•Re-branded iStock website to orbitalyang.com. Serving around 200+ VIP members daily. • Design a WebSocket communication protocol between quoting server and frontend. • Integrated with WordPress to host 200+ technical articles and videos. • Integrated with 3rd cash service to provide credit card and ATM transaction. • Designed a free web service about Taiwan stock - iStock. To provide a real-time pricing and analysis of Taiwan stocks. • Managed database for daily trade data (2019/02/18 - 2020)

Pricing Data Lake & Pricing API (2022.6-): provide medical prices data with a cost-effective and fast querying API. • Responsible for data ingestion, data validation, data pipeline automation and data testing. • Led to design an efficient parser to solve a critical problem of large file ingestion. Ingesting files without out-of-memory issue (size 100GB -1TB/per file, peek memory used 50MB). Enhanced ingestion speed 192x compared to previous design. • Led to design an automation data pipeline. Monthly ingesting 17 customers’ data and generating 30+TB parquet data. Reduce 30% AWS cost of idling tasks and 95% human involvement. Shop Book and Pay (2019-2022.6): serve hospitals to build shop sites for searching and buying medical services. • Implement a pricing data ingestion system with .NET Core, Azure Functions, Blob Storage, and Service Bus. • Used Adobe Experience Manager (AEM) and ReactJS to host 70 shop sites.

SmartChoice: an intelligent building web platform to manage sub-systems and IoT devices. • Responsible for backend, frontend and database design and development. • Started from scratch to use C# .Net MVC, AngularJS, and SQL Server to implement intelligent building web platform. • Designed and implemented 90% services of platform. • Deployed platform into 3 industrial buildings those earned with Smart Building Silver Mark.

For 2 months short-term intern in ITRI, recommend by my advisor, Dr. Chang. We train a word tag classification model system, using wiki title and group tag. This model can have 75%-85% accuracy to predict a word to mapping groups.

Develop and maintain Intranet system website.