Senior Nuclear Engineer / Health Physicist

About the Role

Theragenics is seeking a Senior Nuclear Engineer / Health Physicist to serve as the primary radiation engineering expert supporting the development of next-generation technologies used in life-saving cancer treatments. In this impactful role, you'll apply advanced nuclear engineering principles to facility design, radiation modeling, regulatory support, and manufacturing readiness, helping to bring innovative healthcare solutions to patients worldwide.

Role Summary

As a Senior Nuclear Engineer / Health Physicist, you'll play a pivotal role in supporting the design, development, commissioning, and operation of innovative radiopharmaceutical manufacturing technologies. Working closely with cross-functional teams across Engineering, Manufacturing, Quality, Validation, Process Development, and Regulatory Affairs, you'll apply advanced radiation engineering expertise to ensure safe, compliant, and efficient operations.

Key Responsibilities

• Perform radiation shielding analyses, dose assessments, and source term calculations.
• Develop, validate, and interpret Monte Carlo radiation transport models using MCNP or equivalent software.
• Support facility, hot cell, process equipment, and radiological system design activities.
• Provide radiation engineering expertise during commissioning, qualification, and manufacturing readiness initiatives.
• Prepare engineering calculations, technical reports, design specifications, and engineering standards.
• Evaluate and optimize radiation detection systems, including HPGe spectroscopy applications.
• Participate in design reviews, hazard analyses, and project risk assessments.
• Support regulatory submissions and provide technical expertise during inspections and audits.
• Collaborate with multidisciplinary teams to solve complex technical and operational challenges.
• Drive continuous improvement initiatives related to radiation safety, facility performance, and operational effectiveness.

Required Qualifications

• M.S. or Ph.D. in Nuclear Engineering, Health Physics, Nuclear Physics, Medical Physics, or a related discipline.
• 5+ years of experience in radiation engineering, shielding design, health physics, or nuclear engineering environments.
• Demonstrated proficiency with MCNP or equivalent Monte Carlo radiation transport software, including model development and results interpretation.
• Experience performing shielding analyses, source term development, and radiation dose calculations.
• Strong analytical and problem-solving skills.
• Excellent technical writing, documentation, and communication abilities.
• Ability to effectively collaborate across multidisciplinary teams.

Preferred Qualifications

• Experience in radiopharmaceutical manufacturing or isotope production environments.
• Knowledge of cyclotron facility operations and radiation systems.
• Experience utilizing HPGe gamma spectroscopy.
• Familiarity with cGMP-regulated manufacturing environments.
• Experience supporting NRC or Agreement State licensed facilities.
• Experience with radiation transport and shielding software such as MicroShield, SCALE, PHITS, FLUKA, Geant4, MAVRIC, or similar tools.

Why Join Us?

• Career Growth — Expand your expertise while working on highly specialized nuclear engineering projects within a growing organization focused on innovation and advancement.
• Innovative Projects — Contribute to the development of next-generation radiopharmaceutical manufacturing technologies that directly impact patient care.
• Collaborative Culture — Work alongside talented professionals across engineering, manufacturing, quality, regulatory affairs, and process development in a supportive team environment.
• Competitive Benefits — Enjoy a comprehensive benefits package designed to support your health, well-being, and professional success.
• Purpose-Driven Work — Help create the technologies and therapies that improve outcomes for cancer patients and make a lasting difference in healthcare.