• Career Software Architect and Consultant who enjoys writing small, fast, elegant software. Long-term projects are preferred where I can build from the ground up, from inception through product delivery. Can work independently or with your team.
• Creator of real-time messaging application https://sked.skccgroup.com.
• Creator of OOSMOS, the Object-Oriented State Machine Operating System. https://www.oosmos.com.
• Former member of the Software Defined Radio Forum (SDR Forum) representing Motorola.
• Former member of X3J16, the ANSI C++ standardization committee.
• Patent as co-inventor of Covidien's dual-head power injection system supporting simultaneous injections.
  (https://www.google.com/patents/US20130245439)

• Recent: OOSMOS, TypeScript, Docker, Node.js, Websockets, Python, SQLite, Networking, state machines, and Git.
• Expert in C, C++, IBM's Rhapsody, hierarchical state machines, large-scale software architecture, object-oriented design, real-time embedded systems, performance optimization, PERL, PHP, real-time CORBA internals, and compiler design.
• Proficient in Python, Java, UML, VBA, HTML, XML, CSS, Assembly, Win32, Unix/Linux, MS-DOS, pSOS, VxWorks, Integrity, MQX, Liberty OS, Clearcase, databases (SQLite, MySQL, Access), SQL, PEG, X86, 68xxx, DSPs, Software Defined Radios (SDR), PCI bus, TCP/IP, Sockets.
• Experience with C#.

OOSMOS, LLC	March 2013 to Present
Phoenix, AZ	President, Chief Scientist

• Creator of OOSMOS — The Object-Oriented State Machine Operating System. https://www.oosmos.com
  • Designed and implemented the complete operating system.
  • Implemented the statechart-to-C code generator in Typescript.
  • Implemented the OOSMOS website using a custom object-oriented PHP framework. The website is completely responsive; meaning the same set of code supports both desktop and mobile devices.

Stress Engineering Services, Inc.	March 2017 to April 2018
Mason, OH	Consultant

• Using the OOSMOS operating system targeting an STM ARM processor, designed and implemented the software for a wound suction medical device. The device obtained FDA clearance on the first pass.

Reliance Medical Products	August 2012 to March 2013
Mason, OH	Consultant

• Reimplementation of two medical devices: an ophthalmic exam chair and instrument delivery system. Written in object-oriented C on the PIC32 platform using the OOSMOS operating system.

GE Healthcare	May 2010 to July 2012
Milwaukee, WI	Consultant

• Working with GE Healthcare's Principle Engineer, designed and implemented a Rhapsody-based distributed object framework to support implementation of GE Healthcare's next generation CT scanner.
• Using Rhapsody's JavaAPI, designed and implemented an automated mechanism to generate communication proxies from interface definitions specified graphically in a Rhapsody model.
• Acted as principle Rhapsody mentor to quickly get the team using Rhapsody's advanced features effectively.
• Provided initial design for the Axial Rotation Subsystem — the subsystem that drives the large rotating element of the CT scanner gantry.

Covidien	January 2006 to November 2009
Cincinnati, OH	Consultant

• Using Rhapsody, OXF, C++, UML, and PEG, redesigned and reimplemented a dual-syringe injection medical device.
• On an existing power injector, rearchitected all motor control elements and directed performance improvements that reduced CPU usage from over 100% to less than 25%.
• Designed and implemented a motor control PID algorithm to assure safe pressure levels of fluid within syringe during injections.

Northrop Grumman	April 2005 to December 2005
San Diego, CA	Consultant

• Established end-to-end software development process using PERL on top of Clearcase, including automated builds of Rhapsody models.
• Developed and presented advanced CORBA C++ training to JSFCNI developers.
• Regular presenter of software engineering best practices to JSFCNI developers.

Tyco Healthcare	February 2005 to April 2005
Cincinnati, OH	Consultant

• Tuned motor control PID algorithms of an injection device written in C++ to detect and react to real-time anomalous pressure.

Northrop Grumman/PrismTech, LTD	January 2004 to November 2004
San Diego, CA/Newcastle, England, UK	Consultant

• Worked with PrismTech and Northrop Grumman engineers to identify and mitigate high-risk CORBA performance and transport related issues with existing C and C++ CORBA ORB technology.
• Ported the C-based CORBA ORB I wrote while at Motorola to a proprietary processor selected by Northrop Grumman's JSFCNI program and implemented significant performance optimizations. Metrics are proprietary.
• Prototyped a C++ CORBA ORB, targeting Windows and a proprietary processor.

Glenn Software Consulting, Inc.	Mar 2003 to Dec 2003
Phoenix, AZ	E-commerce Web Developer

• Using PHP, JavaScript, AJAX and MySQL, developed e-commerce web sites including associated content management systems.

