Learn Directly from Industry Experts and the Pragmatic Authors
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Dave Thomas

Dave Thomas has been writing software since the mid '70s, and hopes one day to get it right. In the meantime, he's the co-author of The Pragmatic Programmer, Programming Ruby, and Agile Web Development with Rails. He co-teaches Pragmatic Studio: Ruby on Rails with Mike Clark. Along with Andy Hunt, they run The Pragmatic Programmers, a consultancy that helps folks develop better software.

Mike Clark

Mike Clark is an independent consultant, author, trainer, and programmer. He's the co-author of Agile Web Development with Rails, author of Pragmatic Project Automation, and co-teaches Pragmatic Studio: Ruby on Rails with Dave Thomas. He helped build one of the first commercial Rails applications and continues working on other Rails projects through his company, Clarkware Consulting.

Chad Fowler

Chad Fowler has been a software developer and manager for some of the world's largest corporations. He recently lived and worked in India, setting up and leading an offshore software development center. He is cofounder of Ruby Central, Inc., a non-profit corporation responsible for the annual International Ruby and Rails Conferences, and is a leading contributor in the Ruby community. Chad is a contributor and editor for numerous books and is author of the recently released, Rails Recipes.

Ezra Zygmuntowicz

Ezra Zygmuntowicz is a co-founder of EngineYard.com, a scalable Rails hosting service. He is the author of the upcoming Rails Deployment book for the Pragmatic Programmers and has contributed many open source Ruby and Rails related projects such as BackgrounDrb, ez-where and Merb. He is a speaker at both the 2006 & 2007 RailsConf and the 2007 SDForum Ruby conference. He has been working with Ruby for almost 4 years now and picked up Rails in the summer of 2004. In his spare time he likes to hack Ruby and Erlang and tinker with his vintage 54 VW beetle.

Justin Gehtland

Justin Gehtland is a cofounder of Relevance, LLC, a training and consulting company located in the Research Triangle, North Carolina. In addition to Relevance's ongoing client work, he is a coauthor of the upcoming book Rails for Java Programmers and co-creator of the open source Streamlined framework. Justin has been an application developer since 1990, a web application developer since 1995, and a project manager on numerous successful projects. He is the co-author of Pragmatic Ajax (The Pragmatic Bookshelf, 2005), Spring: A Developer's Notebook (O'Reilly, 2005), and Better, Faster, Lighter Java (O'Reilly 2004).

Stuart Halloway

Stuart Halloway is a cofounder of Relevance, LLC, a training and consulting company located in the Research Triangle, North Carolina. In addition to Relevance's ongoing client work, he is a coauthor of the upcoming book Rails for Java Programmers and co-creator of the open source Streamlined framework. Stuart was the CTO at DevelopMentor before founding Relevance. He has also worked as a lead engineer and project manager, shipping successful projects for Prentice Hall, National Geographic, and Duke University's Humanities Computing Facility. Stuart is the author of Component Development for the Java Platform.

Marcel Molina Jr.

Marcel Molina Jr. is a member of the Rails core team. He went from being a literature major to a programmer. In his transition from natural language to machine language, he found Ruby an elegant balance of dynamic, pragmatic, and "humane". And then came along Rails... He lives in Austin's lush and twisty Travis Heights in the shadows of ancient, gnarled live oaks.

Jim Weirich

Jim Weirich is a developer for EdgeCase, a Rails software firm located in Columbus, Ohio. Jim has over twenty-five years of experience in software development. He has worked with real-time data systems for testing jet engines, networking software for information systems, and image processing software for the financial industry. Jim is active in the Ruby community and has contributed to several Ruby projects, including the Rake build system and the RubyGems package software.

Jenifer Hanen

Jenifer Hanen is an interface design specialist with over a decade of experience as an independent web designer, educator, and mobile consultant. She believes that a good web site should say it all in color, clean typography, photos and a minimalist aesthetic. She completed her Masters degree in Computer Science in Multimedia Systems in Dublin, Ireland. Jenifer has been bitten by the mobile blogging / camera phone bug and last summer's mobile documentary project, Around Ireland, was a finalist in the 2007 SXSW Interactive Web Awards. She is currently doing web development with Easy Designs, and this spring she worked on projects for Bertucci's restaurants, New England Dodge, and Autobytel's MyRide.com.

David Chelimsky

David Chelimsky is the lead developer of RSpec and also leads software development at Articulated Man, Inc, in Chicago, IL. Prior to joining Articulated Man, David developed and taught courses in OO Design, Test Driven Development and Refactoring with Object Mentor, Inc. In addition to exploring Ruby, Rails and Behaviour Driven Development, David likes to play guitar and is learning to speak português.

Mike Mangino

Mike Mangino is the founder of Elevated Rails, a Chicago-based Ruby on Rails consultancy.