 He took three years off of his CERN career to teach undergraduate computer science at Massey University in New Zealand.When Carpenter left CERN, he joined IBM, where he was an IBM Distinguished Engineer working on Internet Standards and Technology between 1997 and 2007.From 1999 to 2001 he was at iCAIR, international Center for Advanced Internet Research, sponsored by IBM at Northwestern University in Evanston, Illinois.