Rod is the founder of the Spring Framework, which began from code published with Expert One-on-One J2EE Design and Development. Along with Juergen Hoeller, he continues to lead the development of Spring. He regularly speaks at conferences in the US, Europe and Asia, including the ServerSide Symposium (2003, 2004 and 2005), JavaPolis (Europe's leading Java conference), and JAOO (2004). Engagements in 2005 include two presentations at JavaOne 2005 and a keynote at the JavaWorld 2005 conference (Tokyo, June). Rod serves in the JCP on the Expert Groups defining the Servlet 2.4 and JDO 2.0 specifications.
Rod continues to be actively involved in client projects at Interface21, as well as Spring development, writing and evangelism.