Payments Performance Modernization

Problem

The payments experience had to stay fast and reliable while supporting business-critical checkout improvements.

Payments flows need to feel instant and stay reliable because every extra second can affect conversion, support load, and customer trust.

Constraints

The work touched revenue-sensitive flows, so changes needed to reduce frontend weight without weakening reliability or delivery confidence.

My Role

Owned the frontend refactoring approach and kept performance, architecture, and delivery quality aligned across the checkout journey.

Decisions

• Split heavy paths with lazy loading so checkout users downloaded less code up front.
• Kept architecture boundaries clear while contributing to new payment methods and save-card capability.
• Used performance audits to keep technical changes connected to user and business outcomes.

Impact

Reduced bundle size by 60%, contributed to payment methods tied to a 25% sales lift, and supported save-card work tied to an additional 3% lift.