John is an experienced consultant and trainer specialising in Enterprise Java, Web Development, and Open Source technologies, based in Sydney, Australia. Well known in the Java community for his many published articles, and as author of Java Power Tools, John helps organisations around the world to optimize their Java development processes and infrastructures and provides training and mentoring in open source technologies, SDLC tools, and agile development processes. John is CEO of Wakaleo Consulting, a company that provides consulting, training and mentoring services in Enterprise Java and Agile Development. John is the author of 'Java Power Tools' and of the recently published 'Jenkins: The Definitive Guide'