- Designed and implemented the web components suite enhancing all payments and wallet operations. Iterated closely with product manager, UX designer, and other eng teams to ensure high quality. Integrating better with existing business applications, these components allow for a seamless and customized checkout and wallet management experience. Purchases using these components bring in $3.5B / year in revenue.- Owned the migration of legacy payments and wallet components, creating an end-to-end solution. Required a deep dive into the backends of purchasing and billing domains to identify necessary code changes and meet with POCs to align on solution.- Designed and implemented a front-end solution for payments using 2FA, increasing security and compliance. De-risked $70M in revenue from Indian customers.- Developed and maintained the legacy application responsible for all online purchases ($2B+ / year in revenue)- Optimized abstractions to accelerate web component adoption, reducing 2+ months of work per integration.- Streamlined checkout process, conducted A/B testing, resulting in a $2M annual revenue increase.- Proposed and led critical package upgrades, coordinating with 4 other teams for seamless integration.- Established A/B testing workflows, fostering collaboration between engineering, product, and data science teams.- Enhanced API performance by implementing caching, reducing latency by 25% and eliminating 5xx errors.- Mentored junior engineers in pair debugging, code reviews, and design doc feedback.- Maintained web accessibility standards, collaborating with UX designers to resolve issues.

- Leading development of front-end NodeJS apps which serve core shopping transactions (33M transactions /month, 45% of all global sales).- Solving large and difficult problems while revealing bugs and design flaws within front-end frameworks.- Collaborating with other teams to roll out applications seamlessly.- Scaling applications from 0% to 100% globally with server / client performance in mind.- Mentoring new hires through code reviews, pair programming, and daily discussions.

- Architected financial services hotline app for 8 countries in Central and South America.- Optimized manual application tuning process with Java to fetch and process data, making process 20x faster.- Connected user-facing web applications with SQL DBs using Spring REST web services.

- Implemented benefits hotline app rollout every year for US and Canada serving 1.4 million employees.- Integrated agent monitoring system, improving call center efficiency by 30%. [Employee of the Month - Dec 2012]