– Mentoring frontend engineers

– Tech lead on building multi-media ReactNative applications on Devices org. Design and create mono-repo to create Multiplatform application (Mobile, Web, TV, Tablet)

– Create cross-team and cross-platform ReactNative libraries (Metrics, Authentication, onboarding, Profile components etc)

– Bootstrapped the application architecture with ReactNative / KMM (Kotlin Multiplatform) and native Swift. Implemented core features(authentication, profile management, App sync integration etc.)

– Build functional prototype Amp using ReactNative

– Tech design and build ReactNative component in Amazon iOS

app for Amazon Fresh

– Tech design and lead team to build Amazon Pay checkout v2

web experience (JRuby on Rails, TypeScript)

– Tech design and lead team to build Amazon Pay Mobile SDK

(based on WKWebview) on iOS

– Lead team to design solution for UI AB testing solution driving Amazon Pay R2C (render to click)

– Lead and build Amazon Pay JavaScript SDK for 3rd party merchants (more than 10k merchants' websites) (TypeScript)

– Optimize Amazon Pay JavaScript SDK performance (reducing tp90 latency)

– Mentoring and hiring UI engineers

– Initiate, design and lead team to reduce the buyer facing latency of Amazon Pay widgets by 70%

– Created internal macOS tool (Alfred plugin) used by more than 3k developers within Amazon

– Tech lead of AOS Analytics Front end team. Rebuilt and refactored the legacy codebase based on YUI3, created a more smooth development and test workflow for the team. Lifted the Javascript test coverage from 0% to 60%. Ensured the quality, stability and maintainability of the codebase.

– Work with product manager and UX team redesigned and

simplified whole product's information architecture.(report

query)

– Redesigned and implemented the product's "user preference"

feature.

– Created AcxiomJSLibrary based on YUI3. Build the whole toolchain of the AcxiomJSLibrary, which includes components structure generators, built tools, test runner, test coverage report and assets publish(to CDN).

– Built an entire reusable visualization chart library based on d3, which includes heat-map, line chart, bar chart and bullet chart etc.