Used Laravel to develop backend system. Used Docker as local develop environment. PHP Team Leader, PHP team has up to 3 peoples. Maintained the old system of sports award source center. Used GitLab and Jenkins handle CI/CD process. Lead the team to develop a new lottery system. Used PHP extension Swoole to optimize Laravel performace (24 times the qps) . High concurrent transaction architecture development. Team industry knowledge guidance. Used PHPUnit to steady all system service. Used PHP extension Xdebug to check unit test coverage , Increas...