Zhidong Liu's Email & Phone Number

💼 Past Experience

Zhidong Liu has experience working in the following industries: Software Engineer, Cloud Developer, and rule engine test tester.

🎓 Education

Zhidong Liu's Educational Background:Zhidong Liu has a Master's of Engineering (MEng), Electrical and Computer Engineering from Cornell University in 2015. He also has a Bachelor of Engineering (BEng), Electronic and Electrical Engineering from University of Birmingham in 2014. Liu has a Bachelor's degree in Electroincs and Information Engineering from Huazhong University of Science and Technology in 2011.

💡 Technical & Interpersonal Skills

Zhidong Liu's work experience:Software Engineer at Snapchat, Inc.Zhidong Liu is currently a Software Engineer at Snapchat, Inc in Greater Los Angeles Area. Work in Spam&Abuse/Client Hardening team. Keep Snapchat clean!- Hardened Snapchat client through a set of low-level solutions.- Helped Server side abuser defense with Rule-based detection and offline analysis with machine learning model.- Built monitoring system with React&Redux to better control and collect feedback of defense. Cloud Team Internship (Fully involved in feature development from testing to staging and production) at ZingBox Inc. from May 2016 to August 2016 (4 months) in Mountain View, CA. 1. Designed and implemented the auto blocking feature. Wrote an offline daemon to get malicious device info from Elasticsearch index, generate and push the black list into run time system. Alerts will also be sent to system admin and end users2. Implemented key metrics monitoring using Logstash. Metrics are pulled from millions of logs and critical alert will be sent to slack channel for warning3. Wrote Logrotate configure files to rotate huge log files on more than 200 servers4. Implemented a Nagios plugin to monitor data lag in Spark streaming processing5. Tested all Restful API using NodeJS, Mocha, Supertest and Json-schema. Designed scale test for Rule Engine by simulating thousands of fake sessions.