Sue Ricket Caldwell
6804 Rockledge Cove
Austin, Texas 78731


To fully utilize my skills and experience in a challenging programming position.


Over forty years' software/hardware development experience on both government and commercial products. Experienced team leader in software and software/hardware projects. Experienced in the requirements of software development under DO-178B and MIL-STD-2167. Skilled in preparation of technical proposals and software documentation. Experienced in presenting technical information clearly and concisely to customers and co-workers.

High level languages include C and FORTRAN. Assembly languages include 68000 and Supersimpal. Computer environments include Microsoft Windows 3.1, XP, NT, and Vista; IBM PC/DOS; IBM AIX; VAX/VMS; and UNIVAC/Exec 8.


FreeFlight Systems, 3700 Interstate 35 South, Waco, Texas 76706-3756
Contract Programmer, 2002-present. Provide support as needed for the PC-based database packing software for the TNL 2000 Navigator series. Also support the corresponding database unpacking within the Navigator.

Trimble Navigation, 2105 Donley Drive, Austin, Texas 78759
Software Engineer, 1993-2001. Active participant in the development of the TNL8100 and HT9100 GPS satellite navigation systems. Responsible for the design, development, and testing of the data base processor component for each system; this component retrieves airport and navigation information from an internal data base and transmits it to the host processor. Also responsible for the design, development, and testing of the PC-hosted software which reads ARINC 424 navigation data and compresses it into the internal data base format for the TNL8100 and HT9100 products. Responsible for maintenance of related PC software used for Trimble's Navigator. Development has been in Microtec's C and 68000 assembler for embedded systems, and in Watcom C++ and Borland C for data base packing.
Member of Technical Staff, 1990-1992. Designed and implemented aircraft sensor interfaces for a traffic collision avoidance system (TCAS). Developed a personal-computer-based assembler, linker, and support software in Turbo C for the Supersimp, Trimble's proprietary RISC microprocessor. Developed a cross-reference program and automated documentation generator program for C and assembly-language programs. Documented and tested a GPS/Omega navigation system, resulting in FAA certification.

International Business Machines, 11400 Burnet Road, Austin, Texas 78759
Software Engineer III, 1992-1993. Responsible for printer commands in the AIX team.

Tracor Aerospace, 6500 Tracor Lane, Austin, Texas 78725-2070
Engineer/Scientist III, 1985-1990. Active participant in the development of a GPS satellite navigation system. Responsible for the design and development of built-in test firmware for a countermeasures dispensing system, written in MIL-STD-1750-A assembly language operating with an Ada executive. Gateway team leader in the successful verification effort for a military local area network program; responsibilities included analyzing hardware and software component requirements and devising simulation tests to demonstrate compliance with requirements. Lead programmer for a low-cost miniaturized Omega/VLF navigation unit for remotely piloted vehicles.
Software Engineering Manager, 1979-1985. Administrative and technical manager for a staff of ten programmers. Participated actively in the design, implementation, and world-wide airborne testing of firmware for Tracor's 7800 Omega/VLF aircraft navigation system. Lead programmer in developing firmware for the navigation data unit of a large windfinding system for the Army; responsible for design and implementation of several computer program components, system integration, field testing, and supervising military standard format documentation effort. Maintained the assembler, loader, and support software for the Supersimp, Tracor's proprietary RISC microprocessor.
Senior Systems Programmer, 1976-1979. Responsible for the design, implementation, and sea-trial testing of firmware for a meteorological data acquisition system, sponsored by the World Meteorological Organization. Responsible for the design and implementation of firmware for a target simulator for a line array sonar.

Applied Research Laboratories, The University of Texas at Austin, 10000 Burnet Road, Austin, Texas 78758
Research Scientist Associate, 1972-1976. Developed detection, tracking, and classification algorithms for a ship's sonar computer aided detection system. Designed and developed software for a computer-based acoustic target strength measurement system. Developed a digital simulation of a torpedo data acquisition system, and participated in the development of detection and tracking algorithms for a computerized torpedo counter-countermeasure system.

Logicon, Inc., San Pedro and San Diego, California
Member of Technical Staff, 1967-1972. Developed and documented an interpretive computer simulator to identify functional requirements for a reentry vehicle's onboard computer. Developed a model flight program, including reentry guidance, inertial navigation, and control equations. Developed and integrated radar and motion sensors modules for a real-time, multi-computer naval training simulation system.

B. A., Mathematics and Astronomy (Magna Cum Laude), University of Southern California, Los Angeles, California, 1967. Honors: Phi Beta Kappa, Phi Kappa Phi, Alpha Lambda Delta.


Austin Gilbert and Sullivan Society (newsletter editor). Society of American Magicians. Mensa. Dale Carnegie graduate. 4th Degree black belt in Taekwondo from the Korea Taekwondo Association.

References available upon request.