Building distributed data systems.2023-nowIssuing2022-2023We built platform that provides change stream capture (CDC) for all Stripe's DB offering, which improves end to end freshness by 750X and saved $X million per year2020-2022We built a highly scalable distributed OTLP system with high availability on Vitess and MySQL group replication. VTGR is the orchestration component that helps Vitess understand group replication.

Worked on ads delivery and ranking infrastructure

Worked on Search Infrastructure and Cortex (ML Platform) to power Twitter's recommendation systems.

Teaching assistant for 15319/15619 Cloud Computing.Designed and implemented Elasticity/Scaling and Analytics Engines projects (MapReduce, Spark, Kafka/Samza)

Worked at Data Platform team

Full-stack side project for an NGO

• Developing a library to enable the parsing from XML to JAVA object based on pull parsing, realizing bi-directional SOAP web service communication.• Implemented an Android library supporting pull parsing (improve efficiency by 10% comparing with a push parser)• Designed and implemented a reliable bi-direction communication between client and web service over HTTP.• Supporting dynamic web service calls over SOAP by reflection mechanism in Java for procedural invocations• Generated the library supporting more than 100 existing web API (growing) by code-generator in batch• Testing parsing and communication performance of the library on Android platform.

• Worked at VIT team with SAP systems