Neutronics Analysis Engineer

The Neutronics Analysis Engineer is responsible for defining, developing, and executing in-core and ex-core neutronics analyses to support reactor design, performance evaluation, and safety assurance. This role involves working closely with the broader design team to solicit and capture requirements, establish the scope of neutronic evaluations, and implement appropriate models and methods. Areas of analysis include, but are not limited to, criticality, depletion, activation, and shielding. The engineer will also support verification and validation activities and contribute to licensing and regulatory interactions by providing technically sound and defensible neutronics analyses.

Responsibilities

Perform the complete range of actions involved in supporting core design and fuel cycle analysis using Monte Carlo and deterministic codes on Oklo reactors; Perform calculations and analyses in Monte Carlo based codes such as Serpent, MCNP, SCALE, and OpenMC; Perform calculations and analyses with fast reactor deterministic codes such as DIF3D, PERSENT; Support the qualification and verification of neutronic analyses, including validation against experiments and benchmarks; Be aware of and familiar with fast reactor core design and analysis work being performed internationally, as well as related benchmark calculations and experiments being performed internationally; Provide technical feedback to quick-iterating design teams; Document work using modern tools and techniques, and write well-written, thoughtful technical reports

Requirements

Bachelor's, Master's, or PhD in a technical field, such as nuclear engineering, with experience in reactor design and analysis (Master's or PhD may be preferable); Fluency with Python; Experience with modern object oriented languages, preferably C++; Proficiency with high performance computing systems; Knowledgeable about fast reactor design; Highly skilled with Monte Carlo neutronics tools such as SERPENT, MCNP, SCALE and Open-MC; Skilled with deterministic fast reactor tools, or willing and eager to learn; Comfortable in a fast-paced, highly iterative startup environment; Able to communicate technical content and results verbally

Nice to have

Experience with fast reactor design and analysis is highly recommended; Proficiency with MCNP and SERPENT is highly recommended; Proficiency with ORNL's SCALE code system (TRITON, KENO, SAMPLER, etc.) is recommended; Proficiency with Argonne's ARC codes (MC2, DIF3D, etc.) is recommended; Master's or PhD may be preferable

Benefits

Untracked paid time off; Competitive pay; Equity; 401k; Health insurance; FSA; Flexible work hours; Other benefits