KEITH A. OXENRIDER
3200 Kayson Street
Silver Spring, MD 20906 (USA)
-- Updated Jan 4, 2021 --
Education and Certifications.
List of Employers.
List of Publications.
List of Patents.
My Stack Overflow CV.
Keith Oxenrider has a diverse background (business management, biotechnology,
production management, and computer optimization) that he is eager to bring to bear on
solving complex problems. He has developed a strong interest in using
sophisticated programming techniques (such as Evolutionary and Genetic
Algorithms, Genetic Programming, and Machine Learning) to provide solutions to
problems that are currently handled by human experts. With a very strong
technical background (BS Biochemistry with over seven years laboratory
experience; since '96 programming and project management experience on Windows and UNIX (mostly Solaris and Linux)
platforms including more than 60K lines of C++ in more than 270 source files and 240 objects and
on MS SQLServer/Sybase over 14K lines of SQL including more than 100 stored procedures),
Mr. Oxenrider is well prepared for quickly assimilating new
situations and developing novel solutions to complex problems. With an MBA and experience
as a plant manager Mr. Oxenrider is also well suited for interfacing with management at all
levels. For two years he was 'elected' a Microsoft's Most Valuable Professional in the C++ category (MVP, 2003-2005).
My LinkedIn page.
For those of you interested in a more narrative approach to my eclectic background, here is a bit of an IT Autobiography
I have a TS/SCI with CI and FSP
C, C++, Java, Perl, Python, Visual Basic, SQL, Sybase, SQLServer, MySQL,
Postgrsql, CVS, SVN, CND, CNO Framework, TCP/IP, Ethernet, Wireshark,
IPv6, XML, ASN.1, CGI, Solaris, UNIX, Linux, Ubuntu, RedHat, Object
Oriented Programming/Design, Intrusion Detection (IDS/Snort),
Program/Process Optimization, Multi-threading/processing,
Bioinformatics, Genetic/Evolutionary Algorithms/Programs, Machine
Learning, Simulations, Scrum, Telecommunications,
STM / Synchronous Transport Module, bitHDLC, shared memory. TS/SCI w/FSP.
Education and Certifications:
Certified Scrum Product Owner October 2009
Certified Information Systems Security Professional (CISSP) December 2003 - December 2006
Master in Business Administration May 1995
The R.B. Pamplin College of Business
Virginia Polytechnic Institute
& State University
- Research Focus: The use of an Evolutionary Algorithm to optimize
assembly line launch orders
- Educational Focus: Entrepreneurship, High Growth Companies,
Negotiation, Awareness of Contract Law and Corporate Law, and Management
Pursued Master in Biochemistry 1993-1994
Virginia Polytechnic Institute & State University
Thesis: To design a de novo pyrophosphatase.
B.S. Biochemistry May 1991
Virginia Polytechnic Institute & State University
- With Naddiv Inc (11/2019 - Present)
- Consulting on the design for a secure cyber vault.
- With GliaCell Technologies (10/2016 - Present)
- Refactored, then maintained a mixture of C and C++ middleware that interfaced between embedded hardware and a Java-based UI.
- With STRATUS Solutions (4/2016 - 9/2016)
- C++ development related to mobile phone technology.
- With MasterPeace Solutions Ltd (1/2016 - 2/2016)
- C programming in a Linux/Unix environment learning to write loadable kernel modules and studying the ELF file format.
- With CyberCore Technologies (6/2014 - 1/2016)
- C++ developer writing test code for a high-speed network analysis system built on the OCTEON II CPU produced by Cavium.
- Was able to achieve more than 10 Gbps throughput fabricating TCP/UDP packets with various layers of tunnels, including fragmentation of IPv4/6. Fabrication started at Ethernet and continued through the addition of TCP/UDP payload and included correct production of checksums at each level. This throughput includes transmission to and receipt from network analysis system as well as analysis/comparison of actual output with expected output, in real time and capable of operating for extended periods (hours to days).
- The program uses lock-free threading via C++11 atomic variables.
- This work done on commodity LinTel hardware (dual CPU with 6 core each (12 threads each) and 100 GB of RAM).
- Analysis suggests that the design, with further code optimization, can achieve 40 Gbps on similar hardware with more cores and may potentially reach 100 Gbps with appropriate hardware.
- Adaptation of the above code used to produce a matched PCAP file for testing input IP Filter rules.
