Things I've shipped.

The setup. Digistore24 moves about a billion dollars a year for people selling digital products. When I joined, every payment leaned on a patchwork of external processors with nothing in between: if one declined, the sale just died. I became the company’s first payments PM, which is a polite way of saying the plumbing became my problem.

What I built. The company’s first payment orchestration layer, routing every transaction by card, geography and risk, with automatic fallbacks when a processor says no. Then the rest of the stack: Apple Pay, Google Pay and Amazon Pay across the US and Europe, ten-plus new currencies, a rebuilt credit card flow replacing eleven-year-old code, and dispute automation that resolves chargebacks before a human has to look at them.

What changed. Failed payments now get a second chance instead of a funeral. Fallback routing alone has recovered over $6M in sales that would have quietly vanished, and authorization rates climbed roughly 15% with it. Wallets became some of the best-converting ways to pay, buyers pay in their own currency, and the ops team stopped triaging disputes by hand.