what it can do for their everyday work.