Senior Nuclear Engineer & Health Physicist – Radiopharma

Theragenics Corporation; Atlanta (GA); Hybrid; USD 150,000 - 190,000; Full time

Job summary

Theragenics Corporation in Buford, GA seeks a Senior Nuclear Engineer / Health Physicist to lead radiation engineering for radiopharmaceutical manufacturing. You will design, model, and optimize radiation systems, supporting regulatory submissions and manufacturing readiness across cross‑functional teams.

The role emphasizes MCNP-based simulations, dose calculations, and safety enhancements to ensure compliant, efficient operations in a growing healthcare technology company.

Qualifications

• MS or PhD in Nuclear Engineering, Health Physics, Nuclear Physics, Medical Physics, or related field
• 5+ years of experience in radiation engineering, shielding design, health physics, or nuclear engineering environments
• Proficiency with MCNP or equivalent Monte Carlo radiation transport software, 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

Responsibilities

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

Skills

Analytical thinking

Technical writing

Communication

Team collaboration

Education

MS or PhD in Nuclear Engineering | Health Physics

Tools

MCNP

MicroShield

SCALE

PHITS

FLUKA

Geant4

MAVRIC

Job description

Theragenics Corporation in Buford, GA seeks a Senior Nuclear Engineer / Health Physicist to lead radiation engineering for radiopharmaceutical manufacturing. You will design, model, and optimize radiation systems, supporting regulatory submissions and manufacturing readiness across cross‑functional teams.

The role emphasizes MCNP-based simulations, dose calculations, and safety enhancements to ensure compliant, efficient operations in a growing healthcare technology company.