Northrop Grumman Electro-Optical Systems	Oct 2002 to Feb 2003
Tempe, AZ	Consultant

• Using C++ and Visual Basic, upgraded a test station that used fiber optic communication for a proprietary military high altitude thermal camera application.

Accenture	July 1999 to May 2002
Minneapolis, MN	Consultant

• Designed and implemented a message exchange system in C++, XML and CORBA for Accenture's Launch-Now startup venture.
• Designed and implemented a complete workpacket and life cycle configuration management system in PERL on top of Clearcase.
• Designed and implemented a complete general-purpose database management system in PERL on top of Oracle.

Motorola SSPD, Wireless Information Transfer System (WITS)	January 1998 to July 1999
Scottsdale, AZ	Consultant

• Designed and implemented a real-time CORBA ORB for C, the foundation of Motorola's WITS software defined radio distributed object architecture. This 'C' ORB is 3 times faster than Washington University's 'TAO' ORB. It runs on NT, VxWorks, as well as on a SHARC DSP (a first in the industry).
• Designed and implemented the CORBA IDL to C compiler, written in Java, to complement the WITS ORB.
• Co-developed the WITS object-oriented radio framework in C. Worked with Motorola's Chief Scientist to introduce this framework to industry for standardization by the Software Defined Radio (SDR) Forum. This framework was the earliest form of today's SCA.
• Developed the WITS radio simulation platform on Windows, able to simulate the operation of the entire radio. This platform is the principal WITS testing platform.
• Designed and implemented a real-time, write-only, PCI-based shared memory OSI transport layer in C.
• Technical lead of the WITS software infrastructure, responsible for the CORBA ORB, Radio Control, RF and SNMP components, all written in C.
• Developed and evangelized the WITS software architecture strategy: Distributed object technology using CORBA.

Motorola SSTG, SPEAKeasy II	November 1995 to January 1998
Scottsdale, AZ	Consultant

• Contributing system designer and implementer of the Motorola SPEAKeasy multi-band multi-mode reprogrammable radio successfully demonstrated at military training exercises at Task Force XXI in March, 1997.
• Software lead of the System Control and INFOSEC product teams.

Platinum Technology	May 1995 to Nov 1995
San Francisco, CA	Consultant

• Implemented major modifications to the Microsoft MFC object-oriented class framework to lift severe 32K object size limitations. The modified MFC was used to implement Platinum's successful SQL-Coder database management application.
• Ported the C++ Windows-based SQL-Coder application to UNIX.

Andersen Consulting	Apr 1992 to May 1995
Minneapolis, MN	Consulting Technical Project Leader

• Lead designer and co-implementer of Andersen Consulting's Universal Construction Toolset (UCT), Andersen's client/server middleware that allows rapid development of GUI, batch and server applications for Andersen clients on a wide range of platforms.
• Designed and co-implemented UCT's object-oriented GUI in C++.
• Implemented a complete, generalized data entry, validation, translation and editing library for date/time, floating point and masked data entry in C++.
• Designed and implemented a generalized, reentrant, automated testing system API in C++. Using this testing interface, programmers can build self-verifying tests right into the system that execute at startup, before main() is called.
• Designed and implemented a complete, generalized, object-oriented date and time library in C++. Features include symmetric format strings for parsing input and formatting output, daylight savings time support, time zone conversions, extensive date/time arithmetic, and entire Gregorian calendar support and date/time validation.
• Designed and implemented a suite of server self-tests in C++. Traditionally, server tests involve complicated setup of at least one client and one server process, possibly on more than one machine. This server test is a single, self contained, multi-threaded client and server executable that "talks to itself," reducing setup and maintenance time.
• Designed an integrated exception handling mechanism. Not all compilation systems that UCT uses support the C++ exception handling mechanism.
• Developed and wrote the project's C++ coding standards.
• Designed and implemented a multi-database API in C++. Currently supports two implementations, Sybase and Oracle.
• Designed and implemented a complete Microsoft Excel-compatible data formatting library in C++.
• Designed and implemented a complete, generalized "canonicalization" library in C++ to handle the necessary byte-swapping and type promotion to allow data transfer between machines of different architectures in a heterogeneous environment.
• Designed and implemented a generalized memory debugger for C++ by overloading the 'new' and 'delete' operators. The system can detect memory leaks, corruption, reads of uninitialized or freed memory, and multiple frees of the same memory area.
• Designed and implemented the primary mechanism that makes UCT so portable-using C++'s ability to support multiple implementations under a single interface, rather than the traditional use of #ifdef's.
• Designed and implemented a portable startup mechanism that allows C++ objects to be constructed and destructed in a predictable order in the "shared library" environments of Windows and UNIX.
• Co-designed a portable socket communication interface in C++ that cooperates with the multi-platform multi-threading library mentioned above. Currently supports Winsock for Windows and Unix Sockets for both SVR4 and Berkeley.
• Ported UCT to Windows 3.1 and AT&T UNIX SVR4 platforms. Assisted others with ports to all other platforms.
• Taught classes on C++ and object-oriented design. This project was Andersen Minneapolis' first exposure to C++ and object-oriented software development.

