Core member of the Grails development team, Jeff Scott Brown, is a Senior Software Engineer with SpringSource. Jeff has been involved in designing and building object oriented systems for over 15 years. Jeff's areas of expertise include web development with Groovy & Grails, Java and agile development.

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.

Neal is Director, Software Architect, and Meme Wrangler at ThoughtWorks, a global IT consultancy with an exclusive focus on end-to-end software development and delivery.

Before joining ThoughtWorks, Neal was the Chief Technology Officer at The DSW Group, Ltd., a nationally recognized training and development firm. Neal has a degree in Computer Science from Georgia State University specializing in languages and compilers and a minor in mathematics specializing in statistical analysis.

He is also the designer and developer of applications, instructional materials, magazine articles, video presentations, and author of 6 books, including the most recent The Productive Programmer. His language proficiencies include Java, C#/.NET, Ruby, Groovy, functional languages, Scheme, Object Pascal, C++, and C. His primary consulting focus is the design and construction of large-scale enterprise applications. Neal has taught on-site classes nationally and internationally to all phases of the military and to many Fortune 500 companies. He is also an internationally acclaimed speaker, having spoken at over 100 developer conferences worldwide, delivering more than 600 talks. If you have an insatiable curiosity about Neal, visit his web site at http://www.nealford.com. He welcomes feedback and can be reached at nford@thoughtworks.com.

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.

Agile/Kanban coach, REST architect, software craftsman

John D. Heintz is a husband, father, developer, Agilist, entrepreneur. After studying electrons in college, John's intuition led him to pursue software, and he's been a digital craftsmen since. Always seeking solutions with higher leverage and deeper simplicity has led John to important methods and tools. John's approach to building systems and teams started with leading his first Scrum team in 1999, included XP and TDD, and now Agile and Lean methods are part of his daily work and consulting. John has built single-source hyperdocument SGML publishing systems, a version control CORBA/Python CMS, an AspectJ dependency acquisition framework, added test automation to many Java and .NET systems, coached a 100-person Agile/Lean game studio, and built RESTful Web integration systems. John has launched his own company, Gist Labs, to further his focus on essential innovation.

Roman is a Principal Software Security Consultant at Foundstone, a small division of McAfee that provides security assessment, training, and software design services to corporate and government organizations around the world. After spending most of his life building software, now he figures out ways to break it through penetration testing, threat modeling, and code review. On the proactive side, he leads software design sessions, teaches Java security courses, and participates in the Hacme Books open-source project. In his ever-dwindling spare time Roman enjoys mountaineering, scuba diving, and other outdoor pursuits.

Richard Monson-Haefel is the author of 97 Things Every Software Architect Should know (O'Reilly), Enterprise JavaBeans (O'Reilly), Java Message Service (O'Reilly), J2EE Web Services (Addison-Wesley), and one of the world's leading experts and book authors on enterprise computing. He was the lead architect of OpenEJB, an open source EJB container used in Apache Geronimo, a member of the JCP Executive Committee, member of JCP EJB expert groups, and an industry analyst for Burton Group researching enterprise computing, open source, and Rich Internet Application (RIA) development. Today, Richard is an independent software developer. You can learn more about Richard at his web site http://www.monson-haefel.com

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.

Brian Sam-Bodden is an author, instructor, speaker and hacker that has spent over fifteen years crafting software systems. He holds dual bachelor degrees from Ohio Wesleyan University in computer science and physics and heads Integrallis http://www.integrallis.com. He is a frequent speaker at user groups and conferences nationally and abroad. Brian is the author of "Beginning POJOs: Spring, Hibernate, JBoss and Tapestry", co-author of the "Enterprise Java Development on a Budget: Leveraging Java Open Source Technologies" and a contributor to O'reilly's "97 Things Every Project Manager Should Know".

Brian Sletten is a liberal arts-educated software engineer with a focus on forward-leaning technologies. His experience has spanned many industries including retail, banking, online games, defense, finance, hospitality and health care. He has a B.S. in Computer Science from the College of William and Mary and lives in Auburn, CA. He focuses on web architecture, resource-oriented computing, social networking, the Semantic Web, data science, 3D graphics, visualization, scalable systems, security consulting and other technologies of the late 20th and early 21st Centuries. He is also a rabid reader, devoted foodie and has excellent taste in music. If pressed, he might tell you about his International Pop Recording career.

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.