Tech lead for Airbnb's paved-path WebSocket gateway, driving real-time infrastructure and platform modernization. Enabled GraphQL subscriptions, supported major product launches like messaging and more

Domain expert for gateway routing, leading the development of the next-gen routing engine.

Spark, Flink, Golang

Realtime ETL for data cleaning and enrichment using Flink

End-to-end ETL pipeline refractor for engagement metrics collection

Business Insight tool Maze

Developed the backend and ingestion pipeline for funnel visualization tool Maze for business insights

Python & MySQL & AWS

Built distributed online order processing system with AWS Simple Workflow and Step Function

Implemented billing features such as cost forecasting for advertisers

Wrote script for smart-loading configuration under different lifecycles by regular expression matching in AWS credential and Terraform bootstrap JSON files, reduced mis-configuration greatly among teammates

Set up open source tool Skyline as intrusion detection system for team by feeding data from existing Graphite monitoring system, featured in detecting anomaly automatically without setting threshold