Develop game mechanism / Integrate SteamVR, OpenXR and Vive TrackerUnreal Engine 4/5, Flutter, Rust- Shipped 2 brand-new full-body, free-roam multiplayer VR games- Expanded 2 existed games played by tens of thousands of players- Developed Flutter web app scoreboard to display scores from all games- Developed Flutter Windows app to control multiple PC agents- Developed web portal to integrate Ready Player Me avatar creation to existed game

Build high-quality web/mobile apps to meet clients’ requirementsReact, Node.js, Next.js, Nest.js, Flutter- Built 1 full-stack web app for news/jobs posting forum using Node.js and Web Component- Built 1 full-stack web app for internal webinar platform using Next.js, Nest.js and tRPC- Built 1 cross-platform mobile app for social fitness using Flutter- Built 1 companion app for Android tablet connecting to exercise machine with USB cable, controlling motor resistance through PCB- Built 2 real escape games using React with custom stage configuration for assets and text content

Develop products / Build infrastructure / Manage network / Create internal tools / Make technical decisionsReact, React Native, Node.js, Flutter- Served 100+ users in a single community with a dedicated mobile app- Served 1500+ students in a university with 8 dormitories with a package notifier web app and a receiver mobile app- Built official websites and web apps for my startup using React and Node.js- Built 2 cross-platform mobile apps using React Native and Flutter- Developed a watermark web service for users to upload images with my startup’s branding- Developed an open-source project to render QR code for React Native

Write high-performance front-end code / Adopt new technologiesVanilla JavaScript, jQuery, Cordova- Managed 3 web apps for different Futures Exchange services API- Optimized high-rate ticking trading web apps- Specialized in DOM manipulation using Vanilla JavaScript and jQuery- Integrated Cordova to build hybrid apps for Android and iOS platforms