John Arthorne has been a committer on the Eclipse project since its inception, and has worked on Eclipse's underlying technology since 1998. Before joining IBM Ottawa Lab in Ottawa, Canada, he worked for IBM subsidiary Object Technology International, developing Eclipse's precursor, VisualAge Micro Edition Java IDE.
Chris Laffra works with the J9 virtual machine team at IBM Ottawa Lab. He focuses on improving Eclipse's overall performance, and his hobby is visualization of Eclipse's execution to improve its transparency. Chris previously worked for IBM T.J. Watson Research Center and OTI in Amsterdam.