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Nuclear Shielding and Criticality Engineer
Remote / Online - Candidates ideally in
Bellevue, King County, Washington, 98008, USA
Listed on 2026-06-01
Bellevue, King County, Washington, 98008, USA
Listing for:
Protingent
Remote/Work from Home
position Listed on 2026-06-01
Job specializations:
-
Engineering
Systems Engineer, Mechanical Engineer
Job Description & How to Apply Below
Position Title: Nuclear Shielding and Criticality Engineer
Position Description: Protingent Staffing has an exciting contract Nuclear Shielding and Criticality Engineer opportunity.
Job Responsibilities:
- Tasks are generally MCNP calculations formally documented in calculation packages.
- B.S. degree in Nuclear Engineering with 10+ years' experience
- M.S. degree in Nuclear Engineering with 6+ years' experience
- Ph.D. degree in Nuclear Engineering with 3+ 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., Solid Works, Space Claim/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.
- Travel Required:
No travel required, 2 trips to home office/year recommended.
- Job Type: Contract
- Pay Rate Range: $69-$115/hr (Pay rates are approved based on candidate location, education and experience)
- Location:
Bellevue, WA or 100% Remote - Export control regulations require candidates to be a U.S. Citizen, U.S. Legal Permanent Resident, or of a protected person status
#Terra Pro
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.
Meet Your Recruiter
Haley Marsh
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