Highlight

Reduced end-to-end processing time from ~8 min to ~2 min, making the processing 4x faster by restructuring execution strategy, parallelizing integrations, and improving async processing in critical payment flows.

Designed and implemented Recurring PIX after market analysis and product opportunity assessment, contributing to a ~70% increase in sales and scaling recurring subscriptions from ~300 to over 6,000.

Built an international sales flow integrated with the European operation, implementing end-to-end communication between systems from onboarding through transaction completion.

Reduced production incidents by ~40% through immediate mitigation, root cause analysis, and permanent fixes, improving the stability and reliability of critical payment services.

Refactored an authentication system into a webhook-based architecture, reducing user drop-off across signup and login flows by ~80%.