# Leo Liu > ex-Databricks | ex-Facebook Location: Santa Clara, California, United States Profile: https://flows.cv/leoliu Passionate about building large scale system ## Work Experience ### Software Engineer @ Sierra Jan 2025 – Present | San Francisco Bay Area ### Staff Software Engineer @ Databricks Jan 2021 – Jan 2025 ### Senior Software Engineer @ Facebook Jan 2019 – Jan 2021 | United States ### Software Engineer @ Facebook Jan 2016 – Jan 2018 | Menlo Park - Core developer/Product owner of entire push notification (on Android/IOS/Chrome/Firefox etc.) delivery pipeline supporting FB, Messenger, Instagram etc. Average traffic: 350M/min requests - Core developer of a fanout system supporting 100M broadcast within 10s. ### Senior Software Engineer @ Akamai Technologies Jan 2016 – Jan 2016 | Santa Clara 1. Design and implement a read-optimized mechanism to support HTTP2 server push. ### System Software Engineer @ Akamai Technologies Jan 2014 – Jan 2016 | Santa Clara 1. Investigate and improve implementation of HTTP2 stream prioritization 2. Develop a framework to monitor runtime memory usage of HTTP2 objects. 3. Implement streams garbage collection for HTTP2 streams. 4. Extend OpenSSL Session Ticket to support Application Layer data appending. 5. Investigate problems and fix bugs in various aspects, e.g.: spdy, http2, TLS etc. ## Education ### Bachelor's degree in Computer Software Engineering Shanghai Jiao Tong University ### Master's degree in Computer Science University of Southern California ## Contact & Social - LinkedIn: https://linkedin.com/in/leo-liu-81027252 --- Source: https://flows.cv/leoliu JSON Resume: https://flows.cv/leoliu/resume.json Last updated: 2026-04-11