Transformed an acquisition
into a full-fledged POS.

Led five major platform migrations, including a ground-up checkout redesign that improved first-time payments conversion by 24%.

Rewrote Square's print queue.
From the ground up.

Re-architected Square's iOS printing system — replacing a fragile, in-memory queue with a persistent, database-backed system that handles tens of millions of print jobs a week and cut printing-related support tickets in half.