As Principal Software Engineer at Red Hat, Dan serves as the JBoss Community liaison, leads the JBoss Testing Initiative and is a member of the Arquillian, ShrinkWrap and JBoss Forge projects. He authored Seam in Action (Manning), served as a representative for Red Hat on the JSR-314 Expert Group (JSF 2.0), writes for IBM developerWorks and NFJS magazine and is an internationally recognized speaker. He's appeared at major industry conferences including JavaOne, Devoxx, NFJS, JAX and Jazoon and has received recognition as a JavaOne Rock Star, a JBossWorld Top Presenter and a JAX Hall of Fame speaker.

To colleagues, Dan's known for his hard work and passion for Open Source technologies. His technical expertise includes Java frameworks (Seam, CDI, Weld, JSF, EJB 3, JPA, Hibernate, Spring), testing frameworks (Arquillian, JUnit, TestNG, Selenium), build tools (Maven 2, Gradle, Ant) and web development (Ajax, JavaScript, CSS) and more.

You can keep up with Dan's discoveries by reading his blogs at http://mojavelinux.com and http://community.jboss.org/people/dan.j.allen/blog or tracking what he's currently up to by following him on Twitter at http://twitter.com/mojavelinux.

Aaron Bedra is a member of Clojure/core and a developer at Relevance, Inc. where he spends his time as a tech lead, speaker and author. He is a frequent contributor to the Clojure language and its supporting libraries as well as an active member of the Clojure community. Aaron has led the development of several commercial Clojure projects and is the co-author with Stuart Halloway of Programming Clojure, 2nd Edition.

Tim is a full-stack generalist and passionate teacher who loves working with people as much as he loves to code. He believes the best developer is one who is well-informed of specifics and can also make deep connections between software development and the broader world. He has recently been exploring non-relational data stores, why professionalized product management is a global suboptimization, and of course everything related to Git. He does not really believe that it is possible to teach, but rather believes that it is his responsibility to create an environment in which people can learn.

He is also a poet, having composed and produced companion videos for Oh, The Methods You'll Compose and The Maven, with another project currently in the works. If you've been in his Git classes, you've seen some famous poems make their way into the world's best version control system.

Tim is a speaker internationally and on the No Fluff Just Stuff tour in the United States, and is co-president of the Denver Open Source User Group, author of the Gradle Liquibase Plugin, the maintainer of the Ratpack web framework, co-presenter of the best-selling O'Reilly Git Master Class, co-author of Building and Testing with Gradle, a member of the O'Reilly Expert Network, and a member of the GigOM Pro Analyst Network. He occasionally blogs at timberglund.com.

He lives in Littleton, CO, USA with the wife of his youth and their three children.

Rohit Bhardwaj is a Principal Software Engineer at Kronos Incorporated and has fifteen years of extensive experience in architecture, design and agile development. Rohit is an expert in application development in Service Oriented Architecture (SOA), REST, Cloud Computing, RIA, Android, Web Services and SOAPUI. Rohit is Sun Certified Java developer for Java 1.5 Platform. Rohit did his Masters in Computer Science from Boston University and Harvard University. He can be reached at rbhardwaj@kronos.com or using Twitter at rbhardwaj1

David Bock is a Principal Consultant at CodeSherpas, a company he founded in 2007. Mr. Bock is also the President of the Northern Virginia Java Users Group, the Editor of O'Reilly's OnJava.com website, and a frequent speaker on technology in venues such as the No Fluff Just Stuff Software Symposiums.

In January 2006, Mr. Bock was honored by being awarded the title of Java Champion by a panel of esteemed leaders in the Java Community in a program sponsored by Sun. There are approximately 100 active Java Champions worldwide.

David has also served on several JCP panels, including the Specification of the Java 6 Platform and the upcoming Java Module System.

In addition to his public speaking and training activities, Mr. Bock actively consults as a software engineer, project manager, and team mentor for commercial and government clients.

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.

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.

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.

David teaches and coaches the adoption and improvement of agility as a delivery tool. His work includes helping companies of all sizes all over the world. Sometimes he is pairing with developers and testers, while other times he is helping to invent, evolve and plan the delivery of all types of products and projects. David also spends a great deal of time helping leaders at all levels find ways to pragmatically use agility to foster innovation.

