- develop programmatic advertising system (aka Real-time Bidding)- Nielsen Digital Ad Rating integration

After we launched the Salesforce integration for Sales Navigator, the size of team grew from 7 to 20+ engineers. We split the team into two teams and I became the manager of one of them. My contributions are:* lead the enterprise team which in charge of Sales Navigator 3rd party integration projects.* launched CRM widgets for Salesforce/Dynamics CRM which brings Sales Navigator user experience into CRM system.* launched Sales Navigator for GMail & Outlook.* launched Sales Navigator Community forum for better customer engagements.* launched Sales Navigator CRM Sync for Dynamics CRM.

After LinkedIn acquired Fliptop, I became the lead engineer for Sales Navigator CRM related features. I was involved with all design reviews and technology roadmap. My contributions are:* lead the migration project of Fliptop's CRM sync for LinkedIn's Sales Navigator.* successful launched CRM Sync for Sales Navigator with 2000+ customers in the first year with 30% growth YOY.* designed and implemented ROI report for Sales Navigator and reduced the churn rate by double digits* launched CRM writeback with enabled two way sync between Salesforce and Sales Navigator.* lead cross-system awareness project which maps external entities into LinkedIn member/company entities.Programming Environment: Scala, Java, Play+Dust, Rest.li, Kafka, Samza, Hive, Kubernetes

Fliptop PeopleGraph API is used to get complete social media identities about a person. Given an email address, PeopleGraph API would returns related social profiles from more than 50 social media.Contributions Include: * Transition of Fliptop's platform into elastic cloud based solution for large scale data processing. * Renovation of Fliptop's production environment and development tool chains.Programming Environment: Scala, Apache Storm, Ruby, Chef, AWS EC2, RDS, OpsWorks

A10 Networks is the market leader in hardware load balancing market. The AX Series provides enterprises and ISPs a high-performance and scalable application networking platform.Contributions: * Early architecture and prototype development for the next generation network management system and SDN product. Programming Environment: Scala, Akka, Riak, Cassandra, OpenStack

- developed scaleable LBS search platform in Scala and Akka.- developed mobile analytics platform with MySQL.- Implemented web-service API with Jersey, Spring, Metrics and MongoDB for external client..

Medio is the leading provider of mobile search and advertising solutions. The proprietary mobile SDK provides excellent rich application experience for feature phones.Contributions: * developed mobile UI SDK for middle and low end handsets. * developed and deployed mobile search portal sites for T-Mobile and Telus. * integrated click stream tracking into mobile portal sites.

• Lead a group of SDET to test web-service API using TestNG.• Created and maintained a xml based web testing framework used by 10+ testers.• Load testing and performance tuning with LoadRunner and YourKit profiler. • Tune a multimillion users web-service.• Support production issues with device partners.

• Manage and develop test automation framework for server projects• Write HttpUnit/DbUnit/JUnit/TestNG scripts to automate testing process• Design customized JMeter samplers to stress/performance test of server projects• Develop pyJMeterReport tool to analysis the load testing results (~1 million lines xml file)• Implement webservice cache engines in JAVA/PHP and boost webservice’s performance by 50 times• Implement a pluggable caching framework which can incorporate with ehcache and other JSR-107 products• Implement an agent based JMX server monitoring system to report realtime server status• Implement a J2EE security module to authorize, authenticate, and monitor user access• Design a hot deployment extension for anthill to automate deploying nightly builds to tomcat servers• Develop customized plug-ins for Nagios monitoring system using Python and JUnit.• Define an Agile like testing methodology and implement required tools• Define server release criteria

-Designed J2EE Workflow Management System-Surveyed J2EE Technology-Surveyed new software and hardware-Handled user problems and requests -Wrote networking operating rules, document for users and managers

-Developed a voice recognizing jukebox with Linux & IBM Via Voice SDK

-Studied UNIX login mechanism-Wrote a deception system (honey pot) to log wicked users (hackers)