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Nuclear Shielding and Criticality Engineer

Bellevue, WA 98008

Posted: 02/03/2025 Employment Type: Contract Department: Core Technologies - Contract Job Number: 30067 Industry: SVCS - Services

Job Description

Position Title: Nuclear Shielding and Criticality Engineer

Position Description: Protingent Staffing has an exciting 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.

Job Qualifications:
  • B.S. degree in Nuclear Engineering or equivalent experience; Advanced degree and 5+ years of relevant experience with nuclear analysis preferred.  For less than 5 years’ experience, a college transcript is required.
  • 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
  • Location: Bellevue, WA.
  • Pay Rate Range: $72-$90/h
  • 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 a niche provider of top Engineering and IT talent to Software, Electronics, Medical Device, Telecom, and Aerospace companies nationwide. Protingent exists to make a positive impact and contribution to the lives of others as well as our community by providing relevant, rewarding, and exciting work opportunities for our candidates.

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About Bellevue, WA

Discover exciting job opportunities in the vibrant Bellevue, Washington area today! Nestled in the heart of the Pacific Northwest, Bellevue offers a perfect blend of urban sophistication and natural beauty. From the stunning views of Lake Washington and the Cascade Mountains to the bustling downtown area with its upscale shops and delightful eateries, Bellevue has something for everyone. Explore the Bellevue Arts Museum, catch a show at the Meydenbauer Center, or cheer on the Seattle Seahawks at the nearby Lumen Field. With top-rated schools, abundant outdoor recreational activities at Bellevue Downtown Park, and a thriving tech industry, Bellevue presents endless possibilities for professional growth and success. Begin your career journey in this dynamic and charming city - browse our job listings now and unlock your potential in Bellevue, Washington!