• Strong knowledge of C, Linux, GNU tools, and the UNIX development style.
• Specializes in low-level programming, particularly for networked applications.
• Experience working with users and developers in large, wide-spread development teams.
• Developer of Free Software and supporter of distributed software engineering.
• Expertise in the mobile and instant messaging space.
• Auxiliary knowledge in corporate finance and financial markets.

• (Application Pending) A1-20030131061: Transparent proxy server for instant messaging system and methods

• System performance testing and comparison to certify new hardware for computation nodes and database servers
• Built new development cluster, including network, VPN, central authentication, and QA support tools
• Assist developers in fault-tolerant cluster design and automation.

• Deploy and maintain several different Tomcat and PHP-based websites in fault-tolerant configurations.
• Built out datacenter cage from scratch, including network and automated installation of new machines.
• Assist developers with code instrumentation, statistics, and lower-level tasks.

• Oversaw the maintenance and expansion of the company's satellite IP network based on iDirect technology.
• Managed end-user Voice over IP network and connectivity to public telephone networks.
• Developed techniques to improve the ongoing performance of voice and data traffic over satellite IP links.

• Designed ActiveBuddy Interactive Agent hosting platform and coded the dispatcher and message router components.
  • Involved designing a UDP-based inter-node protocol to exchange dynamic routing updates and maintain a stable cluster topology after host failover.
• Wrote components to connect to over a dozen different instant messaging networks, most requiring reverse-engineering.
• Led technical side of the BuddyScript Connectivity Services for wireless connectivity hosting
  • Started IMDSR project, including core and several modules utilizing a variety of devices to provider connectivity to GSM and Mobitex networks.
  • Developed client software to bring ActiveBuddy Interactive Agents to the RIM wireless email/PDA devices

Ported a real-time operating system from its native platform (the fixed-point Analog Devices ADSP-2181) to the next-generation floating-point ADSP-21065L SHARC platform.

• Wrote a series of tools to trap the execution of older, unsupported instructions and flag them
• When possible, allowed instructions to be automatically replaced with the their SHARC equivalents without interrupting execution
• Kept within timing constraints for attached bit-banged serial devices and codecs.
• Wrote adspsim, a software simulator for the ADSP-2181, as an intermediate tool

Installed and performed short-term maintainance on various inter-office ISDN WAN connections and mixed Linux/Windows LANs.

• Developed modular architecture for IM routing and application hooks, including an RPC mechanism for use between peered servers.
• Wrote support for AOL Instant Messenger, MSN/Windows Messenger, Yahoo Messenger, and IRC, among others.
• Designed inter-server message routing architecture and protocol for use in building trusted networks of IM users.

• Reverse-engineered the AIM protocol, examined packet traces and built tools to provoke the official clients into behaving in certain ways to provide useful traces.
• Provided freely available documentation on the protocol, in both code and prose.
• Designed the libfaim API to track a changing client user base as instant messaging gained widespread acceptance in free software world.

• Light-weight, minimalist library for easing the use of non-blocking BSD sockets.
• Supports Linux and FreeBSD quirks.
• Winsock2 (Win32) sockets supported using event object notification with the same API as UNIX.

• Structured to isolate instability of externally hosted wireless access services.
• Work consists of
  • Core router (the DSR)
  • XML-based control and message transfer protocol
  • Components to provide access to a variety of wired and wireless services, including SMS and Mobitex

• Specifically targeted for the RIM wireless device using Mobitex as a link-level transport.
• Implemented support for:
  • IPv4 (minimum Host Requirements, multiple interfaces)
  • ICMP (echo and basic errors)
  • TCP (passive and active connects)
• Includes a simple web server.

• Parses the dynamic link tables from the RIM application binaries and binds them to an emulated API, all other code runs natively on the host CPU.
• Used as a testing and development platform for intermobi and other RIM projects.

• Transformed the SysKonnect driver into a generic core and card-specific modules.
• Wrote modules to support Madge and Olicom brand devices
  • Required reverse-engineering for initial support
  • Extensive lobbying to those companies brought publicly available programming documentation

• Implemented opcode-level simulator of ADSP-2181 fixed-point digital signal processor for UNIX platforms.
• Supports DSP code profiling
• Offers hooks for emulating serial-port and memory-mapped devices

• Landscape and low-light photography
• Corporate finance
• Public and private capital markets
• Geology and plate tectonics
• Natural and human history of the Mojave desert and the Colorado Plateau