# Yunong Liu

> Build to enable

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/yunong

## Work Experience
### Staff Software Engineer @ Airbnb
Jan 2025 – Present
API Gateway
- 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.

### Senior Software Engineer @ Airbnb
Jan 2019 – Jan 2025 | San Francisco Bay Area
API Gateway

### Software Engineer @ Uber
Jan 2018 – Jan 2019 | San Francisco Bay Area
Communication Data & Intelligence
- Spark, Flink, Golang
- Realtime ETL for data cleaning and enrichment using Flink
- End-to-end ETL pipeline refractor for engagement metrics collection

Growth Insight Platform
- Business Insight tool Maze
- Developed the backend and ingestion pipeline for funnel visualization tool Maze for business insights

### Software Engineer @ Yelp
Jan 2016 – Jan 2018 | San Francisco Bay Area
Revenue Team
- 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

### Infra Engineer Intern @ Ensighten
Jan 2015 – Jan 2015 | San Francisco Bay Area
• Used Puppet and Terraform to deploy infrastructure on AWS server box, adopted Puppet profile & roles module workflow with Git to make host-specific deployment clean and revertible
• 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

### Backend Software Developer Intern @ Elex-Tech
Jan 2013 – Jan 2013
• Designed a SQL query webpage for inner database query using PHP SQL interface, designed website style with HTML, CSS and JavaScript
• Used regular expression to automate website content localization given more than 20 languages translation data
• Validated payment system by boundary test, eliminated coding bugs for integer overflow


## Education
### Master's Degree in Electrical and Computer Engineering
Cornell University Graduate School

### Bachelor's Degree in School of Automation Science and Electrical Engineering(SASEE)
Beihang University

### University of California, Berkeley

### High School
Tianjin Yaohua High School


## Contact & Social
- LinkedIn: https://linkedin.com/in/yunongliu
- GitHub: https://github.com/autolab2013

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Source: https://flows.cv/yunong
JSON Resume: https://flows.cv/yunong/resume.json
Last updated: 2026-03-31