Maintaining, developing new features, and actively resolving production issues on a large scale distributed advertisement targeting system with peak QPS around 4000.* Refactor and raise robustness of legacy system* Implement various observability solutions for production environment with complex traffic pattern.* Construct Data pipeline (ETL) for intricate data lake with Hadoop ecosystem.* Maintain CI/CD pipeline for hybrid-cloud system.

*Develop security-scan/internal site Backend and Frontend with Java (Springboot) & React *Design & develop a CQRS-motivated Java library for micro services*Develop scan-task processing pipeline using Golang*Writing Unit-tests to enhance code quality. (both FE & BE)*Manage Cloud Environment using MS Azure Build up CI/CD pipeline from scratch Survey & *Conduct new engineering practice with others (DDD, Mono repo...)*Write technical articles to promote company's engineer culture

Develop and publish a multi-player game for Steam & Switch ( with a team of 4 people) Build Core-game mechanism using C# & UnityYou may refer to : https://store.steampowered.com/app/1175720/_/

Deep Learning related-research

負責遊戲素材的壓縮演算法開發 (Texture Atlas)、遊戲底層繪圖架構的變更、遊戲特效的shader撰寫以及Google App Engine 上的Server功能撰寫、以及串接第三方廣告商APILightning RangersApp Store: https://itunes.apple.com/tw/app/lightning-rangers/id1178546553Google Play: https://play.google.com/store/apps/details?id=com.uwan.lightningrangers