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Mission Support and Test Services, LLC

Scientist II

NV · On-site

$65K - $86K/yr

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA). Our MISSION is to help ensure ...

Mission Support and Test Services, LLC

Technologist

NV · On-site

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA). Our MISSION is to help ensure ...

Mission Support and Test Services, LLC

Scientist I

NV · On-site

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA). Our MISSION is to help ensure ...

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How much do nnss jobs pay per year?

As of Jul 7, 2026, the average yearly pay for nnss in the United States is $124,724.00, according to ZipRecruiter salary data. Most workers in this role earn between $107,500.00 and $140,000.00 per year, depending on experience, location, and employer.

What is the difference between Nnss vs Emergency Medical Technician (EMT)?

AspectNnssEmergency Medical Technician (EMT)
Required CredentialsCertification or license specific to Nnss roles, often including specialized trainingState-certified EMT license, CPR certification, and basic life support training
Work EnvironmentHealthcare facilities, clinics, or specialized medical settingsAmbulances, emergency scenes, hospitals
Industry UsageHealthcare, medical servicesPre-hospital emergency care, ambulance services
Common Search/ComparisonNnss vs EMTEmergency Medical Technician (EMT)

While Nnss and EMT roles both involve healthcare and emergency response, Nnss typically refers to specialized healthcare support roles within medical facilities, whereas EMTs focus on providing pre-hospital emergency care. Both require certification, but EMTs are specifically trained for emergency situations outside of healthcare facilities.

What are common challenges faced by professionals working at the Nevada National Security Site (NNSS), and how are they addressed?

Professionals at the NNSS often work in highly regulated environments where safety, security, and confidentiality are paramount. Common challenges include adhering to strict safety protocols, managing sensitive information, and working on complex, multidisciplinary projects with diverse teams. These challenges are addressed through comprehensive training, strong teamwork, and ongoing professional development. Employees also have access to robust support systems and clear communication channels to ensure compliance and collaboration.

What is an NNSS job?

An NNSS job typically refers to a position at the Nevada National Security Site (NNSS), a U.S. Department of Energy facility focused on nuclear security, defense research, and environmental management. Jobs at NNSS span various fields, including engineering, security, emergency response, and scientific research. Employees contribute to national security initiatives, nuclear stockpile stewardship, and other critical missions. Many positions require security clearances and specialized expertise in fields like radiation safety, explosives testing, or cybersecurity.

What are the key skills and qualifications needed to thrive as an NNSS (National Nuclear Security Site) professional, and why are they important?

To thrive as an NNSS professional, you need a strong background in nuclear science, engineering, or a related technical field, often supported by a relevant degree and security clearance. Familiarity with radiation detection equipment, data analysis software, and compliance with DOE safety protocols is essential. Strong problem-solving abilities, attention to detail, and effective teamwork are vital soft skills. These competencies ensure safe, secure, and compliant operations in a highly regulated and sensitive environment.

What are NNSS?

NNSS stands for Nevada National Security Site, a U.S. government facility located in Nevada that is primarily used for nuclear testing, research, and development. The site supports national security programs, including nuclear stockpile stewardship, emergency response training, and environmental management. Employees at NNSS may work in areas such as engineering, science, security, and environmental monitoring. The facility is managed by the U.S. Department of Energy's National Nuclear Security Administration (NNSA) and plays a key role in ensuring the safety and reliability of the nation's nuclear arsenal.
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Nnss jobs near you
Infographic showing various Nnss job openings in the United States as of July 2026, with employment types broken down into 99% Full Time, and 1% Part Time. Highlights an 96% Physical, 3% Hybrid, and 1% Remote job distribution, with an average salary of $124,724 per year, or $60 per hour.
REMOTE w/Travel Sr. Fire Protection Engineer/Consultant

REMOTE w/Travel Sr. Fire Protection Engineer/Consultant

EGS

North Las Vegas, NV • On-site, Remote

Contractor

Posted 27 days ago

Job description

We are seeking a REMOTE Sr. Fire Protection Engineer for our DOE client in North Las Vegas.  The Sr. Fire Protection Engineer will support the Engineering Division providing fire protection programmatic implementation support at various NNSS and NLV facilities. Deliverables include fire protection assessments, fire hazards analysis, fire risk assessments, preparing equivalencies & exemptions, design reviews, procedure reviews, life safety code analysis, system walk-downs, and other duties as assigned. 
 
Must have experience with DOE facilities and fire protection in nuclear facilities. Must have good analytical capability to resolve complex fire protection issues with code interpretation, applicability, and implementation. Experience with Notifier voice fire alarm and detection, hybrid fire extinguishing systems, fire hazards analysis preparation per DOE-STD-1066, and experience in fire protection with underground facilities preferred.
 
Location: North Las Vegas, NV preferred, open to remote with once-a-month travel; Periodic trips to the Nevada National Security Site (NNSS) as needed
 
Must be US Citizen.

Responsibilities:
  • Conduct construction document reviews as required.
  • Generation of Facility Hazard Analysis (FHA) documents, modifications to existing FHA documents, facility FP assessments, exemption and equivalency requests, detailed FP design, and calculation of various FP systems including pre-action, wet pipe and dry pipe systems, and review of FP packages and contractor submittals.
  • Familiarity with MicroStation computer aided drafting applications is required.
 
Education and Experience:
  • Bachelor of Science in Fire Protection Engineering or similar accredited engineering B.S., minimum 10 years of practical related engineering practice, 8 years of which will have been in charge of diverse fire protection engineering design/construction work.  
  • National Institute for Certification in Engineering Technologies (NICET) Level III (Water Based Layout) Certification acceptable in lieu of B.S. in Engineering.

 
Education:Bachelor (BA, BS...)Employment Type: CONTRACTOR

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