Fei Xiang Y.

A little about me... Hi, I'm a Freelancer with over 7 Years of FullStack development experience. Also, I am a BlockChain developer with more than 3 years of experience. Most times you find a person who specializes in one or the other and then you need to find a second developer to get your project done. But... you're in luck because you just found a one-stop-shop! I've worked on everything from Small Web Apps for businesses to Enterprise Sized Web Platforms. 1. Web developement:: - backend : Nest.js, Express.js, Laravel, Codeignitor, Django, Flask, AWS lambda, ASP.NET, [login to view URL], Mqtt - frontend : React.js, Next.js, Material UI, HTML5, tailwind CSS, SCSS - database: MongoDB, MySQL DB, AWS DynamoDB, Firebase, Redis... - wordpress, bubble, webflow full stack development - several hosting(aws, azure, bluehost, godady, ...), CI/CD, docker, Kubernetes 2. Mobile app development:: - iOS (Flutter/ ReactNative/Swift) | Android (Flutter / ReactNative/JAVA / Kotlin) - OOP, FRP, Protocol Oriented Programming, Reactive Programming - Architecture Patterns: MVC, MVP, MVVM, Viper, Clean Swift, RxSwift, RxJava, GAA - 3rd party frameworks for iOS and Android - Understanding & ability to leverage iOS and Android features - JSON, REST API - Push notifications - Complex animations & responsive UI - Build chat applications - Git (Github / Gitlab / Bitbucket) - CloudKit, Firebase, Realm, CoreData, SQLite - iOS & Android SDK - iBeacons / Bluetooth / IoT Mobile Apps - Geolocation & Maps 3. BlockChain development:: - Smart contract development( Language: Solidity, Solana, Framework: Truffle, Hardhat, Anchor, Kind: DeFi, NFT) - Dapp development(Typescript, React.js, web3.js, ether.js) 4. IOT product design and development - ESP, PIC, ARM, STM series, embedded code development, PCB layout design - Communication Core server development, Admin web, User mobile app development, - IOT infra and data flow design.