JIMMY CHENG

• Join new department "Custom Service Team" in Shopline, providing custom service for key accounts
• Introduced several enhancements, including Terraform script, CI/CD pipeline process, service monitoring, log rotation, unit test
• Introduced Express.js framework into Lambda function, planning to migrate to container based solution

• Collect requirements from merchants, abstract the business logic, and build product for everyone
• In charge of product planning, system designing, task arrangement, developing, and maintaining

• O2O QR Code Redemption Service
  • Solution for clients to order on eShop, redeem in realistic shop
  • Flexible, multiple scenario to fit several kinds of merchants requirements, e.g. Retailer, Department Store, Social E-Commerce
  • Have 5 activity merchants, published 30k redeem coupons
• Product multi-variation images for eShop
  • A plugin for eShop to have multiple images in variation product
  • Have 5 activity merchants

• Backend service maintenance, new feature development
• Contributed to lots of documentations e.g. implementation guideline, troubleshooting, knowledge base
• Working closely with remote team members located in New York, Hong Kong and Singapore

• The goal is to improve API stability, I'm in charge of staging environment creation with production infrastructure specification
• Do load testing to know current service capacity, with nearing-production data
• Make script to enable/disable all infra, reduce cost

• The goal is to collect our service fee accurately, and reduce manual tasks by automation
• Build new billing system with existing fee plans
• Build slack bot to generate specific report file, make finance team members can get the report on their own

• Tech stack: Node.js, Express.js, Gulp.js, React, Redux, Pug, MongoDB, Redis
• I'm in charge of back-end and front-end development

• Customer service system
  • Including chat room, analysis system and reporting system
  • Using Socket.io to communicate between client and server side
• Real-time chat system
  • Including landing page, admin dashboard and chat room
  • Using Socket.io to communicate between client and server side

• Tech stack: Golang, MySQL, Gulp.js
• Cooperate with front-end team and mobile application team

• Back-end API
  • Develop and maintain backend API
  • Optimize MySQL query
• Crawler service
  • Crawl target website periodically with task manager
  • Implemented data validation system, preventing fake results from spam websites
• API for iOS and Android App
  • Optimize response data content, decrease network throughput
  • Implemented mobile app version control system, can do live(hot) update, support app rollback without re-submitting for review

• Project management and business development

Contributed to outsourcing business

• Developed websites using WordPress (PHP + MySQL)
• Customize WordPress modules
• Design and develop front-end layout with WordPress theme system
• Developed payment gateway plugin for WooCommerce

• Developed plugins for Joomla's and WordPress