Douglas S Johnson

**** ****** **., **********, **. 35805

ac0sm2@r.postjobfree.com 256-***-****

Summary

A talented Senior Programmer/Team Lead Engineer with a strong background in scientific and user interface programming.

Technical

Languages: FORTRAN, C, C++, Python,C#, ProC, Pascal, Basic, Assembly Languages

Operating Systems – VMS, UNIX, Limited Windows 95, Linux

Tools: glade, Visual Studio

Certification: Security+, Linux+

Employment History

H & R Block - 2007 through present

Income tax preparer and instructor.

KRS – Kwajalein Range Services

(February 2012 – August 2015)

I made field modifications to software originally written by MIT, for real-time control of radar assets at the test site. I also served as radar control operator for several test activities.

NASA (last contractor: Computer Sciences Corporation) (February 1986 – February 2012)

Working as a NASA contractor, I have been involved with the development team for the Data Reduction facility at MSFC, obtaining and storing current and historical engineering data for space shuttle, payload, and related ground activities. This data is a varied collection of information including but not limited to temperatures, pressures, and vibrations. The data comes from several sources, including live telemetry from the systems concerned, playbacks of such data, and file transfer of data in several file formats. Engineering users have access to this data for in-depth study in several modes (files, database access through Data Reduction library modules and via GUI). As of July 2011 there are 9023 databases defined, containing 5,855,180 measurements. All total in those measurements are 416,411,897,895 time-data values.

Used POSIX real-time features on the SGI and Linux platforms in C.

Was responsible for acquiring live and playback telemetry data. The raw data can be processed instantly or saved to files for later processing. The data is transformed (decommutated and calibrated) to engineering data for the purpose of in-depth analysis.

Consulted with technical management and operations personnel in support of all preparations for Shuttle Launch (from launches 26 through 135), flight, and post flight analysis.

Wrote two generations of a merge system that automatically takes all data flows for a telemetry stream and splices intervals together to recreate the original data stream. The Silver Snoopy award was earned for this project.

Wrote software to process telemetry streams that are asynchronous windows in other telemetry streams. Although the instantiation of the objects is different, the same interface is used to access the data no matter if the source is live data, data from a file or merged set of files or from a window in any of the above streams. This is a very powerful use of object oriented techniques.

Wrote software in ProC to load and retrieve pre-flight and post-flight metadata to/from relational databases. ORACLE is used to hold the tables.

Used C# to access certain metadata databases.

Wrote software to process very high sample rate data used mostly for studying vibrations. The Fast Fourier Transform (FFT) is used to take the data from time domain to frequency domain.

Was recognized with a certificate for cost savings of $233,566 in 1991. I wrote software that streamlined and automated weather data ingest (24/7) into the Thiokol programs that determine the amount of liquid oxygen and hydrogen to load into the shuttle external tank.

Teledyne Brown Engineering (June 1979 – February 1986)

Participated in various projects including radar simulation, 6DOF flight simulations of reentry vehicle and interceptor, BMD system simulation, and SDI control center graphics displays.

Integrated combined discrete event simulation of the radar and computer defense elements and continuous simulation of the interceptor vehicle and reentry vehicle for two massive simulations.

Education

MSE Stanford University (Dec.1979)

BSEE UAH (June 1978)

Awards

MSFC Director’s Commendation 1988. Award presented by Dr. JR Thompson, then Director of MSFC.

Silver Snoopy 1990. Award presented by astronaut Dr. Story Musgrave.

Other Activities

Tax Professional – HR Block. 2007 through present.

Teaching

Tax Instructor – Income Tax Theory – HR Block – 2010 through present

Adjunct Instructor – Digital Logic – UAH – 1980 through 1983

Graduate school TA – Stanford University – Held office hours for individual student assistance. Substitute classroom lecturer. 1978/79 Academic Year

Lab Instructor – UAH – Electronics 1977 and 1978

Substitute high school Math Teacher – 1975 and 1976

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