Summary:

Experienced in applications, drivers, design, implementation and testing; and system administration. Strengths include strong analytical capabilities coupled with the ability to rapidly learn, retain, and apply new technology effectively.

Experience:

Open Source Involvement, (2013 to present)

• Android (2016 to present)

  • Examined an Android device with minimal Open Source support and figured out hardware differences to allow full support

  • First person to successfully build a fully working, fully Open Source kernel for the H990 variant of the LG V20

  • Working with Android community attempting to bring LineageOS support to LG H990

• DebWRT (2012 to present, Debian variant targeting wireless routers)

  • Major rewriting of many core pieces of DebWRT

  • Enhanced build system based on patching against OpenWRT to account for multiple revisions of OpenWRT; thus allowing for patches to be updated against newer OpenWRT releases, while continuing to keep older builds functioning

  • Successfully adapted OpenWRT kernel patches for Linux v3.2 and v3.16 to apply to Debian kernel source, allowing taking advantage of Debian's security updates while running on Linux routers

  • Cleanup of numerous DebWRT packages

  • Uncovered and reported kernel security hole in OpenWRT's kernel infrastructure for configuring switch chips

• Debian (Major Linux Distribution)

  • Continuing history of finding many novel bugs in the Debian Linux distribution not found or reported by others

  • Specialty knowledge solved a very difficult bug being encountered by many others that had been thought to be completely unsolvable

• Maniana (2013 to 2014, Android To-Do app)

  • Implemented Ant-based builds for better consistency with any new developers who joined the project in the future

  • Added support for To-Dos with due dates and To-Dos that repeat

  • Added support for backups to SD card, instead of online-only backups

Member of Technical Staff, Hooked Wireless, Los Altos Hills, California (2008 to 2012)

• Testing

  • Designed and implemented system to spread testing cycle among multiple machines concurrently, thereby reducing test cycle time and greatly increasing testing frequency

  • Identified missed test cases and implemented corrections to include them in reports

  • Enhanced system by adding the ability to do image comparison

  • Mitigated potential hangs caused by crashes, and other conditions

  • Designed and implemented recording and playback of user input sequences in order to provide better test coverage

  • Generalized test system to enable testing of multiple projects

• Build

  • Designed and implemented system to assign spread build tasks among multiple computers capable of handling some builds, and dealing with builds restricted to other computers.

  • Updated an existing build system previously verified with GNU Make 3.80 to work with 3.81.

  • Diagnosed subtle Makefile problems that caused parallel-Make builds to fail.

• Debugging

  • Identified and addressed potential security bugs.

  • Analyzed long-standing API bugs in order to fix them without breaking historical code.

  • Tracked down performance bugs, producing major gains.

Software Engineer, Originate Labs, San Mateo, California (2007)

• Wrote embedded software for use on cellular devices

• Wrote driver to access specialized features of a wireless modem

• Enhanced existing test suite

  • Rewrote a large block of the test suite, increasing flexibility

  • Merged two distinct overlapping test suites into one

  • Added tests for previously untested functionality

• Updated code designed for earlier software releases to work with current versions

• Fixed many out of date pieces of code to fix consistency with current standards

• Worked with network protocol implementations to ensure they worked correctly

Software Developer, Tech Soft America, Berkeley, California (2006)

• Wrote test cases as part of software development process

  • During validation discovered novel bugs in previously tested functionality

  • Wrote test cases for addition to permanent test library

  • Wrote test cases which reproduced customer bugs

• Answered support requests from customers spread worldwide

• Isolated bugs requiring very specific software configuration

• Identified limits on interoperability

• Improved customer visible documentation

• Managed operation of internal network

• Member of team which relocated office

Additional Relevant Experience:

Student/Continuing Studies

• Full-time student: Earned Bachelor of Sciences/Computer Sciences

• Consultant and tutor for members of the Portland State University Computer Action Team and the Portland Linux Users Group

• Continuing independent HCI/graphics API research and design, including coding for GTK, Xlib, OpenGL, Java, and Glib

• Identified and fixed bug in oidentd's configuration file parser

Lead Unix Administrator, College of Engineering, Portland State University, Portland, Oregon

• Managed a network of 120 SPARC, UltraSPARC-based Sun workstations/servers networked using Cisco routers and switches. Responsibilities also included problem resolution and tracking.

• Updated and optimized legacy and existing administration and Solaris JumpStart scripts to simplify network and workstation maintenance, and to ensure Solaris 8 compatibility with the network and older workstations.

• Team leader for task group that upgraded 32-bit-only firmware, kernels, and software (notably compiler suite) to support 64-bit mode.

• Streamlined and optimized subnet boot/root servers, thereby eliminating three setup tasks, and reduced the number of centralized tasks needed to set up new systems and reload existing systems.

• Found and fixed security vulnerabilities in systems and system configurations.

• Updated, built, installed, and maintained programs and libraries including:

  • SSH through version 1.2.31+patches, and OpenSSH

  • OpenSSL versions 0.9.3 through 0.9.7

  • Apache version 1.3 including migration from BenSSL to modSSL, PHP

  • GCC version 2.7 though 3.0

  • Cadence 2000

  • Opmaxx V2

Computer Sciences Tutor/Lab Monitor, Department of Computer Science, Portland State University, Oregon

• Tutored and assisted first through third year computer science students. Responsibilities included helping students debug basic through advanced programming assignments across several languages and operating systems; assisting students unfamiliar with the systems and operating systems provided by the university, and system administration.

Education:

Bachelors in Computer Science

Portland State University, Portland, Oregon

Includes academic and commercial application of C, C++, Java, Sun SPARC Assembly, lex/flex, yacc/bison, Bourne shell, Cryptography, Combinatorial Search, Computer Graphics, and Compiler Design on Solaris, MS/Windows, and Linux environments.

Professional Development/Memberships

• Contributing member of the Portland State University Computer Action Team (CAT)

• Contributing member of the Portland Linux User Group

• Supporting member, Portland State University ACM International Collegiate Programming Contest (ICPC) Team.

Independent Studies and Application

• Linux, FreeBSD, Xlib, OpenGL, glut, GLX, GTK, RCS, Python

• Attended 2004 O'Reilly Open Source Convention

• Attended 2003 O'Reilly Open Source Convention

Awards:

• Deans list, Portland Community College