• Chose technology stack.• Wrote training documents and built training system.• Recruit and trained core teams.• Advocate ZerusTech and the corresponding open source technologies in China. • Developed modern web apps with state-of-the-art technologies:　　◦ Use Gradle, Dagger, Spring Boot, JUnit, and Mockito, to develop Java apps. 　　◦ Use composer, Symfony or Laravel, PHPUnit, to develop modern PHP apps. 　　　◦ Use npm, Grunt, Babel, rollup.js, jQuery, React, Vue.js, Node.js, QUnit, and Sinon.js, to develop modern JavaScript apps.　　◦ Develop CMS ready websites with eZ Platform, WordPress, and Drupal; and eCommerce websites with Sylius.　　◦ Develop machine learning solutions using Apache Spark, HBase, Phoenix, and Hadoop. 　　◦ Develop responsive user interfaces with CSS3, HTML5, JavaScript, and Bootstrap. • Designed and deployed various architectures on GCP, AWS, and Alibaba Cloud:　　◦ Use load balancer and cluster for high performance and redundancy.　　◦ Accelerate web access with NoSQL database, Solr, content compression, asset subdomains, Redis and Memcached, HTTP cache headers, Varnish HTTP Cache, ESI, and CDN.　　◦ Use monolithic architecture for small to medium websites. 　　◦ Use SOA for traditional enterprise apps.　　◦ Use microservices for modern enterprise apps.　　◦ Use serverless for high-latency background tasks. • Led iterative, incremental development by applying Agile principles and Scrum practices. • Designed and implemented CI/CD processes by leveraging Git, unit testing frameworks, and Jenkins or Travis.• Applied a combination of democratic and coaching management style:　　◦ Work as a role model. 　　◦ Involve team members in making decisions.　　◦ Coach team members to solve problems independently.

led a team of 15 developers to build the UK Online for Business website for the UK government.

Developed fundamental components, including an HTTP/1.1 reverse proxy based on Java Socket, for a 401K related web application.