Nuclear Safety Analyst

Actalent; Vienna (VA); Remote; USD 115,000 - 200,000; Full time

Benefits offered by this job

Employee-owned company

Remote work lifestyle

Mentorship and training

Opportunities to publish research

Job summary

Actalent is seeking a Nuclear Safety Analyst to support advanced reactor and fuel development projects. You will perform nuclear analyses, model thermal-hydraulic behavior, and use tools such as RELAP5-3D and TRACE to simulate reactor responses in a fully remote role.

The position emphasizes rigorous calculations, high-quality technical reporting, and collaboration with senior engineers to address NRC/DOE requirements and customer-funded initiatives.

Qualifications

• 5+ years in nuclear field, nuclear analysis, or closely related engineering work.
• Bachelor's or Master's in Nuclear Engineering or Mechanical Engineering.
• Experience with RELAP5 and TRACE for nuclear safety analysis.
• Strong analytical and quantitative problem-solving abilities.
• Strong written and verbal communication for technical reporting.

Responsibilities

• Perform nuclear safety and engineering analyses for advanced reactors and nuclear systems.
• Model thermal-hydraulic behavior under varied operating and safety conditions.
• Use RELAP5-3D, TRACE, and other tools to simulate reactor response.
• Prepare clear reports and presentations communicating methodologies and results.
• Collaborate with engineers to refine models and interpret results.
• Support NRC/DOE-related requirements and customer-funded projects.

Skills

Nuclear analysis

Relap5-3D

Trace

Thermal-hydraulics

Technical writing

Independent work

Education

Nuclear/Mechanical Eng Degree

Tools

RELAP5-3D

TRACE

MCNP

VIPRE01

FAST

Job description

Job Title: Nuclear Safety Analyst

Job Description

The Nuclear Safety Analyst role focuses on nuclear analysis and modeling rather than traditional plant mechanical design. You will work alongside experienced nuclear safety specialists to support advanced reactor and fuel development projects, performing a mix of research and customer-focused work. Assignments range from fundamental engineering calculations to detailed reactor analyses using specialized nuclear safety-analysis software. This position offers the opportunity to work on advanced nuclear technologies, contribute to real reactor safety analysis, and develop expertise with industry-leading analysis tools in a flexible, fully remote setting.

Job Description

The Nuclear Safety Analyst role focuses on nuclear analysis and modeling rather than traditional plant mechanical design. You will work alongside experienced nuclear safety specialists to support advanced reactor and fuel development projects, performing a mix of research and customer-focused work. Assignments range from fundamental engineering calculations to detailed reactor analyses using specialized nuclear safety-analysis software. This position offers the opportunity to work on advanced nuclear technologies, contribute to real reactor safety analysis, and develop expertise with industry-leading analysis tools in a flexible, fully remote setting.

Responsibilities

• Perform nuclear safety and engineering analyses for advanced reactors and nuclear systems.
• Model reactor and system thermal-hydraulic behavior under a variety of operating and safety conditions.
• Analyze heat transfer and fluid behavior in nuclear systems, including core and safety-system performance.
• Use specialized engineering and nuclear-analysis software such as RELAP5-3D and TRACE to simulate reactor response.
• Support analysis of reactor and core behavior under normal operation, transients, and postulated accident scenarios.
• Perform calculations that support nuclear reactor safety, performance, and design decisions.
• Verify calculations rigorously and assess whether results are physically reasonable and consistent with engineering principles.
• Document methodologies, assumptions, input models, calculations, and conclusions in a clear and traceable manner.
• Write technical reports and white papers that communicate analysis approaches, results, and implications.
• Develop presentations and communicate technical findings to internal teams, customers, and external stakeholders as appropriate.
• Collaborate closely with lead technical experts and engineers to refine models, interpret results, and solve complex technical problems.
• Support advanced reactor and fuel customers as they work through U.S. NRC and DOE-related requirements and expectations.
• Contribute to both research and development initiatives and customer-funded projects, balancing innovation with practical deliverables.
• Engage in ongoing learning to deepen expertise in thermal-hydraulics, nuclear safety analysis, and specialized industry tools.

Essential Skills

• 05 years of experience in the nuclear field, nuclear analysis, or closely related engineering work.
• Bachelors or Masters degree in Nuclear Engineering or Mechanical Engineering.
• Experience or knowledge of RELAP5 and TRACE for nuclear thermal-hydraulic and safety analysis.
• Solid experience in one or more of the following: fluid dynamics, heat transfer, nuclear physics, or structural mechanics.
• Demonstrated ability to perform complex engineering problem solving and quantitative analysis.
• Strong technical writing skills with the ability to produce clear, well-structured technical reports and documentation.
• Effective verbal communication skills for presenting technical findings and collaborating with engineering teams.
• Ability to work independently on analysis tasks while also contributing effectively within multidisciplinary teams.
• Ability to adapt to changing technical problems and evolving project requirements.
• Strong verification mindset with a focus on checking, validating, and questioning analysis results.
• Proficiency with Microsoft Word for preparing reports and technical documentation.
• U.S. citizenship.

Additional Skills & Qualifications

• Interest in developing deep expertise with specialized nuclear analysis tools such as RELAP5-3D, TRACE, MCNP, VIPRE01, and FAST.
• Interest in advanced reactor and fuel technologies and their associated safety and licensing challenges.
• Motivation to participate in research and development activities that advance state-of-the-art nuclear safety analysis.
• Interest in publishing research findings and presenting at conferences or workshops.
• Desire to build strong industry relationships and professional networks in the nuclear sector.
• Comfort working in a technical, calculation-heavy environment with a strong emphasis on analytical rigor.

Work Environment

This role offers a 100% remote work arrangement, providing significant flexibility in where you perform your work. Much of the team works remotely, and you will collaborate virtually with experienced engineering staff on a mix of independent analysis and team-based projects. Office space is available in Idaho Falls, Idaho, and Bloomsburg, Pennsylvania for individuals who prefer to work from an office environment. The position involves a combination of research and development activities and customer-funded work, with a strong focus on detailed technical calculations, modeling, and simulation. The environment emphasizes the use of specialized nuclear analysis tools such as RELAP5-3D, TRACE, MCNP, VIPRE01, and FAST, along with standard productivity software like Microsoft Word. Hiring is limited to certain U.S. states for management and tax reasons, and some states are not eligible. The work culture supports professional development, including opportunities to advance state-of-the-art applications, publish research, present at conferences and workshops, and build industry relationships. No specific dress code is imposed for remote work, and no active security clearance is required.

Job Type & Location

This is a Permanent position based out of Vienna, VA.

Pay And Benefits

The pay range for this position is $115000.00 - $200000.00/yr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

• Employee-owned company Flexible work environment, including remote work for employees in eligible states
• Opportunities to work on advanced nuclear reactor and fuel programs
• Mentorship and training from experienced nuclear safety experts
• Opportunity to develop specialized skills in RELAP5-3D, TRACE, MCNP, thermal-hydraulics, reactor physics, and safety analysis
• Opportunities to publish research and present at conferences/workshops
• Exposure to both R&D and customer-facing nuclear programs
• Strong long-term career-development focus, with Jason specifically describing a strategy of training and retaining engineers

Job Type & Location

This is a Permanent position based out of Vienna, VA.

Application Deadline

This position is anticipated to close on Nov 2, 2026.

Workplace Type

This is a fully remote position.

About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email [e-mail] for other accommodation options.

San Francisco Fair Chance Ordinance

Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI)

We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.