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Nevada National Security Site

Manages nuclear deterrent stewardship and emergencies

Neutron Diagnosed Subcritical Experiment - Neutron Diagnosed Subcritical Experiment, Scientist 1/2

Full-TimePosted on 10/15/2026
$67.7k - $124.6k/yr
Entry, Junior
Bachelor's
North Las Vegas, NV, USA
HybridFrequent visits to the Nevada National Security Site are required; forward areas are approximately 90 miles from North Las Vegas.
Academic & Institutional ResearchPhysical Sciences
No H1B Sponsorship
US Citizenship Required

About the job

Requirements
  • A bachelor's degree in a calculus-based STEM field is required for Scientist I; Scientist II additionally requires at least 2 years of relevant experience.
  • Skill-building experience must demonstrate either deeper technical specialization or additional cross-disciplinary knowledge; graduate research experience may be recognized.
  • Scientist II candidates must demonstrate the ability to design and analyze accelerator experiments and simulations with traceability to requirements.
  • Scientist II candidates must have experience integrating models with experimental data and authoring technical reports.
  • Applicants must possess a valid driver's license.
  • Applicants must be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship and being at least 18 years old.
  • Applicants must complete a pre-placement physical examination, including a drug screen, and undergo pre-employment drug testing and background review.
  • Applicants selected for employment are subject to a federal background investigation and may be required to complete a counterintelligence evaluation, which may include a counterintelligence-scope polygraph examination.
Responsibilities
  • Design, execute, and analyze dense plasma focus experiments.
  • Develop, commission, and operate dense plasma focus diagnostics.
  • Build, validate, and apply physics models and multiphysics simulations, compare them with experimental data, and iterate designs.
  • Apply targeted machine learning to accelerate tuning, improve diagnostic insights, and support experiment planning; build data workflows and integrate with controls where appropriate; validate models against measurements.
  • Author test plans, procedures, and technical reports, and present results to program leadership and external partners.
  • Work safely with high voltage, radiation, and vacuum/pressure systems; follow Work Planning & Control and configuration management.
  • Collaborate across controls, including timing and EPICS, solid-state pulsed power, alignments, targets, and operations.
  • Scientist I: Execute well-scoped tasks under mentorship, own a subsystem or test, and grow into project ownership within 6–12 months.
  • Scientist I: Define procurement specifications and initiate purchase requests; follow established technical procedures and instructions.
  • Scientist I: Assist with compiling and summarizing scientific data; use technology solutions for experimental and operational needs.
  • Scientist I: Assist with data cleaning, baseline models, and simple optimization trials under mentorship.
  • Scientist I: Practice Work Planning & Control, participate in pre-job briefings, wear required personal protective equipment, exercise stop-work authority, and promptly report near-misses.
  • Scientist II: Own experimental or modeling packages, mentor junior staff, and contribute to hazard analysis and test-readiness reviews.
  • Scientist II: Research, compile, and analyze scientific data; participate in developing field programs; and prepare designs, strategies, reports, and proposals.
  • Scientist II: Implement and use technology solutions for experimental and operational needs.
  • Scientist II: Own a focused machine-learning use case with clear success metrics.
  • Scientist II: Lead pre-job briefings for small tests, author or update Job Hazard Analyses, verify lockout/tagout and controls, and capture lessons learned after activities.
Desired Qualifications
  • Coursework or project experience in at least one of accelerator physics, high-voltage/pulsed power, vacuum systems, radiation detection, plasma physics, or optical diagnostics.
  • Proficiency in Python for data analysis.
  • Laboratory skills, including following procedures and writing clear test notes.
  • Hands-on experience with optical plasma diagnostics and/or vacuum hardware.
  • Safety awareness for high-voltage and radiological work.
  • Experience leading a small test campaign or subsystem from planning through execution and reporting.
  • Experience with one or more of the codes LSP, CHICAGO, FLAG, COMSOL, MNCP, or Geant4.
  • Basic LabVIEW data acquisition and vacuum alignment practices.

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