Edward Callahan is an accomplished open source software engineer and consultant living in the San Francisco Bay Area. Currently with Typesafe, Edward was the Scrum Master and a core contributor to the WaveMaker project in VMware's SpringSource division. He led the formation of the WaveMaker developer community and has written countless forum posts, examples, and wiki articles about its development. Prior to joining WaveMaker, he was a Senior Manager of technical support for Progress Software's Enterprise Infrastructure Division. He completed his education at Worcester Polytechnic Institute and Northeastern University.