Demo

Nuclear Safety Analyst – Junior

Information Systems Laboratories
Idaho, ID Full Time
POSTED ON 8/23/2026
AVAILABLE BEFORE 12/20/2026

Information Systems Laboratories, Inc. (ISL) is seeking a junior analyst for a full-time position in the Nuclear Safety Analysis team.

ISL is a high-tech, employee-owned technology development company. ISL’s Energy, Space, and Risk Management Division provides comprehensive support to the nuclear and space industries, including nuclear safety analysis, complex modeling and simulation, nuclear software development throughout the software lifecycle, regulatory framework and procedures development, waste management tracking, risk management, and cybersecurity.

Job Description

The analyst will work alongside safety analysis experts performing a mix of research and development and customer contract work. Customers are generally advanced reactor and fuel vendors requiring ISL’s unique safety analysis expertise to meet licensing requirements of the U.S. NRC or DOE.

ISL has a culture of building from fundamentals to solve complicated engineering problems in the nuclear industry, including modeling and simulation of system and core thermal-hydraulics, fuel performance, radiological consequences, and related areas.

Work tasks range from basic calculations using general office software to detailed analyses using approved safety analysis codes such as RELAP5-3D, MCNP, VIPRE01, FAST, and similar tools.

The position also includes writing technical reports and white papers, creating presentations, and other related tasks needed to communicate ideas, problems, and solutions.

The position offers a unique opportunity to learn from the brightest minds in the field, advance state-of-the-art applications, publish research, present at conferences and workshops, and develop industry contacts and relationships.

Requirements

  • A B.S. or M.S. degree in Nuclear or Mechanical Engineering.
  • 0–5 years of experience in the nuclear industry.
  • A background in fluid dynamics, heat transfer, nuclear physics, and/or structural mechanics.
  • Good technical writing and communication skills.
  • A self-starter who:
  • Works well within a team or independently.
  • Has demonstrated ability to solve complex problems.
  • Can adapt to changing situations.
  • Has the drive to verify results and know they make sense.
  • Experience with Microsoft Office, including Word, Excel, PowerPoint, and SharePoint.

Desired Skills

  • In-depth experience with thermal hydraulics, including fluids and heat transfer.
  • An understanding of the fundamentals of nuclear physics.
  • Familiarity with assessing criticality and radiological consequences.
  • Experience with:
  • General calculation software such as Mathcad and/or Octave.
  • System analysis codes such as RELAP5-3D and/or TRACE.
  • Nuclear physics codes such as MCNP, SCALE, PARCS, etc.
  • CFD and Multiphysics codes.
  • Solid modeling or CAD.
  • Basic scripting or light programming skills using Python, Java, etc.

Security Clearance

This position requires eligibility to obtain and maintain a U.S. Government security clearance.

Equal Employment Opportunity

Information Systems Laboratories, Inc. (ISL) is an Equal Opportunity Employer. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.

ISL provides reasonable accommodation to qualified individuals with disabilities in accordance with applicable law.

How to Apply

To apply, please send your resume to Human Resources at hr@islinc.com

Pay: $80,000.00 - $120,000.00 per year

Benefits:

  • 401(k)
  • Dental insurance
  • Employee assistance program
  • Flexible spending account
  • Health insurance
  • Health savings account
  • Life insurance
  • Paid time off
  • Relocation assistance
  • Retirement plan
  • Tuition reimbursement
  • Vision insurance

Education:

  • Bachelor's (Required)

Work Location: In person

Salary : $80,000 - $120,000

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