Poy Chang is a software developer from Taiwan. With more than 10 years of Software Development experience, focuses on develop and architect for the manufacturing industry. Poy loves to share his technical skills with community and maintains open source projects on GitHub. He also a core member of the technology community Study4 (http://study4.tw/). He organized the biggest technical conference with Study4 community ever done in 2019, .NET Conf. For 2 days conference has 500+ attendees and speakers attended.