Sep 2011 – Jul 2020 · 8 yrs 10 mos

Jan 2009 – Jan 2014 · 5 yrs

May 2008 – Present · 18 yrs

• Author of the novel Overdrive as well as Eloquent Ruby, Getting Clojure and Design Patterns in Ruby. Occasional speaker at conferences.

Apr 2004 – Jan 2009 · 4 yrs 9 mos

Apr 2003 – Sep 2011 · 8 yrs 5 mos

Jan 2001 – Jan 2004 · 3 yrs

Jul 1998 – May 2000 · 1 yr 10 mos

• At ICL I was a Senior Engineer in charge of Java products for the IMS mapping product as well as the network manager. I was responsible for starting up the VPJ product development group. VPJ is a Java/Swing based mapping and imaging client for the IMS GIS system. I also built the complete development group network infrastructure including CISCO routers, Linux and Windows NT mail servers, and Sun workstations. I was responsible for supporting a worldwide development team with open source tools including CVS, ssh, gcc and gmake.
• I also ported an existing C/C++ based mapping system from Solaris to Redhat Linux.

Jan 1989 – Jan 1998 · 9 yrs

Apr 1986 – Jun 1989 · 3 yrs 2 mos

Jan 1983 – Jan 1986 · 3 yrs