Jeff Handley has been creating web applications for over 20 years. He grew up on the Microsoft stack but now focuses on Node, React, Redux, and GraphQL. Jeff is passionate about building large web applications that provide end-user productivity and delight. As Director of UI Engineering at SAP Concur, Jeff works with the teams that deliver the core UI components, the UI infrastructure, Concur’s corporate travel booking experience, and the SMB expense and invoice setup experience.

Jeff’s teams are distributed across the globe, with the group including teams in Bellevue, WA, USA; Prague, Czech Republic; and San Francisco, CA, USA. The group also has team members who work remotely from Vienna, VA, USA; San Jose, CA, USA; Eden Prairie, MN, USA; and Halifax, Nova Scotia, Canada.