Senior Director, Dosimetry and Radiobiology Physicist

For our client, we are seeking a Senior Director, Dosimetry and Radiobiology Physicist to join the team of a leader in the Pharmaceuticals & Biotech space. This senior leadership role will drive dosimetry strategy and radiobiology integration across the development lifecycle for radiopharmaceutical therapeutics. The position will partner closely with clinical, preclinical, and cross-functional teams to translate quantitative imaging and dose-response analysis into sound clinical development decisions. It will also shape data quality standards, external collaborations, and vendor relationships to support innovative oncology programs. Location: Remote - US based candidates only, no visa sponsorship available Compensation: $241,768 – $292,966 annually Responsibilities Lead internal dosimetry and dose-response analysis for radiopharmaceutical agents from discovery through clinical development Design and execute dosimetry strategies for preclinical and clinical studies, including reporting and workflow development Direct patient-level dosimetry methods using quantitative imaging modalities such as PET and SPECT Champion innovative multi-scale dosimetry approaches to assess dose heterogeneity effects, especially for alpha-emitters Integrate dosimetry with radiation biology to inform clinical dose selection and therapeutic strategies Optimize dosimetry data quality control in accordance with industry guidelines and standards Manage relationships with external vendors, academic collaborators, and government agencies to ensure effective dosimetry practices Qualifications Advanced degree in Medical Physics, Nuclear Engineering, or a related discipline with training in radiation transport and internal dosimetry At least 10 years of experience leading radiopharmaceutical dosimetry programs in academic, clinical, or industry settings Minimum 5 years of dosimetry experience for oncology radiopharmaceutical therapeutics, preferably with alpha-emitters Subject Matter Expert in radiopharmaceutical therapy dosimetry for oncology, including diverse emitter technologies Proven project management skills and experience leading cross-functional teams Benefits Comprehensive benefit plans including wellbeing support, retirement, and insurance offerings Flexible Time Off (FTO) for U.S.-based exempt employees, with unpaid leave available by managerial approval 11 paid company holidays annually, plus additional optional holidays for specific employees Paid sick leave and optional paid volunteer days each year Annual global shutdown between Christmas and New Year's Day Our client is an equal opportunity employer. We encourage you to apply even if you don’t meet every qualification—your background could be exactly what this team needs.