Junjun Zhang

Junjun Zhang is the Director of Architecture at Express Technology Service (Hangzhou) Co. Ltd., bringing two decades of experience in IT. Previously, Junjun held key roles at American Express as a Solution Director, Deutsche Bank as a Technical Architect, and Lianlian Pay Inc. as the Director of Cross Border Payment Technologies. Junjun specializes in application middleware, messaging middleware, and technical architecture, demonstrating expertise in developing high-availability solutions and enterprise applications. They have also contributed to significant infrastructure upgrades and the development of monitoring tools that reduced operational risks.