Cheng YAO

Healthy 365 is a mobile app by Health Promotion Board. It has modularized design and has the capability to 'plug-in' different moudule include native, React Native and even flutter.

• Upgrade React Native and related dependencies to latest stable version.
• Spike a solution to integrate (plug) React Native in a pure way (without npm, Cocoapods only)
• Swift, Objective-C, React Native, Java, NodeJS

Cheng worked as Lead/PM role for OMJ AMS interfaces project, he worked closely with multiple product owners from different departments, communicated with 17 agencies for migration plans, and coordinated resources with the delivery team.

• Not full-time developer.
• Steakholder management, client facing skills and communication skills get improved.
• Kotlin, Springboot, AWS

Cheng was assigned as tech lead for the period of 6 months and worked closely with the client to build a tool which all of its various businesses and dealers could use to easily manage customers' financial plans. He helped to design the architecture and make integrations for SSO (SAML & OAuth). sync data between various systems and distributed database, including customer information, financial contracts. He also implemented caching to improve the performance of the application.

• Java, SpringBoot, React, SAML, OAuth, MySQL

Cheng worked as an iOS Tech Lead, helping the client to refactor their iOS mobile app, introduced unit tests and e2e tests to the team, set up the pipeline for continuous integration, and improved non-crash rates from 94% to 99.5%.

• iOS, Swift, NodeJS, OAuth

Porsche website and services are hosted in Germany IDC (partially on AWS cloud), customers in China are experienced slow connection and sometime unreachable. Cheng as the team lead is to help Porsche China to setup the infrastructure on AWS China, and build the first Porsche China application - Service Appointment Booking as a proof of concept.

• Setup infrastructure on AWS China.
• Connect Porsche ID (porsche customer account system) with Wechat ID through OpenID Connect.
• Mutual SSL to secure connection between China and Germany.
• Collaborate with Porsche development team in Germany to get resources for multiple system integrations.
• Build service apppintment booking applicaiton
• React, Redux, Java, SpringBoot, AWS, SAML, OAuth, MySQL

REA is the leading property platform in the market, REA iOS App is the most popular mobile property application in Australia. We set up a new team in Xi’an in Sep, 2015 and worked remotely with the Melbourne team to build the best mobile property application.

• Manage the 4-8 members in Xi’an to collaborate with Melbourne team
• Migrate to Swift
• Use Realm to replace Core Data
• Adopt new features like rich push notifications.
• Swift, Objective-C, CoreData, Realm, Cocoapods