Re-designed and implemented WebRTC flow in our system, increase 80% performance. Maintain and develop ReactNative and MQTT services which communicate to hubs/cameras. Monitor K8S services and integrate chatbot in slack.

Re-designed and implemented ETL server to increase 400% performance, using Postgresql server, python and tableau. Designed and build up GraphQL service, using postgraphile. Designed and implemented CI/CD flow for python application using unicorn and Jenkins. Implemented CDC with kafka connector sink. Re-designed and improve our sales workflow, and save their time.

Developed vedio/audio service solution using Golang and GRPC Designed and implemented application for network cache and authentication using Nginx and Lua. Developed vedio/audio service solution using Elixir. Designed and implemented AWS Cloudformation, AWS OpsWorks for CI/CD work flow, auto scale, quick build env. Implement new features using PHP. Wrote PHP Unit test, for upgrating from PHP5 to PHP7. Fork AWS ElasticCache auto discovery project for PHP 7.1.(official only support PHP 7.0). Made a presentation about AWS Serverless, AWS ECS, AWS Deploy flow for internal sharing.

Designed and developed application using Golang and Websocket. Building project prototype on native app, web, mobile web. Designed and developed CMS application using .NET.

Team lead of public API team Designed and developed custom card system. Designed and Developed Web crawler using Golang.

Maintained and developed Web revamp, include RWD, performance tuning(reducing 30% js file size, speed up loading speed) Designed and Developed Google Analytics Helping System, include pulling data from web, create report, send mail.

Developed official repair-service using ASP. Developed hunman power service, internal workflow system using ASP. Developed reporting serivce using T-SQL.