David has worked in the internet web technology industry since 2004, and has extensive experience in the IT field as a web engineer, team leader, technical project manager. He currently works for PayPal, exploring cutting edge Web technologies from back-end to front-end; from infrastructure to DevOps; from Public cloud platforms to Mixed Reality. David holds a BA degree from China in Management majoring in Information System and Information Management. He holds PMI certified project management professional and SCRUM alliance certified SCRUM master. David advocates ethical awareness, gender equality, diversity and inclusion culture in technical organizations, and enjoys mentoring young people who are new in the IT field.