- With Momentum Resource Solutions (10/2013 - 3/2014)
Under contract with Hexis Cyber Solutions, a subsidiary of The KEYW Corporation: (10/2013 - 3/2014)
- C++ developer on the Hawkeye G product, a network intrusion detection / prevention system.
- Some experience with Windows Internals, Poco, WiX and OpenSSL.
- With JONY Software Solutions (1/2013 - 10/2013)
- Working with Tilera CPU for high-speed network processing.
- C++ programming on a Tilera platform for high-speed network applications.
- Removed a layer 1 protocol from channels within the telecommunication signals.
- Analysis of data output from FPGA processing of telecommunications signals
- Use of shared memory for high-speed communication betweens cores on Tilera.
- Compression of streaming data via Boost libraries.
- With MasterPeace Solutions Ltd (4/2010 - 1/2013)
- Re-implemented in C++ a network stack written in C executing
on top of TCP or UDP that includes message fragmentation / asynchronous
and out of order reassembly, encryption / decryption and authentication.
This work included writing test drivers to explore performance
- Maintained a 300K+ line C code CNO framework on
Unix/Win/Mac OSX/Linux (x86 and x86_64) written u sing an object
- Developed a C++ program to take the output of DTrace to use for performance analysis.
- Wrote a framework 'throughput' module to allow for
testing of the network throughput capabilities of applications under
more real-word conditions.
- Wrote a C++ program to deal with the unreliable connection to the SVN server so HUDSON regression tests would work reliably.
- Used Python for writing and executing regression tests.
- Taught classes on the framework.
- With AT&T Government Solutions (4/2009 - 4/2010)
- Was instrumental in the production and submission of a proposal response to a government BAA.
- Software/Systems Engineer for a network packet capture and analysis system targeted toward multiple 10 Gbps connections.
- Prototyped the (C++) code changes necessary for the system to become IPv6 compliant.
- Some experience with Snort and Wireshark.
- Developed a tool to compare the output from 'nm' with the
output from 'ctags' that would reveal the code in our repository that
was not actually being used in our executables.
- With Technology Ventures (8/2008 - 12/2008)
Under contract with Fannie Mae (FNMA): (8/2008 - 12/2008)
- Debugged Solaris to Linux migration issues including Release core dump analysis with smashed stack.
- General maintance of legacy 'Valuation Net' system.
- With Lockheed Martin (previously Management System Designers) (5/2001 - 4/2003, 2/2004 - 5/2008)
Under contract with the National Center for Biotechnology Information: (5/2001 - 4/2003, 2/2004 - 5/2008)
- Wrote more than 55,000 lines of C++ code in more than 270 files comprising over 240 classes.
- Working primarily on MS SQLServer and Sybase, wrote (or
substantially rewrote) more than 14,000 lines of SQL in more than 250
files including over 100 stored procedures.
- Using NCBIs C++ toolkit to write various programs to extract, process, and load ASN.1 formatted data
into an Entrez database.
- Loading, extracting, and prepping genome data to/from Sybase and SQLServer utilizing C/C++, Perl
and SQL scripts.
- Wrote well over a dozen CGIs (mostly in C++) to extract, process and report/display database information.
- Optimizing processes (modified one process that took more than 15 hours to take less than 15 minutes).
- Extensive experience working with Perl.
For Voice of America: (6/2000)
- Wrote a white paper discussing alternatives for bypassing censorship called "Peer-to-Peer
Alternative for Disseminating IBB Information to Censoring Countries". Please see
view a revised version of that document.
- Wrote a proof-of-concept program to demonstrate the feasibility of bypassing web censorship; please
- With Sol Biotech Inc (5/2003 - 1/2004)
- Wrote and submitted two SBIR grants to the NIH, one for an
evolutionary algorithm-based machine learning program to elucidate the
rules for protein folding, another for the design and expression of a
synthetic anti-freeze protein.
- Began writing a shift scheduling program that is Java/Web-based. Targeted toward scheduling nurses.
- Began design of a protein fold prediction algorithm.
- Collected bits of program source (mostly C++) and a few writeups on secure and performance programming here.
- Acted as a mentor on several C/C++ developer forums (nearly 5,500 posts total) primarily at the Dev Shed with the handle 'mitakeet'.
