Tony Johnson obtained his PhD from Oxford University while working on the EMC experiment at CERN. Since then he has worked for MIT, Boston University and is currently a staff physicist at SLAC. He spent many years as software architect for the SLD experiment, and has worked on many data analysis, internet and distributed computing projects. He is currently data handling coordinator for the GLAST experiment, working on software for physics studies at future linear colliders, and is chief architect of the JAS analysis toolkit.