I am a data structure and algorithm expert who has won numerous entries in the ICPC and the IOI, and I am a professional OCR expert who have much experience there. I have 10+ years of experience in web development especially AngularJS, Angular2, 4, 5 and React.js for front-end and Node.js, Express, Socket.IO for back-end. Also I have good knowledge of video and image editing using many libraries, such as FFMpeg. I am very familiar with JavaScript, TypeScript, ES6, PHP, Python, MySQL that are related to web development. Throughout my career, I have developed so many web apps. I can share my previous work with you anytime.