Dosimetrist, Phoenix, AZ

Phoenix Cyberknife & Arizona Radiation Therapy Specialist is seeking for a Certified Medical Dosimetrist

The Certified Medical Dosimetrist is responsible for designing, calculating, and optimizing individualized radiation treatment plans in collaboration with Radiation Oncologists and Medical Physicists. This position plays a critical role in delivering safe, accurate, and high-quality radiation therapy using advanced treatment technologies, including Varian Ethos, True Beam, Cyberknife and Tomo Therapy.

The ideal candidate will have strong clinical expertise in treatment planning, image-guided and adaptive radiation therapy, and complex treatment techniques. The Dosimetrist must be able to work independently while collaborating effectively with physicians, physicists, radiation therapists, and the broader multidisciplinary oncology team.

• Design and generate individualized radiation therapy treatment plans based on physician prescriptions, target volumes, normal tissue constraints, and established clinical protocols.
• Perform treatment planning for a wide range of disease sites using 3D conformal radiation therapy, IMRT, VMAT, SBRT, SRS, and adaptive radiation therapy techniques.
• Utilize advanced planning systems and technology to create safe, efficient, and clinically optimal treatment plans.
• Review and evaluate treatment plans to ensure appropriate target coverage, dose conformity, homogeneity, and adherence to normal tissue constraints.
• Perform dose calculations and plan optimization in accordance with physician directives and departmental standards.
• Participate in physician plan review and make appropriate modifications based on clinical feedback.
• Prepare treatment documentation and communicate plan requirements clearly to the treatment delivery team.

• Develop and optimize treatment plans for patients treated on the Varian Ethos platform.
• Participate in adaptive radiation therapy workflows, including plan preparation, contour review support, plan evaluation, and adaptive treatment planning.
• Collaborate with Radiation Oncologists, Medical Physicists, and Radiation Therapists to support daily adaptive treatment workflows.
• Evaluate adapted treatment plans to ensure clinical objectives, target coverage, and organ‑at‑risk constraints are met.
• Assist with the development and implementation of standardized workflows, templates, and planning protocols for Ethos adaptive treatments.
• Maintain knowledge of emerging adaptive radiation therapy technologies and best practices.

• Create and optimize treatment plans for delivery on Varian True Beam linear accelerators.
• Develop plans utilizing advanced treatment techniques, including IMRT, 3D, SBRT, and SRS, as applicable.
• Support planning for image-guided radiation therapy and motion management techniques.
• Collaborate with physicians and physicists to develop treatment approaches for complex and high-dose treatments.
• Ensure plans are optimized for efficient and safe delivery while meeting established clinical objectives.

• Perform thorough plan checks and participate in quality assurance processes before treatment delivery.
• Verify treatment plans are complete, accurate, and consistent with physician prescriptions and departmental policies.
• Work closely with Medical Physics to support patient‑specific quality assurance and resolve treatment planning concerns.
• Identify potential safety concerns and participate in corrective action and process improvement initiatives.
• Maintain compliance with all applicable regulatory, accreditation, and departmental requirements.
• Participate in chart rounds, peer review, quality improvement projects, and multidisciplinary conferences as appropriate.

• Collaborate closely with Radiation Oncologists to understand treatment intent and develop appropriate planning strategies.
• Communicate effectively with Medical Physicists regarding treatment planning, dose calculations, plan quality, and technical considerations.
• Work with Radiation Therapists to ensure treatment plans are clinically deliverable and…