- Experience with Computer Extension Professionals under contract with
KoSa: (5/98 4/2001)
- Success with the initial portion of a shop floor data collection system called Production
Data Interchange (PDI) lead to a call from senior plant management to extend PDI throughout the
entire plants manufacturing process. The extension of PDI reached the stage where almost 80% of
the manufacturing was under tracking control of PDI and the remaining 20% was expected to be included
by Summer 2001. This system includes the use of hand-held scanners accessing the network via a remote
frequency (RF) radio interface. The PDI system was documented to reduce headcount by 8 and save
over $300,000 per year in labor costs.
- Managed the conversion of MOMS (Machine Operation Management System, an HP based program written
in Transact) to a Windows based interface written in Visual Basic 6 accessing a SQLServer 7 database
called PDI utilizing a touch-screen interface and barcode scanning data entry. Deployed mid November 1999.
- Acted as technical lead for Visual Basic and SQLServer
development, providing design, performing code reviews, and ensuring
adherence to standards. Mentored other developers, teaching them
implementation details of Visual Basic, C/C++, ADO, and SQLServer.
- Designed and implemented a generic database maintenance
tool (in VB) that allows users full access to the database information
that is within their scope. Access is protected by passwords and tables
are restricted by groups.
- Wrote a Server program in C++ to act as an interface for
hand-held scanners. This program uses ADO to access the SQLServer 7
- Designed and coded approximately 70% of a series of
Visual Basic 6.0 application interfaces for collecting manufacturing
run-time information representing more than 77,000 lines of code, 115
forms, 22 user controls, and 28 modules. The applications, called as a
group Production Data Interchange (PDI), interface with a SQLServer 7.0
database with near real-time visual display of collected data.
- Acted as DBA for SQLServer 7.0 database during
development, including the writing of stored procedures and triggers,
loading data, and ensuring backups and other database maintenance.
- Designed a Java application (Java version 1.1.6) to track
work hours by developer and project. Application places this
information into a restricted access database via password
- At Vector Research: (11/96 - 5/98)
- Managed design and development of Lotus Notes in-house marketing
- Team Leader for a group (9 people of diverse backgrounds) tasked to
develop marketing material lauding the past works of Vector Research and
projecting their Solution Capability into the future.
- Deputy Director of Testing and Technical Lead. Provided mentoring and
motivation for testing personnel (6 people). Reviewed teams test cases
and test plans to verify documents met the test requirements.
- Chair of Code-reuse committee: prepared a proposal to present to
senior division management detailing the implementation of the hardware,
software, and policy needed to create an atmosphere where good programming
code can be maintained in a useable format to be easily assimilated into
new or ongoing programming projects.
- Initiated and developed an in-house marketing proposal to build a
Materials Requirements Planning software package that included a built-in
optimizer based on the Evolutionary Production Sequencer (Please see www.sol-system.com/eps).
- Beginning first as assistant project leader, became acting project
leader when current leader began 3-month maternity leave. Managed the
flurry of activity surrounding the run up to product release, then, when
the release was put on hold, wrote a plan to address the perceived shortcomings
of the product. Put into place the approved changes to the
- As Testing Technical Lead, designed and implemented scripts and C
programs to enhance the reproducibility of testing process and to allow
creation of test data that contained the entire range of expected and the
expected unexpected values.
- Wrote a program to compare data stored in an ASCII file (containing
more than 2.7 million records) with the contents of other ASCII files and
modify those other files based on matches found in the first file. The C
program processed more than 2,500 files containing more than 1.5 gigabytes
of information in 3 hours.
- Have written several C utility programs: to modify large (GB) flat
ASCII files; to parse positional and delimited records from flat files; to
change the contents of positional and delimited records for use in testing
database loading programs.
- Experienced writing and modifying SQL scripts to interact with records
in a multi-table database.
- At Eagle Design and Management: (12/95 - 3/96)
- Experienced with UNIX, SED, and AWK scripting to modify large (up to
100 MB) ASCII files for loading into a database.
- With another programmer, and under extreme time pressure (less than 2
weeks), learned a proprietary new language, new compiler, new debugger,
and used that to modify a program written in this language to successfully
add certain functionality to the program.
- During MBA studies: (12/94 - Summer 95)
- Prepared strategic management analysis on Genentech, Inc. (among the
first biotech companies formed, and still among the largest in size and
- Prepared business plan for creating a management consulting business
focusing on facilitating business between US and Chinese companies.
