I currently work on the Amazon EC2 Kernel and Operating Systems team. Most work I do involves the Linux kernel and Xen hypervisor, focusing on low-level performance testing and optimization. This includes block device I/O performance, clock source accuracy/precision/performance, device passthrough with VT-d, network throughput/latency, hypervisor scheduling, scalability with high-density hosts, and so on.

I've also developed a Python tool which enables us to run qualifications, benchmarks, sanity tests, etc. on massive numbers of hosts in parallel, allowing for very fast iteration on new product designs or platform refreshes. This tool has also served us well during emergency scenarios where a new fix needs to be deployed on a series of hosts and qualified in a very short period of time.

I worked in the Amazon EC2 Platforms and Performance team, where I worked primarily on performance tuning and design for cluster compute instance types. I was the lead software engineer in charge of the hi1.4xlarge instance type, and did significant kernel changes to ensure hi1.4xlarge performed well.

• Developed the Linux port of Defcon, using C++, SDL, SDL_image, SDL_mixer and OpenGL.
• Assisted in the development of the Windows Vista version of Darwinia, which was released on MSN Games shortly after Windows Vista's release.

• Developed the Linux and Mac OS X ports of Hacker Evolution: Untold. Was tasked with eliminating the use of DirectX and Windows-specific APIs, and refactored the code to use much more cross-platform APIs including SDL, SDL_image, SDL_mixer, and OpenGL. The project is written in pure C++.

• Worked on the Unladen Swallow interpreter for Python, to reduce memory usage, eliminate memory leaks, and generally improve performance.

• CrissCross, a cross-platform C++ development library with several data structures and algorithms. Builds and runs on Windows, Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, and even the Nintendo DS. Currently used mainly for cross-platform game development as a supplement to the C++ STL, and game development libraries like SDL.
• ARC++, a C++ rewrite of OpenARC, using SDL, SDL_mixer, SDL_image, OpenGL.
• OpenARC, a clone of Hoopy Entertainment's Attack, Retrieve Capture. Originally written in Visual Basic 6, using a DirectDraw/Direct3D hybrid, and designed for Windows 95 and above (works even on Windows Vista and 7).
• GenPrime, a prime number discovery algorithm, primarily used for code generation comparisons (a programming language shootout).
• CryptoPad, a WordPad-like cryptography program written in Visual Basic 6. Open source.

• Initially worked to make the Mac OS X build of Dungeon Crawl Stone Soup usable, and now work on maintaining the contributing library overlays as well as the Mac OS X builds.
• Also developed some nice GNU Makefiles which build the project successfully on Mac, Linux, Windows, FreeBSD, and several other operating systems without needing to use Autoconf/Automake.

• Participated in university-level computer science workshops.
• Participated in an honors English course.

• Competed in Visual Basic Programming, C++ Programming, and Network Design.
• Placed 1^st in Visual Basic, C++, and Network Design at the Washington State North Central Region competition.
• Placed 1^st in Network Design, 2^nd in Visual Basic, and 3^rd in C++ at the Washington State competition.
• Placed 5^th in Network Design at the national competition. (Only could enter one event.)

• Received several first place awards for Lincoln-Douglas debate in competitions at district competitions in Washington state.
• Received an award from the coach for being the "Most Improved".
• Received a second place award for a dual interpretation speech at a district competition.
• State qualifier for Lincoln-Douglas debate.

• Achieved rank of Eagle Scout in 2001.
• Was active in cub scouts, achieved all ranks (Bobcat, Wolf, Bear, Webelos).
• Previously active in both Boy Scout Troop 69 and Venture Crew 69.
• In the Order of the Arrow,
  • Served as conclave vice chief in charge of publications on 3 separate occasions.
  • Served as conclave vice chief in charge of shows.
  • Achieved the highest honor in the Order of the Arrow, Vigil Honor.
  • NOAC Live! 2006 and 2009 technical teams, working in XHTML/CSS development (see http://www.oa-bsa.org/events/n2006/live/ and http://www.oa-bsa.org/events/n2009/live/).