I am a software developer living in Ottawa, Canada. I have worked on designing and implementing virtual machines for over 20 years. most recently on IBM Java. I do a lot of photography as well as fishing as often as I can.
Masters in Computer Science • January 1988
My thesis was on multiprocessor garbage collection in Smalltalk systems. This was on stock multiprocessor hardware which had private local memory, no cache coherency which required a partitioned heap and used message passing to control execution. A garbage collection system with local and remote pointers was build on top of a message passing realtime OS, which allowed multiple Smalltalk systems to communicate and manage memory in a coordinated manner.
Bachelor of Science, Majored in Biology, with minor in Computer Science • May 1984
Distinguished Engineer, Java CTO • January 2003 - Present
As Java CTO and IBM distinguished engineer, I am responsible for the Java virtual machine technology found in WebSphere and IBM products.
Software Developer and eventually CTO• 1988 - 2003
My role as virtual machine lead at OTI, I developer virtual machines for embedded systems, including real-time systems. Initially focused on Smalltalk systems, this evolved to include Java in 1996, and shipped in products from IBM, such as VisualAge for Smalltalk and Java, and WebSphere. I also worked on tools and open source ecosystems such as Eclipse.
My technology blog talks about software development in general, with Java, Scripting, Runtimes, Tools as a focus.Technology
I take photos all the time. I post some, pretty much daily.Art Details
Fish to live, live to fish.Leisure