John Jacobs is an Architect with Credera (www.credera.com). He has over 10 years of experience developing Java/JEE applications for companies in the financial services, telecommunications, HR and non-profit industries. John is passionate about using open source technology and techniques like test-driven development to solve business problems. His focus areas include open source Java application frameworks like the Spring Framework and JBoss Seam, Service Oriented Architecture and agile/lean methodologies. Prior to joining Credera, John was a Senior Programmer/Analyst with USAA where he worked on high-volume banking applications on usaa.com. John is an avid snow skier; he also enjoys golfing and spending time with his wife and two kids. Follow John on twitter at twitter.com/john99jacobs.