* 10+ years of experiences in software requirement analysis, design, implement and product support.* Build and maintain backend services to support annual transactions of 9.8 billion $, and 5.2 million active accounts.* Lead a team of 3~10 engineers. * Lead the team to apply security-related changes in 140+ projects and communicate with more than 10 teams to meet the requirements within 6 months.* Drive and lead Shanghai team with the U.S. business teams about the requirement in English.* Heavily contributed to conversion of team to Agile Scrum including defining acceptance criteria, organized team to write code that can be 85% covered by unit tests.