- Designed and developed a C application called The Evolutionary
Production Sequencer (Please see www.sol-system.com/eps), an
algorithm for sequencing product launch orders for a mixed model assembly
line. Required the creation of code to simulate an assembly line
environment both with and without components being built in a Just-In-Time
manner. Required the creation of new evolutionary algorithm modules in
order to successfully evolve toward a solution. This research has led to
two published abstracts and a full paper in Decision Sciences (See
- Experience gained on own:
- (2004/2005) Wrote applications to dynamically write binary instructions to memory and execute them. Please see http://sol-biotech.com/code/SelfModifyingCPUID/SelfModifyingCPUID.c for a C version and http://sol-biotech.com/code/CPE/CPE.cpp for a C++ version.
- (2/2001) Have written an on-line DNA Analysis tool in C++ that will
translate or perform a restriction digest on a DNA sequence.
- (10/2000) Wrote a program in Visual C++ to perform restriction digests
and translations of DNA sequences and to simplify the design of
overlapping sequences for gene construction.
- (6/2000) Wrote and installed a medical package for The Mendoza Eye,
Ear, Nose and Throat Clinic. This Visual Basic 6 / SQLServer 7 package is
user configurable, allowing the medical practice to alter and track drug
inventories, patient diagnoses, and the charges for each. The system
includes patient billing and accounts receivable.
- (1/99) Wrote CGI programs in C that protected access of encrypted server data via
- (Ongoing) Established and maintained a web site http://www.sol-system.com/ to
experiment with different web techniques.
- (Summer 97) Wrote a C prototype for a JAVA implementation of a Visual
Evolutionary Algorithm. Please see The Visual EA Site (www.sol-system.com/vis_ea).
- (Spring 97) Conceived of, designed, and developed a proof of concept
algorithm (in C) demonstrating encryption using chaos with a key that was
up to 90 bits long and with a practical key twice as long.
- (Work begun early 96) Designed and coding (in C) an Evolutionary
Algorithm based learning program designed to elucidate the rules behind
the precise folding of the three dimensional structure of proteins.
- (Summer 96 - Fall 96) Developed and marketed Management and
Accounting Services, a consulting company.
- (Spring 95 - Summer 95) Organized a team (including a senior project
manager for a Fortune 50 company and a Professor at a major US University)
to market and distribute self-developed production optimization software
(The Evolutionary Production Sequencer, please see www.sol-system.com/eps). Was
speaker for on-site presentations to potential customers of software.
- (Fall 93 - Summer 94) Developed and marketed a proposal for building
an ice arena near the campus of Virginia Tech. Was featured on a regional
televised news broadcast and in regional and on-campus newspapers.
- As the Plant Manager at Premier Chemicals: (1/87 - 8/88)
- Developed and maintained production scheduling to meet demand subject
to availability of raw materials.
- Was directly responsible for production line design and
- Oversaw inventory control and product quality control.
- Implemented changes in SOPs to improve inventory and product quality
- Work experience with Sol Biotech Inc (5/2003 - 1/2004)
- Began design work on an anti-freeze protein.
- Began design work on a class of metal ion binding proteins.
- Continued work on pyrophosphatase (see below).
- Continued design work for the construction of molecular scale computing components.
- As a free-lance researcher (95):
A second (first described below) de novo protein project was begun
in spring of 1995 to design and express a synthetic anti- freeze protein.
After similar design work as below, the gene was created by ligation of
overlapping oligos, inserted into an E. coli plasmid and the
production of the protein was induced. This effort was rewarded by the
production of large (2-5% total protein) amounts of the de novo
- As a student in the Master of Biochemistry program ('93-'94):
Thesis project was to design and express a de novo protein that
would fold into a three dimensional form that would have an active site for
the catalysis of pyrophosphate into phosphate. The protein was first
designed with accurate physical plastic models, then translated into
coordinates to be used in a computer model. The computer model was subjected
to simulated annealing. Modifications to the primary structure of the
protein were made until the simulation indicated that the structure was
stable. The primary sequence of the protein was translated into codons
common to highly expressed E. coli proteins, oligos selected to
represent the gene of the protein, the oligos PCRed to create the gene.
After the gene was inserted into an E. coli plasmid the sequence was
verified and the protein was induced.
- As a student and as a full-time laboratory employee (89-93):
Various experience working with molecular biology techniques; DNA
sequencing; PCR; extensive experience working with radioisotopes; normal and
transformed animal cell culture; Archeabacterial, bacterial, and yeast cell
culture; and protein purification.
