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Nevada National Security Site

Manages nuclear deterrent stewardship and emergencies

Principal Scientist

Full-TimeUpdated on 10/23/2026
$121.9k - $185.8k/yr
Expert
Bachelor's, PhD
Las Vegas, NV, USA
In PersonPrimary work location: Remote Sensing Laboratory at Nellis Air Force Base, Las Vegas. Requires worldwide deployment/travel, sometimes on short notice.
Academic & Institutional ResearchPhysical Sciences
No H1B Sponsorship
US Citizenship Required

About the job

Requirements
  • A bachelor's degree in Health Physics, Nuclear Engineering, or a similar calculus-based Science, Technology, Engineering & Mathematics field, plus at least 9 years of relevant experience. Graduate research experience may be recognized.
  • Skill-building experience must demonstrate either deeper technical specialization or additional cross-disciplinary knowledge.
  • Strong written and oral communication skills and demonstrated ability to work on complex applied projects in a group atmosphere.
  • Ability to interface effectively with technical personnel from other MSTS organizations, outside organizations, and government agencies.
  • Willingness and ability to work during non-standard hours, take on-call duty, and deploy worldwide on short notice.
  • Ability to perform critical job functions under high-stress conditions such as real-world deployments.
  • Ability to meet company requirements for worldwide travel, including medical physicals and immunizations.
  • Ability to work independently or in a team environment on a wide variety of tasks.
  • Working knowledge of Microsoft Office 365, Word, Excel, Adobe Acrobat, and Outlook.
  • Must be fitted for and qualify to use various respiratory protection and personal protective equipment.
  • Ability to lift 50 pounds.
  • Ability to participate in National Response Asset Deployment activities, including flying onboard government aircraft for missions and deployments.
  • Must submit to immunizations for worldwide travel.
  • Must obtain and maintain Sensitive Compartmented Information (SCI) access.
  • Must obtain and maintain a Department of Energy Q-level security clearance, which requires U.S. citizenship and being at least 18 years old.
  • Must be able to pass a pre-placement physical examination, including a drug screen, and submit to required pre-employment drug testing and background review. Selected applicants are subject to a federal background investigation and subsequent reinvestigations; a counterintelligence evaluation, potentially including a counterintelligence-scope polygraph, may also be required.
  • Must possess a valid driver's license.
Responsibilities
  • Collect and analyze radiological data from a variety of platforms, and advise public safety officials on the consequences of a radiological incident.
  • Use specialized tools and applications to calculate potential impacts to the public, workers, and the environment in support of radiological emergencies.
  • Attain and maintain qualification as an emergency responder.
  • Serve rotating on-call duty for approximately one-third of the year, typically in one-week increments.
  • Deploy worldwide for exercises and responses, with as little as two hours' notice when on call.
  • Maintain training and keep job-specific qualifications current; attend onsite and off-site training as necessary to maintain competency.
  • Assist in developing company and emergency-response guidelines, manuals, and procedures.
  • Develop and implement corrective actions and lessons learned.
  • Develop training materials and deliver training to emergency responders across the Department of Energy community.
  • Assist with preparing technical reports and recommendations.
  • Organize, evaluate, and interpret data by comparison against standards and guidelines.
  • Plan and conduct work requiring judgment in evaluating, selecting, applying, adapting, and modifying standard techniques, guidelines, procedures, and criteria.
  • Present analysis results to technical or non-technical audiences.
  • Conduct testing and evaluation of radiation-detection equipment and acquisition and analysis software.
  • Provide expertise, feedback, and input into developing improved radiation-detection systems and analysis algorithms.
  • Provide scientific guidance on projects involving interdisciplinary teams of engineers, software developers, scientists, and technicians.
  • Operate radiation-detection equipment in field operations.
  • Maintain subject-matter expertise and proficiency on detection equipment to instruct during courses or provide troubleshooting during operations or events.
  • Develop and design scientific and technical content for training exercises.
  • Perform other duties as assigned by the supervisor or manager.
Desired Qualifications
  • Experience with one or more of the following: gamma-ray spectroscopy, operational health physics, and customer service and/or training development and delivery.
  • Additional enhancing experience includes radiation detection, algorithm development, transport codes, programming, prototype design and testing, and training design or delivery.
  • A Ph.D. is preferred.

About the company

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Nevada National Security Site

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It maintains the U.S. nuclear deterrent, provides nuclear and radiological emergency response training, and supports nonproliferation and arms control efforts. It conducts national-level experiments and collaborates with national laboratories and federal agencies to support national security work. It uses facilities, labs, simulations, and field exercises to develop detection, response, and stewardship capabilities. Its goal is to strengthen national security while ensuring environmental stewardship and collaboration with government partners.

Company Size

1,001-5,000

Company Stage

N/A

Total Funding

N/A

Headquarters

North Las Vegas, Nevada

Founded

N/A

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Simplify's Take

What believers are saying

  • DOE updated NNSS contract modifications through May 2026, showing continued funding flow.
  • September 2026 solicitations for paving, cooling, and modular construction signal active site expansion.
  • Nye County sheriff support is headed for renewal after December 31, 2026.

What critics are saying

  • August 2026 gun entry charges exposed North Las Vegas perimeter vulnerabilities.
  • DOE rescinded obsolete traffic rules on August 12, 2026, signaling procedural cleanup.
  • Contract operations depend on annual funding mods, increasing DOE renewal and performance risk.

What makes Nevada National Security Site unique

  • DOE's only active nuclear test site supports stockpile stewardship subcritical experiments.
  • Mission Support and Test Services runs a 2027 contract with $11.3 billion value.
  • NNSS combines weapons security, environmental management, and defense technology under one federal mission.

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Benefits

  • Remote Work Options