As senior developer, have rich experiences on UX/UI design, Backend, Frontend, Serverless, SAAS, Booking, Auction, eCommerce, Real Estate, Scraping, Social Site and so on... And have skills on HTML, CSS, Javascript, Ajax, JQuery, Angular, React, Vue.js, Node.js, Express.js PHP, Laravel, Codeignitor, Amazon(EC2, Lambda, Elastic Bean), Digital Ocean, Google Firebase, Nova, MySQL, Postgresql, Sqlite, MariaDB, MongoDB, DynamoDB, Redis, Cassandra, GraphQL, Socket.io, WebRTC and so on...