Join Fifth Gait Technologies and become an integral part of our innovative industry-leading company. We specialize in testing microelectronics and electro-optics in nuclear and space radiation environments in support of Defense programs. We are looking for a Physicist to join our team in support of infrared focal plane testing.

WHO WE ARE: Fifth Gait Technologies, Inc. is a minority, woman-owned small business. With our team of subject matter experts, we are an industry leader in all aspects of space and nuclear radiation survivability for ground and space-based Defense and commercial assets. From modeling and simulation of radiation environments and effects to the design, test, and evaluation of sensors, electronics, and optical materials, we provide turnkey options to the survivability community.


  • Bachelor’s degree in Physics, advanced degree is a plus
  • Minimum of 2 years of experience
  • Required: the ability to obtain and maintain a DoD Security Clearance


  • Support radiation safety officer in tracking staff dosimetry
  • Track calibration of dosimetry equipment
  • Perform dosimetry measurements using thermoluminescent dosimeters (TLDs)
  • Perform gamma spectrometry on activation foils for neutron dosimetry
  • Perform radiation transport analysis

Desired Experience/Skills:

  • Experience with one or more radiation transport tools such as MCNP, Geant4, SRIM/TRIM, HZETRN
  • All aspects of competent analysis and test, including the design, fabrication, execution, and analysis of radiation tests
  • Radiation mitigation techniques
  • Strong understanding of nuclear physics
  • Knowledge of the physics associated with radiation effects in semiconductor devices
  • Knowledge of optical physics a plus

LOCATION: Colorado Springs, CO

OUR BENEFITS: Fifth Gait offers competitive salaries and outstanding benefits including company paid medical, dental, and vision coverage, annual bonuses, and a retirement plan including company matching.

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