Chuoxian Yang

A complete battery renting and management system designated for electric bicycle riders to rent batteries and provide subsequent battery-related services. The project entailed:
• A cross-platform app implemented using Flutter covering iOS and Android for end users.
• An admin panel to allow the company operations team to manage batteries, users, orders, products, and miscellaneous settings.
• A back-end application implemented using Go and MongoDB.
• A battery management system (BMS) implemented using embedded C.
• A communication protocol between the battery management system and the Linux server.
• Leading a team of five people to evolve the project, adding new features, and so on.

Designed the UI/UX and architecture for a poker game platform developed with Cocos Creator and Go. It supports iOS, Android, and desktop web. It is a full-blown system that takes into account everything a commercial poker game system should have, including the following:
• Single Sign-on (SSO)
• Data security and validation
• Multi-platform support.
• DevOps and process automation
• iOS on-the-fly deployment for testing purposes
• iOS/Android native app hot updates

One of my favorite personal projects—a sports social app that helps soccer players find a nearby team or a teammate or organize team matches as a team captain. The user can build a team and manage that team; the user can also join other teams as a member and participate in team exercises or matches organized by the team captain. The app has an instant messaging function to help team members communicate with each other.

I designed a home page to introduce the product—Qiozu.com.

The back end is written in Node.js/Sails.js and MongoDB with an administration panel SPA implemented in AngularJS. The iOS app is written in Swift with dozens of third-party Objective-C libraries. I'm still working on its Android version at the moment.

Testing user account for the iOS app:
username: ycx1;
password: 123456.

A popular Chinese four-player poker game that utilizes AngularJS and Phaser.io for the front-end development, Socket.IO for real-time communication, and Sails.js and MongoDB for the back-end development.

A platform that provides vehicle renting and transportation for clients in different cities around the globe.
Technologies used: Go, Redis, CI/CD, Google Cloud, Jenkins, Docker, unit tests, and acceptance tests.

This is a complete eCommerce system running live for a Chinese client. It uses PHP/Laravel and MySQL for the back end and AngularJS for the administration panel front end. Deployed it for demo purposes on an Ubuntu 14.04 VPS server with Nginx, MySQL, and PHP7-FPM.

Testing user account:
username: admin;
password: 123456.

An ink presetting system for commercial printing machines built upon embedded Linux with ARM chip and customized hardware to track battery percentage.
The software uses Qt C++ for the user interface and core functionalities and C for the embedded Linux driver.

A technical article about the basics of Node.js and a horizontal comparison between prevalent Node.js frameworks.

This article is meant to help developers decide which framework to pick to boost development speed.

An agency CMS for Chinese travelers and high school students preparing to study abroad, developed using Angular 2, Express.js, MongoDB, and Redis.

Demo login account:
email: admin@test.com;
password: 123456.

A web application designated to optimize the inventory and product management for the Cannabis eCommerce system. I'm in charge of:
• developing back-end APIs and logic
• tracking progress and fixing bugs using report tools like Jira
• working with other Toptal developers/project managers to better shape the application
• reporting daily following the strict AGILE development procedure