Joe Clark is a software engineer with eight years of experience in the enterprise software industry. Joe is fluent in Java, .NET, Python, and JavaScript. He also spends a lot of time playing Minecraft.

As a developer support engineer for Australian software company Atlassian, Joe spends much of his time teaching other developers how to build plugins for JIRA and Confluence. He also speaks regularly at Atlassian Summit and AtlasCamp, and was thrilled to be selected as a speaker for MineCon 2011 in Paris, France.

Joe is the author of the Minecraft JIRA Plugin and contributes regularly to the world of open source software. You can find him on Twitter at @jaysee00.

Joe lives and works in San Francisco with his beautiful wife, Kate.

Thomas E. Enebo is co-lead of the JRuby project, author of the Ruby Bukkit wrapper Purugin, and a contributor to many other open source projects. He has been practicing Java since the heady days of the HotJava browser, and he has been happily using Ruby since 2001. Thomas has spoken at numerous Java and Ruby conferences, co-authored Using JRuby published by The Pragmatic Bookshelf, and was awarded the Rock Star award at JavaOne. When Thomas is not working he enjoys running, brewing beer, and drinking a decent IPA.