Savoirtech
Heath Kesler is an open source software evangelist, developer and architect; he has created Java architectures for large scalable, high transaction load systems for many fortune 100 companies. Heath has spoken at conferences all over the world and was selected as a 2012 JavaOne Rockstar.
He is an active contributor to several Apache frameworks and a committer on Karaf. He is co-author of the book "Learning Apache Karaf" and "Karaf Cookbook".