Initiated and led the development of a multi-tasking operating system that included bootstrap code, device drivers, interrupt handlers and hardware diagnostics. Led the design and development of a hierarchical B-tree file system that automatically recovered from failures. Led the development of a complete software development environment that included a compiler, linker and debug aides. Designed and developed a SCSI subsystem that included controller, disk and tape drivers and diagnostics. Modeled, designed and built a web-based system that tracks CALWORKs participants as they work their way through the TANF-CDC program. The system was funded by the California Department of Education and used by over 50 California Community Colleges for over 5 years. The system was never down due to a software problem.
Modeled, designed and built a web-based system that tracks over $2M of reimbursement requests per year. The system was funded by California Department of Education and it's being used by over 70 California Community Colleges. Built, configured and hardened a Windows server that hosts the web site. The system has never been down due to a software or hardware problem. Modeled, designed and built a web-based system for the Dependency Advocacy Center in San Jose. The system helps mentors track the progress of parents as they work their way through the Mentor Parent program.

Developed iPhone/iPad apps (California Earthquake Faults/U.S. Earthquake Faults) that show the largest and most active faults in the United States/California and distances to your current location or a location you specify. Also developed an app (U.S. Nuclear Reactors) that shows research and production nuclear reactors in the United States. Developed system software that managed the file system portion of the SCOPE operating system for UC Berkeley and Control Data. Analyzed and solve complex problems due to interaction of up to 22 processors running simulatenously. Developed and taught classes on software engineering, operating systems, systems programming, software testing and high level languages. Received rave reviews.

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