Over 2 years of experience in building blockchain solutions and applications using Solidity, Web3.js, Ether.js, Truffle, Hardhat, JavaScript, TypeScript, and Node.js.Over 4 years of experience in developing backend APIs and services for Web 2 applications and, more recently, for Web3 using Node.js, Express, NestJS, and MongoDB with Javscript, Typescript also with docker, kubernetes.Over 7 years of experience as a Programmer Team Leader, R&D Team Leader, and Division Leader. Led and supervised the successful development and maintenance of multiple mobile games in the market while providing mentorship to team members for their career growth at Gameloft Ha Noi, using Java, C/C++, JavaScript, and with many various game engine.