- Published 4 papers. (See below)
List of Employers:
Security Consultant Nov. '19 - Present Naddiv Inc, Denver, CO
C++ Developer Oct. '16 - Present GliaCell Technologies, Centreville, MD
C++ Programmer Apr. '16 - Sep. '16 STRATUS Solutions, Fulton, MD
Principal Software Engineer Jan. '16 - Feb. '16 MasterPeace Solutions Ltd, Columbia, MD
Software Developer Jun. '14 - Jan. '16 CyberCore Technologies, Elkridge, MD
C++ Developer Oct. '13 - Mar. '14 Momentum Resource Solutions, Edison, NJ
Senior Computer Scientist Jan. '13 - Oct. '13 JONY Software Solutions, Columbia, MD
Principal Software Engineer Apr. '10 - Jan. '13 MasterPeace Solutions Ltd, Columbia, MD
Govt Sr Spec Software Design Apr. '09 - Apr. '10 AT&T Government Solutions, Columbia, MD
Senior C++ Programmer Aug. '08 - Dec. '08 Technology Ventures Inc., Vienna, VA
Senior Systems Analyst Feb. '04 - May '08 Lockheed Martin, Bethesda, MD
President, PI May '03 - Jan. '04 Sol Biotech Inc., Silver Spring, MD
Senior Systems Analyst May '01 - Apr. '03 Management System Designers Inc., Vienna, VA
Project Manager May '98 - Apr. '01 Computer Extension Professionals Inc., Columbia, SC
Senior Scientist Nov. '96 - Apr. '98 Vector Research Inc., Arlington, VA
Computer Consultant July '96 - Oct. '96 Management and Acct. Services, Fairfax, VA
Programmer II Dec. '95 - Mar. '96 Eagle Design and Management, Bethesda, MD
Laboratory Specialist May '91 - Aug. '93 Virginia Tech, Blacksburg VA
Dragon Gunner Feb. '89 - Oct. '92 VA Army National Guard
Plant Manager Jan. '87 - Aug. '88 Premier Chemicals, Burke, VA
Compound Preparation May '87 - Nov. '87 Hazelton Labs, Vienna VA
Armorer May '82 - May '88 US Marine Corps Reserve
List of Publications:
Robert T. Sumichrast, Keith A. Oxenrider, and Edward R. Clayton. "An
Evolutionary Algorithm for Sequencing Production on a Paced Assembly Line".
Decision Sciences Winter 2000 edition, 31(1): 149-172.
Robert T. Sumichrast, Keith A. Oxenrider, and Edward R. Clayton.
"Assembly Lines: Aligning Assumptions with Reality". Pages 249-250. The
Proceedings of the 24th Annual Meeting of the Southeastern Chapter of DSI.
Keith A. Oxenrider, Eugene L. Oxenrider, Edward R. Clayton, and Robert
T. Sumichrast. "Use of a Genetic Algorithm to Generate Product Sequences for a
Mixed-Model Assembly Line". Pages 337-339. Proceedings of the 31st annual
meeting of the Southeastern Chapter of the Institute of Management Sciences.
Keith A. Oxenrider, Madeline E. Rasche, Marc V. Thorsteinsson, and
Peter J. Kennelly. "Inhibition of an Archeal Protein Phosphatase Activity by
Okadaic Acid, Microcystin LR,or Calyculin A". 331(3): 291-295. FEBS
Keith A. Oxenrider and Peter J. Kennelly. "A Protein-serine Phosphatase
from the Halophilic Archeon Haloferax volcanii". 194(3):1330-1335.
Biochemical and Biophysical Research Communications, 1993.
Peter J. Kennelly, Keith A. Oxenrider, Jei Leng, John S. Cantwell,
and Ningyue Zhao. "Identification of a Serine/Threoning-specific Protein
Phosphatase for the Archeabacterium Sulfolobus solfataricus".
268(9):6505-6510. The Journal of Biological Chemistry, 1993.
Keith A. Oxenrider, Guojun Bu, and Tomas O. Sitz. "Adenosine Analogs
Inhibit the Guanine-7-Methylation of mRNA Cap Structures". 316(3):273-277.
FEBS Letters, 1993.
List of Patents:
USPTO #9222130 Method and apparatus for sequencing molecules
The invention comprises a polymer sequencing chip. In one embodiment, an open nano channel is used in the surface of a semiconductor material or glass as a conduit for the polymer and the resulting monomers released from the polymer. As the resulting monomers pass through the nano channel, a detection device reads the sequence of monomers. Preferably, multiple micro LEDs are used to emit a signal when different monomer units pass through a region of the nano channel, such that multiply parallel sequencing operations can be conducted at the same time on a chip.