• Developed innovative Facebook GenAI products leveraging Feeds & Comments infrastructure to enhance user interaction.

• (FB Comments) Drove Meta AI invocation for context-based responses, including fact-checking and web-search enhancements.

• (FB Comments) Designed AI-driven suggestions for user comments, improving engagement through context-aware responses.

• (FB Feeds) Collaborated with cross-functional teams to promote Meta AI through image-based and multimodal ads, driving user engagement.

eCommerce - Seller Platform

"Climate Pledge Friendly" program - (2022, 2023)

• Boosted the system capacity by 10x for 2022 Amazon Prime Day, and operated it at high availability

• Expanded the program scope by developing developer APIs to Amazon selling partners

• Launched the program in 9 new marketplaces

• Led the team on achieving sustainable operational efficiency / reducing operational burden

• (Java/JavaScript/AWS/System Performance/Scalability/OpenAPI)

"BOM (bill of materials) search" SPA - (2021, 2022)

• Built a low-latency authN+authZ mechanism for our APIs, which compliant with OIDC and OAuth-2.0

• Reduced the auth token refreshing by 60%, and integrated the authN+authZ mechanism with internal permission control systems

• (React/AWS-IAM/AWS-Cognito/LDAP/POSIX/CORS)

Waste and Donation Data Dataset & Platform - (2020, 2021)

• Built data pipeline infrastructure including ETL jobs, and automated data collection process from 3rd parties and each Amazon FC, to provide datasets in uniform baseline

• Visualized datasets with AWS server-less query engine and QuickSight and to track business goals month over month

• (AWS-S3/Lambda/EFS/Glue/Athena/QuickSight)

"Frustration-Free Packaging" (FFP), "Ship In it's Own Container" (SIOC) program -

• Mitigated over 80% of Pack Non-compliance issue at Amazon fulfillment centers by designing an asynchronous native-AWS data pipeline solution (2020)

• Reduced over 2 billion shipping boxes since 2019, with an average of 15% year-over-year growth by building the next-generation Packaging Certification platform in native-AWS architecture, to improve overall scalability and engage more Amazon vendors on packaging optimization (2019)

• Migrated over 30 APIs along with the service database from Oracle (MyBatis, Oracle SQL) to AWS Aurora (MySQL) with limited down-time (2018)

• Stabilized the system on the operation side with initiatives and plans to achieve business goals (2017-2020)