- Design and Implement LINE TV Android application architecture, player library, tracking framework. - Design product database schema for purchase, genre tagging and content system. - Design and implement LINE TV cloud native content search system based on AWS. - Design disaster recovery and backup architecture based on AWS. - Solving iOS safari cannot play encrypted video. - Design and implement load test when migrating from Choco TV to LINE TV. - Transform database schema ERD into real examples for non-technical team members. - Design mobile UI testing flow with Appium and Behave.

- Mobile UI Testing with Xamarin Calabash. - Design and develop a large-scaled push notification service based on AWS. e.g. 玉山銀行, 永豐銀行, ZyXEL - VPN appliance and management console with Softether and Beego. - Android application architecting and development. e.g. 7-11, Open小將, 永慶房屋, 玉山銀行, 永豐銀行, ZyXEL... - Web application architecture developing e.g. 鳥類圖鑑查詢系統, Google Gadget - Technical support