• Built WebRTC calling experience from 0 to 1, across various lines of AR wearable products, supporting Family-of-apps (Messenger, Whatsapp, Instagram) on both Android and iOS platform.

• Led cross-functional collaboration to manage complex dependencies, ensuring seamless end-to-end support for wearable software and hardware

• Innovatively incorporate various tests to guard product reliability, including increasing unit tests coverage powered by Meta CodeCompose LLM; building Jest E2E test framework for daily use cases.

• Designed PREQ(performance, reliability, efficiency, quality) metrics for the team. Set up dashboards and alerts, continuously optimize them. Improved the top-line reliability metric from 60% to 98% in a year.

• Built debugging tool to help the org analysis crash report. It significantly increased eng efficiency by reducing the time to investigate bug reports from 10+ min to less than 1 minutes. More than 10 teams adopted the tool in their process.

Full-stack engineer at Instagram SMB Ads

• during pandemic, developed a COVID-19 info hub to help SMB on IG to find new opportunity to reach more customer

• migrated the ads feature on IG Android app from React Native to native Android, reduced first loading time 60%.

• led a series of projects to renovate and grow the team metrics significantly

Work on the Instagram Ads Team. build ads feature for Instagram mobile App.

Maintained website front end and back end of MatchVS official website using JavaEE on Linux environment.

Designed user account databases to allow users to sign in all websites of MatchVS, such as the official website and the forum website with JavaEE and PHP.

Led the team in designing business logic and database of the product for ordering train tickets

Developed an Android mobile application for ordering train tickets using Java on Android Studio.

Which included the implementation of queries, purchasing, paying and refunding functions.