Nuclear Shielding and Criticality Engineer

System One is seeking to contract with a highly capable and motivated nuclear shielding and criticality engineer. The role involves performing MCNP calculations for shielding, energy deposition, neutron fluence, activation, and criticality, requiring strong written and oral communication skills.

Responsibilities:

• Tasks are generally MCNP calculations formally documented in calculation packages

Requirements:

• Strong MCNP skills are required
• Self-motivated and capable of working effectively in a remote environment
• Strong written and oral communication skills are essential
• 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
• Ability and professionalism to work within published regulatory guidelines required
• Experience working in an NQA-1 environment with rigorous quality standards is desirable
• 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
• 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