• Designed and implemented the company’s feed ingestion framework which greatly improved the on-boarding process of third-party content providers• Key developer and maintainer of the company’s video ingestion pipeline, content management system and backend web services.• Took over the maintenance of the company’s search project with little to no documentation.• Looked after clusters running on both OpenStack and docker.• Migrated the team’s CI stack to docker which is 12x faster in loading the building environment compared to the old solution.• Solved all kinds of complex bugs and performance issues.• Provided technical support to other teams from day to day.

• Developed new features, maintained and implemented the team’s products and services• Worked across the full stack on the system• Solved complex bugs and performance issues• Ensured that software developed provided a good user experience• Assisted with infrastructure improvement• Ensured that software developed provided a good user experience

• Worked as the main developer of the company’s music streaming product, responsible for the re-architecture and implementation of the system’s backend APIs, most of the web frontend, the iOS version with Apache Cordova, and product release management.• Improved the backend system architecture by integrating composer, Doctrine and other modern PHP - libraries to CodeIgniter for better database schema migration and rapid development support.• Implemented the web service APIs for web, android, and iOS frontends.• Conducted system load testing, SQL query optimisation, and added cache layers to ensure the system met the performance requirements.• Re-designed the web frontend architecture using Knockout Components, RequireJS, Bower, and Gulp.• Documented API specification as well as deployment instructions for the ICT team• Ported the web frontend code to Apache Cordova as a quick solution for an iOS version of the streaming app.

Led a 10-member team to develop, deploy and improve the regional portal website in Anhui China, 365jia.cn, which consists of a large number of symfony modules, serving over 1 million visitors each day.• Established the development infrastructure• Conducted comprehensive business analysis and provide technical solutions to meet critical business requirements.• Identified system bottlenecks and carry out performance tuning on a regular basis, ensuring a quick- responsive system for the end users.• Provided solutions to tricky technical problems.• Helped team members improve their code quality by performing code review on a regular basis.• Implemented key system components, such as the cache layer, authentication and authorisationmodules, and a global configuration framework.• Designed and implemented a scalable multi-tier production network infrastructure for the website,which has dozens of servers mainly running Varnish, Nginx, php-fpm, MySQL, RabbitMQ, Mongodb,Apache Solr, Redis, and Memcached.• Migrated critical system modules from Symfony 1.0 to Symfony 2.• Implemented a network monitoring system with Munin, Nagios and Gnokii.• Implemented an automatic remote backup system

Played a key role in creating the event system for the company’s flagship social network product which had over 2,000,000 users.- Located and fixed bugs in the website- Gave nice solutions to tricky php and db problems- Improved and refactored existing code- Developed an event system which was a big and important feature for the website- Upgraded the event system along with other system modules from Symfony 1.0 to 1.2

Led a 5-member team to build and improve goodjobs.cn, the largest online recruitment website of Anhui province in China. During my employment, the number of registered members grew from 20,000 to 1.5 million.- Set up the development infrastructure- Designed system architecture and improved it as the database and traffic grew.- Arranged project development plans and oversaw the development process.- Involved in developing critical parts of the system.- Deployed and maintained the website on Linux servers.- Continuously improved the overall system performance by identifying bottlenecks and performing optimisation from the server level to the code level.- Helped set up the IT infrastructure of the company.

Led the development of the website goodjobs.cn, which later became the largest online recruitment website in Anhui province.- Worked as the sole developer during the first year and developed the website from scratch on LAMP platform.- Became the lead developer and project leader of the website the second year after the website achieved a milestone of 20,000 users and the company hired 3 full-time developers to work on the project.- Responsible for linux server deployment and administration.Note that the company was later renamed to Anhui Wang Cai Info Tech Co., Ltd. after being acquired in 2007 by Saon Group, a world leader in online recruitment.