Scott Davis is the founder of ThirstyHead.com, a training company that specializes in Groovy and Grails training.

Scott published one of the first public websites implemented in Grails in 2006 and has been actively working with the technology ever since. Author of the book Groovy Recipes: Greasing the Wheels of Java and two ongoing IBM developerWorks article series (Mastering Grails and in 2009, Practically Groovy), Scott writes extensively about how Groovy and Grails are the future of Java development.

David Geary is the president of Clarity Training, Inc. (corewebdevelopment.com), where he teaches developers to implement web applications using JavaServer Faces (JSF) and the Google Web Toolkit (GWT).

A prominent author, speaker, and consultant, David holds a unique qualification as a Java expert: He wrote the best-selling books on both Java component frameworks: Swing and JavaServer Faces. David's Graphic Java Swing was the best-selling Swing book, and is one of the best-selling Java books of all-time, and Core JSF, which David wrote with Cay Horstman, is the best-selling book on JavaServer Faces.

David was one of a handful of experts on the JSF 1.0 Expert Group (EG) that actively defined the standard Java-based web application framework, and David is currently on the JSF 2 Expert Group, helping to vastly improve JSF in version 2.

Besides serving on the JSF and JSTL Expert Groups, David has contributed to open-source projects and he has written questions for two of Sun's Certification Exams: Web Developer Certification and JavaServer Faces Certification. He invented the Struts Template library which was the precursor to Tiles, a popular framework for composing web pages from JSP fragments, was the 2nd Struts committer and contributed to the Apache Shale project.

David has spoken at more than 100 NFJS symposiums since 2003, and he also speaks at other conferences such as TheServerSide Java Symposium, JavaOne, JavaPolis, and JAOO. David has taught at Java University for the past three years, and is a three-time JavaOne rock star.

Brian Goetz has been a professional software developer for 20 years. He is the author of over 75 articles on software development, and his book, Java Concurrency In Practice, was published in May 2006 by Addison-Wesley. He serves on the JCP Expert Groups for JSRs 166 (concurrency utilities), 107 (caching), and 305 (annotations for safety analysis). He is a frequent presenter at JavaOne, OOPSLA, JavaPolis, SDWest, and the No Fluff Just Stuff Software Symposium Tour. Brian is a Sr. Staff Engineer at Sun Microsystems.

Stuart Halloway is the CEO of Relevance, Inc. (www.thinkrelevance.com). With co-founder Justin Gehtland, Stuart helps companies adopt agile, as well as innovative technologies such as Clojure and Ruby on Rails. Stuart is the author of Programming Clojure, Rails for Java Developers, and Component Development for the Java Platform. Prior to founding Relevance, Stuart was the Chief Architect at Near-Time, and the Chief Technical Officer at DevelopMentor.

Mark Johnson is a Advisory Engineer at Pivotal where he focuses on helping people learn how to apply Fast and Big Data as well as PaaS solutions to address real world enterprise challenges. Mark has worked on a wide range of technology during his career. Most recently he has focused on Groovy, Grails, and Scala as technologies which enable high quality applications quickly. Mark is active in the software community as the President of the New England Java Users Group (NEJUG) and a regular presenter to user groups and various conferences. When not working, Mark can be found riding his mountain bike on local trails and playing with his family.

Ted Neward is an Architectural Consultant with Neudesic, LLC as well as the Principal with Neward & Associates. He speaks on the conference circuit discussing Java, .NET and XML service technologies, focusing on Java-.NET interoperability, programming languages, and virtual machine technologies. He has written several widely-recognized books in both the Java and .NET space, including the recently- released "Professional F#" and widely-acclaimed "Effective Enterprise Java". He lives in the Pacific Northwest.

Mark Richards is an Independent Consultant working in the field as an Enterprise, Integration, and Application Architect, where he is involved in the architecture, design, and implementation of SOA, EDA, messaging, and other architectures, primarily in the Java platform. Previously, Mark was an Executive IT Architect with IBM, where he worked as an SOA and enterprise architect in the financial services area. He has been involved in the software industry since 1984 and has many battle scars to show for it. Mark served as the President of the Boston Java User Group in 1997 and 1998, and the President of the New England Java Users Group from 1999 thru 2003. Mark is the author of the book Java Message Service (2nd edition) from O'Reilly. He is also the author of Java Transaction Design Strategies, contributing author of the book 97 Things Every Software Architect Should Know from O'Reilly, contributing author of NFJS Anthology Volume 1, and contributing author of NFJS Anthology Volume 2. Mark has many architect and developer certifications, including those from IBM, Sun, The Open Group, and Oracle. He is a regular conference speaker at the No Fluff Just Stuff Symposium Series and speaks at other conferences and user groups around the world. When he is not working Mark can usually be found hiking with his wife and two daughters in the White Mountains or along the Appalachian Trail.

Nathaniel T. Schutta is a senior software engineer focussed on making usable applications. A proponent of polyglot programming, Nate has written two books on Ajax and speaks regularly at various worldwide conferences, No Fluff Just Stuff symposia, universities, and Java user groups. In addition to his day job, Nate is an adjunct professor at the University of Minnesota where he teaches students to embrace dynamic languages. In an effort to rid the world of bad presentations, Nate coauthored the book Presentation Patterns with Neal Ford and Matthew McCullough.

Dr. Venkat Subramaniam, founder of Agile Developer, Inc., has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia. Venkat helps his clients effectively apply and succeed with agile practices on their software projects, and speaks frequently at international conferences and user groups. Venkat is also an adjunct faculty and teaches CS courses remotely at the University of Houston. He is author of ".NET Gotchas," coauthor of 2007 Jolt Productivity Award winning "Practices of an Agile Developer," author of "Programming Groovy: Dynamic Productivity for the Java Developer" and "Programming Scala: Tackle Multi-Core Complexity on the Java Virtual Machine" (Pragmatic Bookshelf).

Craig Walls is a senior engineer with SpringSource as the Spring Social project lead and is the author of Spring in Action and XDoclet in Action (both published by Manning) and Modular Java (published by Pragmatic Bookshelf). He's a zealous promoter of the Spring Framework, speaking frequently at local user groups and conferences and writing about Spring and OSGi on his blog. When he's not slinging code, Craig spends as much time as he can with his wife, two daughters, 2 birds and 3 dogs.