Senior Reactor Physics Engineer for Advanced Nuclear Systems

NANO Nuclear Energy Inc. (NASDAQ: NNE); Oak Brook (IL); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive compensation

Benefits package

Mentorship and professional growth

Job summary

NANO Nuclear Energy is developing next‑generation microreactor systems and advancing HTGR technologies for critical infrastructure and data centers. We seek a Nuclear Engineer, Reactor Physics to support core design, licensing, and regulatory compliance.

You will perform reactor physics analyses, develop computational tools, and collaborate with cross‑functional teams while mentoring junior staff. Experience in Monte Carlo methods and Python is valued.

Qualifications

• Bachelor's degree in Nuclear Engineering or related field is required.
• 7+ years (or MSc with 5+ years) of relevant experience.
• Strong Monte Carlo and reactor physics knowledge; shielding and safety experience desired.
• Programming skills in any language; Python is commonly used here.

Responsibilities

• Perform neutron/gamma transport calculations to determine activation/dose, heating, and shielding needs.
• Design radiation shielding throughout the reactor system.
• Perform criticality safety calculations.
• Develop/validate tools for reactor multiphysics analysis.
• Collaborate with engineering, safety, licensing teams, and operations.

Skills

Monte Carlo methods

Reactor physics

Reactor design

Radiation shielding

Criticality safety

Python

Problem-solving

Collaboration

Nuclear software verification

Education

Bachelor's degree in Nuclear Engineering or related field

Tools

Python

Job description

NANO Nuclear Energy is developing next‑generation microreactor systems and advancing HTGR technologies for critical infrastructure and data centers. We seek a Nuclear Engineer, Reactor Physics to support core design, licensing, and regulatory compliance.

You will perform reactor physics analyses, develop computational tools, and collaborate with cross‑functional teams while mentoring junior staff. Experience in Monte Carlo methods and Python is valued.