Physicist (Nuclear Physics)

Location: US - Oak Ridge, TN

Company

hirify.global develops advanced sensing, surveillance, unmanned vehicle, radiation detection, and other technologies for defense, public safety, and critical missions.

What you will do

• Maintain and improve radionuclide identification algorithms and software, including performance in shielding and masking scenarios.
• Research and develop new radioactive nuclide identification methods.
• Develop and validate physics-based models for radiation transport, source characterization, and detector response.
• Design simulation frameworks and perform uncertainty quantification, sensitivity analysis, verification, validation, and performance testing.
• Collaborate with engineering teams to transition research concepts into deployable radiation detection products.
• Support product roadmaps, competitive technology assessments, intellectual property strategy, patent development, and technical publications.

Requirements

• PhD in theoretical physics or a related field, with a nuclear physics background.
• Experience with data analysis, data modeling, Monte Carlo simulations, and isotope identification performance evaluation.
• Software development experience in Python, C++, C, or MATLAB.
• Working knowledge of machine learning and hands-on laboratory experience with radiation detectors, sources, and data acquisition systems.
• Understanding of nuclear safeguards, nonproliferation, homeland security, or defense applications.
• Applicants must be a U.S. citizen, U.S. national, legal permanent resident, asylee, refugee, or eligible to obtain the appropriate export control license.

Nice to have

• Experience supporting DoD, DHS, DOE, NNSA, IAEA, or other nuclear security organizations.
• Experience with Geant4, GADRAS, or MCNP.
• Peer-reviewed publications, patents, or technical conference presentations.

Culture & Benefits

• Mission-driven work supporting defense, public safety, and nuclear security applications.
• Collaboration with engineering and intellectual property teams.
• Independent work with minimal supervision and participation in technical conferences and industry events.
• Travel may be required for trade shows, training events, and conferences.