Founded software consulting firm in Hollis, NH.Top Linux kernel contributor, named to Linux Kernel Summit list 2015 (https://goo.gl/m62WpI) & 2014 (http://goo.gl/FsVUFX). Almost 700 mainline patches.Primary contributor and reviewer of tty/serial subsystems. Added lockless i/o for 15x throughputimprovement, standalone rwsem (ldsem), 100's of bug fixes. Notable contributions in mutex/rwsem lock stealing, memory barriers, ARM I/O primitives, devicetree, Bluetooth, consoles, pipes, FireWire, and DRM.Extensive experience in ARM platform integration and board bring-up including h/w debugging, and supplying custom toolchains, bootloaders, and kernels.

Architected our C++ real-time 3D visualization platform for financial services.Invented the IP and wrote US patent #7250951 (https://www.google.com/patents/US7250951).Designed and co-wrote the visualization interface, OpenGL engine and key Windows UI components. Co-led the funding search, resulting in $200K development partnership with Thomson Reuters. Double-duty as entire IT department.

Responsible for over 100 software, hardware and ASIC engineers for publicly- traded, $100M annual revenue PC graphics hardware company.Spearheaded the (ultimately unsuccessful) turnaround effort; key actor in establishing strategic partnership with SGI

Initially hired to optimize the Windows GDI drivers; re-tasked to debug broken1st gen 3D ASIC; developed multiple software workarounds to conform to specon Direct3D and OpenGL.Led the 2nd generation 3D ASIC design, with emphasis on primitiverasterization, texture cache, and fragment pipeline.

Hired as 2nd engineer to work on SoftICE/W, the premier Windows debugger.In one month, completely re-wrote display switching for nearly every existingPC graphics device (including SVGA, 8514, ATI, S3, Matrox).Re-tasked to push stalled release of BoundsChecker v3.0, which became the most successful product in company history. Re-designed C++ run-time symbol engine for 2x speed improvement. Re-wrote the popup UI for the chiseled Windows/95 look. Introduced SCM (on Microsoft Visual SourceSafe)Within a year, Nu-Mega was sold privately to Compuware for $160M.

Designed and wrote x86 protected-mode C2 security hypervisor for DOS andWindows 3.1/95.

Wrote Energizer Bunny Screensaver for Windows, solo. Sold 1M copies in thefirst month. Led to one of the first software patent reversals(http://www.wired.com/1994/08/flux-6/).

Re-designed and re-wrote copy protection software based on patentedtechnologySub-contracted to Microsoft to design and write copy protection for Windows 3.1, Middle East, on campus.Wrote groupware license compliance client/server on OS/2

Founded and operated small LAN technology service and support company