Senior Nuclear Engineer — Remote/Hybrid Reactor Design

Applied Atomics LLC; Northern (KY); Hybrid; USD 148,000 - 195,000; Full time

Benefits offered by this job

Substantial incentive stock plan

Medical/Vision/Dental

Flexible PTO

Hybrid and remote work options

Job summary

Applied Atomics LLC seeks a Nuclear Engineer to own the nuclear architecture, drive reactor core and fuel design, and interface with reactor-licensing partners. You will lead neutronics, shielding, and safety analyses across concept-to-deployment, and collaborate with cross-functional teams in a fast-paced hardware setting.

You will build models, validate analyses, and contribute to licensing documentation while shaping a growing nuclear engineering group with broad responsibilities.

Qualifications

• Bachelor’s degree in Nuclear Engineering or related field is required.
• 4+ years of nuclear engineering experience (or 2+ years with MS).
• Experience with radiation transport and reactor physics modeling tools (OpenMC, MCNP, Serpent, SCALE).
• Experience with reactor design, core physics, criticality, and shielding.
• Basic understanding of thermal-hydraulics and coupled neutronics-thermal models.
• Familiarity with CAD tools (NX, SolidWorks, Creo).
• Ability to operate across multiple cross-functional teams.
• Strong written and oral communication skills; able to explain complex topics simply.
• Self-starter with ownership mentality; drive from concept to completion.

Responsibilities

• Own reactor physics, neutronics, shielding, and nuclear design activities from concept to deployment.
• Develop and refine core design, reactivity coefficients, kinetics parameters, feedback mechanisms, and neutron energy spectra.
• Perform radiation transport, shielding, and criticality safety analyses.
• Conduct transient and accident-scenario evaluations to support design decisions and safety basis development.
• Perform dose consequence and source-term calculations for normal operations and beyond design basis events.
• Build and maintain reactor physics, shielding, and fuel performance models.
• Lead Verification & Validation (V&V) efforts for nuclear analysis tools and workflows.
• Collaborate with licensed reactor technology providers and licensing teams on safety basis and documentation.
• Lead a multidisciplinary engineering organization; build processes and a nuclear analysis team.

Skills

Strong communication

Cross-functional collaboration

Self-starter

Ownership mentality

Able to drive tasks end-to-end

Education

Bachelor’s degree in Nuclear Engineering or related field

Tools

OpenMC

MCNP

Serpent

SCALE

CAD tools (NX/SolidWorks/Creo)

Job description

Applied Atomics LLC seeks a Nuclear Engineer to own the nuclear architecture, drive reactor core and fuel design, and interface with reactor-licensing partners. You will lead neutronics, shielding, and safety analyses across concept-to-deployment, and collaborate with cross-functional teams in a fast-paced hardware setting.

You will build models, validate analyses, and contribute to licensing documentation while shaping a growing nuclear engineering group with broad responsibilities.