Intermediate Nuclear Engineer Energy - Remote

We are seeking an Intermediate Nuclear Engineer Energy – Remote. This remote position is based out of our Oak Ridge, TN office.

• This role requires a senior level engineer with a minimum of 3 years of nuclear engineering experience, responsible for leading and supporting the execution, oversight, and coordination of nuclear engineering activities.
• Ensures technical deliverables, design interfaces, and nuclear safety information flow efficiently across engineering disciplines, project functions, and potentially external vendor interfaces.
• Operates within a multidisciplinary team, this position requires deep expertise in Small Modular Reactor (SMR) designs.
• Integrates specialized functions across multiple engineering disciplines, utilizing knowledge gained in the following core competencies:
• Neutron & Reactor Core Physics:
  Analyzing core behavior and reactor physics.
• Nuclear Safety & Analysis:
  Leading nuclear safety-related analyses and nuclear criticality safety assessments.
• Design & Shielding:
  Developing radiation shielding designs and managing fuel cycle operations.
• Logistics & Compliance:
  Overseeing radioactive material transportation and enforcing software quality assurance (SQA) standards.
• Software:
  Proficient with Attila4MC, MCNP, SCALE, and/or Serpent codes and modules
• Regulatory Expertise:
  Comprehensive knowledge of US and international nuclear regulatory frameworks, including NRC regulations (e.g., 10 CFR Parts 50, 70, or 71), DOE orders, and IAEA safety standards and guides.

• Nuclear Safety & Licensing Strategy.
• Lead and coordinate technical work supporting US nuclear safety licensing activities.
• Author, review, and approve technical documentation, including various nuclear safety analyses and evaluation reports.
• Support licensing initiatives by assisting with the preparation of safety basis documents.
• Participate actively in hazard analyses, process design reviews, and configuration management activities.

• Lead, execute, and approve Nuclear Criticality Safety Evaluations (NCSEs) and Nuclear Criticality Safety Analyses (NCSAs) for fuel fabrication, handling, storage, and transportation processes.
• Establish and validate criticality safety limits and engineered/administrative controls (mass, moderation, geometry, reflection, enrichment, and interaction) specifically for small modular reactor systems.
• Advance the development and maintenance of the Criticality Safety Program in strict alignment with ANSI/ANS-8 standards and applicable NRC/DOE regulations.

• Apply validated neutronics methodologies and Monte Carlo codes (e.g., MCNP, SCALE/KENO) to develop or assess margins to criticality, bias, and uncertainty.
• Lead, perform, and approve radiation shielding designs and radiation‑transport analyses for fuel fabrication, handling, storage, and transportation.
• Analyze and interpret radiation data to ensure operational safety, shielding effectiveness, and total regulatory compliance.
• Performs other duties as assigned.

• Requires a Bachelor's degree in Nuclear Engineering or a closely related discipline. Master'S or Ph.D. preferred.
• Requires 3 years of relevant experience with Bachelor's degree.
• Experience in nuclear industry preferred.

• Technical Competencies-
• Advanced Reactor & SMR Design:
  Direct experience modeling or licensing Small Modular Reactors (SMRs) or advanced fuel systems (such as HALEU or TRISO fuel cycles).
• Software Quality Assurance (SQA):
  Experience managing code verification, validation, and benchmarking under a formal ASME NQA-1 or equivalent nuclear quality assurance program.
• Criticality Safety Analysis:
  Demonstrated experience authoring…