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Nuclear Shielding and Criticality Engineer
Posted: 05/12/2025
Employment Type:
Contract
Job Number: 30483
Job Location:
Industry: SVCS - Services
Job Description
Position Title: Nuclear Shielding and Criticality Engineer
Position Description: Protingent Staffing has an exciting *REMOTE* contract Nuclear Shielding and Criticality Engineer opportunity.
Job Responsibilities:
Job Qualifications:
Job Details:
Benefits Package: Protingent offers competitive salaries, insurance plan options (HDHP plan or POS plan), education/certification reimbursement, pre-tax commuter benefits, Paid Time Off (PTO), and an administered 401k plan.
About Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies. We’re passionate about making a positive impact by connecting exceptional talent with meaningful opportunities and helping our clients build the future.
Position Description: Protingent Staffing has an exciting *REMOTE* contract Nuclear Shielding and Criticality Engineer opportunity.
Job Responsibilities:
- Perform radiation shielding design and analysis for advanced nuclear reactors, including calculating dose rates, activation rates, neutron fluence rates, and energy deposition rates.
- Develop radiation sources based on material activation analysis for non-fuel in-vessel components.
- Perform criticality calculations and develop upper subcritical limits (USLs)
- Establish and maintain formal documentation of analysis results.
- Work at Company is dynamic and evolutionary. As such, new responsibilities often arise, and you should be capable of and excited about learning and applying specialized skills.
Job Qualifications:
- B.S. degree in Nuclear Engineering with 5-20 years’ experience
- M.S. degree in Nuclear Engineering with 3-15 years’ experience
- Ph.D. degree in Nuclear Engineering with 2-10 years’ experience
- Strong MCNP skills and experience with performing radiation shielding calculations for both gammas and neutrons are required. Experience in criticality safety desirable.
- Candidate should be familiar with variance reduction using MCNP, and features such as surface source read/write, mesh tallies, and weight windows. Familiarity with ADVANTG for weight windows generation is a plus.
- Excellent written and verbal and communication skills required.
- Ability and professionalism to work within published regulatory guidelines required.
- Experience working under NQA-1 quality program desired.
- Strong computational expertise desired.
- Experience with Attila /Attila4MC and computed aided drafting (e.g., SolidWorks, SpaceClaim/ANSYS, Cubit) is a plus.
- Fast reactor experience a plus.
- Strong programming skills in any language is a plus, and Python is commonly used in this position.
- Knowledgeable or highly motivated to quickly learn basic nuclear reactor design concepts to meaningfully support engineering team.
- Actual position starting level will be determined based on assessment of qualifications.
Job Details:
- Job Type: Contract
- Pay Rate Range: $63-$130/hr.
- Location: Remote or Onsite
- Export control regulations require candidates to be a U.S. Citizen, U.S. Legal Permanent Resident, or of a protected person status
Benefits Package: Protingent offers competitive salaries, insurance plan options (HDHP plan or POS plan), education/certification reimbursement, pre-tax commuter benefits, Paid Time Off (PTO), and an administered 401k plan.
About Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies. We’re passionate about making a positive impact by connecting exceptional talent with meaningful opportunities and helping our clients build the future.
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