Charles Nutter, Sun
Charles Nutter has been a Java developer since 1996, recently working as the senior Java architect at Ventera Corp and in September moved to Sun to work full-time on JRuby! He led the open-source LiteStep project in the late 90s and came to Ruby in the fall of 2004.
Since then he has been a member of the JRuby team, helping to make it a true alternative Ruby platform. Charles presented JRuby at RubyConf 2005 and co-presented at JavaOne 2006 with Thomas Enebo. He hopes to co-write a JRuby book this fall with Thomas to follow up a planned JRuby 1.0 release.