Principal Safeguards & Security Specialist - Technical Security Analyst

Location: North Las Vegas, NV, United States

Mission Support & Test Services, LLC (MSTS) / Nevada National Security Sites (NNSS) is seeking a Principal Safeguards & Security Specialist (Technical Security Analyst) to serve as a high-level technical authority for complex security risk, blast, and vulnerability analyses. Reporting directly to the Technical Analysis Section Supervisor, this role provides rigorous technical and quantitative analytical support to the Nevada Field Office (NFO) and National Nuclear Security Administration (NNSA). The incumbent will leverage advanced computational modeling, physics-based blast simulations, and probabilistic risk assessment methodologies to evaluate, design, and validate physical protection systems for complex nuclear, high-hazard, and critical infrastructure assets.

About Us

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Sites (NNSS) for the U.S. National Nuclear Security Administration (NNSA), a semi-autonomous agency within the U.S. Department of Energy (DOE). The NNSS is an enterprise of special-purpose, multi-mission, high-hazard experimentation facilities delivering technical and service solutions in partnership with the National Laboratories. Our collaborative work supports the government’s most important national security missions. (See NNSS.gov for our unique capabilities.) Our 3,000+ professional, craft, and support employees are called upon to innovate, collaborate, and deliver on some of the more difficult nuclear security challenges facing the world today. 

• MSTS offers our full-time employees highly competitive salaries and benefits packages including medical, dental, and vision; both a pension and a 401k; paid time off and 96 hours of paid holidays; relocation (if located more than 75 miles from work location); tuition assistance and reimbursement; and more. 

• MSTS is a limited liability company consisting of Honeywell Aerospace, Amentum, and HII Nuclear Inc.