Highlights

Reduced end-to-end processing time from ~8 min to ~2 min (4x faster) by optimizing execution strategies, parallelizing integrations, and improving asynchronous processing in critical payment systems.

Designed and implemented Recurring Pix, contributing to a ~70% increase in sales and scaling recurring subscriptions from ~300 to over 6,000.

Engineered an international sales flow integrated with European operations, enabling seamless end-to-end communication between systems, from customer onboarding to transaction completion.

Reduced production incidents by ~40% through rapid incident response, root cause analysis, and permanent fixes, strengthening the reliability of critical payment services.

Redesigned an authentication system using a webhook-driven architecture, reducing user drop-off during signup and login by ~80%.