Prior to working as a full time coach, David spent years building software in a variety of domains: digital audio, digital biometrics, medical, financial, retail, and education to name a few. David now leads DevJam, a company composed of agile collaborators. As mentors and practitioners, DevJam focuses on agility as a tool to help people and companies improve their software production skills. DevJam provides seasoned leaders that strive to pragmatically match technology, people, and processes to create better and cooler products in competitive cycles.

Along with teaching and coaching, David participates in conferences around the world. He is the recipient of the Agile Alliance, 2009 Gordon Pask Award. David continuously contributes to books and various publications.

For coaching information, presentations, and more, visit www.devjam.com

Matthew McCullough is an energetic 15 year veteran of enterprise software development, open source education, and co-founder of Ambient Ideas, LLC, a Denver consultancy. Matthew currently is VP of Training at GitHub.com, author of the Git Master Class series for O'Reilly, speaker at over 30 national and international conferences, author of three of the top 10 DZone RefCards, and President of the Denver Open Source Users Group. His current topics of research center around project automation: build tools (Gradle), distributed version control (Git, GitHub), Continuous Integration (Jenkins, Travis) and Quality Metrics (Sonar). Matthew resides in Denver, Colorado with his beautiful wife and two young daughters, who are active in nearly every outdoor activity Colorado has to offer.

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.

Michael strives to raise the bar and ease the pain for developers across the country. He shares his passion and energy for improvement with everyone he meets, sometimes even with their permission. Michael has spent the better part of 20 years learning what it means to be a professional programmer who cares about art, quality, and craft. He's always ready to spend time with other developers who are fully engaged and devoted to their work--the "wide awake" developers. On the flip side, he cannot abide apathy or wasted potential.

Michael has been a professional programmer and architect for nearly 20 years. During that time, he has delivered running systems to the U. S. Government, the military, banking, finance, agriculture, and retail industries. More often than not, Michael has lived with the systems he built. This experience with the real world of operations changed his views about software architecture and development forever.

He worked through the birth and infancy of a Tier 1 retail site and has often served as "roving troubleshooter" for other online businesses. These experiences give him a unique perspective on building software for high performance and high reliability in the face of an actively hostile environment.

Most recently, Michael wrote "Release It! Design and Deploy Production-Ready Software", a book that realizes many of his thoughts about building software that does more than just pass QA, it survives the real world. Michael previously wrote numerous articles and editorials, spoke at Comdex, and co-authored one of the early Java books.

Ken has been a practitioner and instructor of RUP since the late 1990s, and an extreme programmer and coach since the middle 2000s. Ken has worked with Fortune 500 companies to small startups in the roles of developer, designer, application architect and enterprise architect. Ken's current focus is on enterprise system automation and continuous delivery systems.

Ken is an international speaker on the subject of software engineering speaking at conferences such as JavaOne, JavaZone, Jax-India, and The Strange Loop. He is a regular speaker with NFJS where he is best known for his architecture and security hacking talks. In 2009, Ken was honored by being awarded the JavaOne Rockstar Award at JavaOne in SF, California and the JavaZone Rockstar Award at JavaZone in Oslo, Norway as the top ranked speaker.

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.

Matt Stine is a Community Engineer with Cloud Foundry (http://cloudfoundry.com) by Pivotal (http://goPivotal.com). He is a twelve year veteran of the enterprise software and web development industries, with experience spanning the healthcare, biomedical research, e-commerce, retail store and insurance domains.

Matt is obsessed with the idea that enterprise IT “doesn’t have to suck,” and spends much of his time thinking about lean/agile software development methodologies, DevOps, architectural principles/patterns/practices, and programming paradigms in an attempt to find the perfect storm of techniques that will allow corporate IT departments to not only function like startup companies, but also create software that delights users while maintaining a high degree of conceptual integrity.

Matt has spoken at conferences ranging from JavaOne to CodeMash and serves as Technical Editor of NFJS the Magazine (https://www.nofluffjuststuff.com/home/magazine_subscribe). Matt is also the founder of the Memphis/Mid-South Java User Group.

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.