Dosimetrist

California Protons Cancer Therapy Center provides world-class cancer treatment to patients from around the globe. Our team includes renowned Radiation Oncologists, Medical Physicists, Radiation Therapists, and Dosimetrists who collaborate to deliver precise, effective proton therapy. We are seeking a Dosimetrist who shares our commitment to patient-centered care and high-quality treatment planning.

Position Type: Full-Time (Mostly remote with occasional travel to the office in San Diego, CA)

Reports to: Dosimetry Supervisor 

Classification: Exempt

Salary: $150,000-180,000/year (competitive based on experience)

Summary:

The Dosimetrist will collaborate with the Dosimetry Supervisor and Medical Physicist via email, phone, and Zoom to design and optimize intensity-modulated proton therapy plans using pencil beam scanning. Responsibilities include image fusion, contouring using 3D planning software and auto-contouring tools, evaluating doses to targets and organs at risk using constraint templates, participation in treatment procedures as needed (e.g., summation of prior RT or photon comparison planning for insurance approvals), collaborating with Radiation Oncologist for plan review, adjustments and approval, provide proper documentation and instructions for the therapy team. Remote training and onboarding will be provided. Typical work hours are 8:00 a.m. – 5:00 p.m. in the local time zone, with flexibility as needed.

Role Specifications:

• Mostly remote work environment with collaboration via email, phone, Zoom, and other telecommunication tools. Occasional travel to the office in San Diego, CA might be required.
• Must have reliable internet access and a suitable home office setup
• Onboarding and ongoing virtual collaboration with the team
• Time-zone aligned scheduling to support asynchronous and real-time communications
• Compliance with HIPPA, data security, and secure handling of patient information

Key Responsibilities:

• Create and optimize proton therapy plans (intensity-modulated proton therapy with pencil-beam scanning)
• Perform image registration, image fusion, and contouring using 3D planning software and auto-contouring tools
• Evaluate dose distributions to targets and organs at risk; apply and adjust constraints from templates
• Collaborate with the Dosimetry Supervisor and Medical Physicist to ensure plan quality and clinical feasibility
• Assist in treatment procedures when needed (e.g., prior RT summation, photon-based plan comparisons for approvals)
• Collaborate with Radiation Oncologist for plan review, adjustments and approval
• Provide proper documentation and instructions for the therapy team 
• Maintain documentation and ensure adherence to site-specific standards of practice
• Stay current with evolving proton therapy modalities and planning techniques

Required Qualifications:  

• MDCB Certification
• 1–2 years of proton therapy experience or experience planning complex photon treatments, Varian Eclipse; ARIA experience preferred
• College degree with focus in Radiologic Science, Radiation Therapy, or equivalent
• Strong attention to detail and accuracy in all clinical responsibilities
• Excellent communication and teamwork skills
• Ability to manage multiple cases and maintain timelines
• Commitment to maintaining site-specific standards of practice
• Access to reliable internet and a dedicated workspace

California Protons Cancer Therapy Center is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, creed, national origin, sex, age, disability, genetic information, status as a protected veteran, or any other legally protected status under local, state, or federal law.