Sun Microsystems	Sep 1991 to Apr 1992
Phoenix, AZ	Consultant

• Joint venture between Sun Microsystems and Andersen Consulting to develop Andersen's next generation of client/server C++ middleware, now called UCT (Universal Construction Toolset).
• Assisted developers in transition from C to C++, introducing them to object-oriented design and development.
• Designed and implemented a program generator in C++ for UCT that read a design database and produced ANSI C source code. Programmers then augmented this code with business logic.

Loral Defense Systems	May 1991 to Sep 1991
Goodyear, AZ	Consultant

• Integrated a landing system for an unmanned "drone" helicopter in C++.
• Implemented in C++ a multi-board device driver for the Motorola MVME332 Intelligent Communication Controller.

Glenn Consulting	Feb 1989 to Apr 1991
Phoenix, AZ	Software Engineer

• Designed and implemented an ANSI C compiler for the 680xx-based Amiga personal computer written in ANSI C.
• Implemented a complete ANSI C compliant preprocessor in ANSI C. The only compiler out of eight competitors that actually execute the examples in the standard correctly.
• Implemented a complete ANSI C compliant run-time library, including memory management, standard I/O facilities, floating point math routines, and date/time manipulation.
• Implemented an ANSI C test suite to test coverage of features, global name space pollution of the run-time library, and "edge" conditions that many compilers fail.

Loral Defense Systems	May 1988 to Feb 1989
Goodyear, AZ	Consultant

• Designed and implemented hardware interface libraries for a radar system in C++.
• Taught introductory C++ classes to project members.

Honeywell Bull, Inc.	Apr 1988 to May 1988
Phoenix, AZ	Consultant

• Designed and implemented a high-level structured, custom script language in C++ for Microsoft Windows and MS-DOS.

DDC International, Inc.	Oct 1987 to Apr 1988
Phoenix, AZ	Senior Software Engineer

• Co-designed the DDC-I VAX to 80x86 Ada run-time system for real-time embedded system applications. Primary objectives were minimal size of required code and data space as well as fast execution of memory management and the Ada tasking model. The result is the smallest and fastest Ada runtime environment in the industry.
• Acted as technical liaison between the Phoenix and Copenhagen offices, spending 15% of my time in Denmark.

ITT Courier Terminal Systems, Inc.	Feb 1985 to Oct 1987
Tempe, AZ	Senior Software Engineer

• Lead software designer and implementer of an IBM PC compatible high resolution graphics workstation.
• Implemented a complete character-based windowing system and user interface in C.
• Implemented MTX, a portable real-time multitasking executive in C. MTX runs under UNIX, MS-DOS and as a stand-alone operating system suitable for embedded systems.
• Implemented a chip-level device driver on an IBM PC for an ITT-proprietary coax PC board in C. The driver used MTX to meet its real-time constraints.

Texas Instruments	Dec 1983 to Feb 1985
Dallas, TX	Software Engineer

• Implemented in C the XNS network protocol on an IBM 4341 running VM/CMS for international factory automation applications.
• Improved the performance of an existing C multitasking system for use in a virtual machine running under VM/CMS by over 600%.
• Implemented network performance analysis tools in C to verify optimal network configuration and performance.
• Developed high-level interprocess message communications interface to allow C and Pascal programmers on VM/CMS to transfer data between Virtual Machines.

Texas Instruments	Oct 1982 to Dec 1983
Lubbock, TX	Software Engineer

• Designed and implemented a UCSD Pascal compatible compiler for the TI 9900 microprocessor based 99/8 computer. Written in Pascal, it included global optimization using flow analysis, elimination of redundant range checking and subexpressions, and support for symbolic debugging.
• Supported interpreter for GPL (Graphics Programming Language), the language used by most Texas Instruments Home Computer programs.

Honeywell Large Computer Products	Jun 1979 to Oct 1982
Phoenix, AZ	Software Engineer

• Co-designed a multi-environment COBOL 85 globally optimized compiler, capable of generating code for the Honeywell CP6, GCOS, and Multics operating systems. Implemented the code generator and code generation related parts of the front-end.