These are some of the things I've written or worked on at IBM:

• TC API for Linux
• IBM Web Sphere Edge Server
• Visual Age C++ Version 4
• XProfiler (aka xgprof)
• Xcache
• Program Visualizer
• Transaction Processing Facility (TPF)

So my past work at IBM touched on: operating systems development, high-performance transaction processing, compiler development, data flow analysis/optimizations/program slicing, debugger development, hardware simulation/animation/visualization, performance profiler development, program understanding, GUI development, programing environment development, blah, blah.

Patents:

• "Setting Instance Breakpoints In Object Oriented Computer Programs", US Patent , Canadian Patent
• "Debugging Multiple Related Processes Simultaneously", Canadian Patent

Papers:

• "A Prototype System for Static and Dynamic Program Understanding", D. Olshefski and A. Cole, ACM/IEEE Working Conference on Reverse Engineering, Baltimore, MD, May 1993.
• "Position Paper: Tools Facilitating Software Comprehension", D. Olshefski, Program Comprehension Workshop Notes,ACM/IEEE Conference on Software Maintenance, Orlando FL, November 1992.
• "Using Static Single Assignment form and the Control Dependence Graph to Perform Program Slicing for Program Understanding", D. Olshefski and A. Cole, IBM Programming Languages ITL, May 1992, Toronto, Canada.
• "Current and Future Research with a Program Understanding Tool", D. Olshefski and A. Cole, IBM Software Engineering ITL, March 1992, Thornwood, NY.
• "An Investigation and Evaluation of Program Slicing", D. Olshefski, Hartford Graduate Center Conference Proceedings, May 1989, Hartford, CT.