Darrel has more than 20 years of experience in building distributed business applications on the Microsoft platform. For the last 10 years he has focused on getting the most out of HTTP as a distributed application protocol for building rich business applications. He is recognized as an industry expert on the use of HTTP, REST and Hypermedia to build connected systems. More recently Darrel has been speaking at conferences world-wide about HTTP and REST APIs. He is a published O'Reilly author and prolific writer of technical blog posts. He is actively involved in contributing to OSS projects, those he has created and others. Darrel enjoys helping developers learn technical material, solve problems and help their users be more productive.