Certified Medical Dosimetrist

A Brief Overview

The Dosimetrist I is an entry-level dosimetry professional responsible for developing treatment plans under the supervision and guidance of senior dosimetrists and medical physicists. This role focuses on applying fundamental knowledge of anatomy, radiation physics, and oncology principles to create accurate, safe, and effective treatment plans using established protocols. The Dosimetrist I assists in contouring, dose calculation, and plan verification, while learning to operate and support the treatment planning and record-and-verify systems. The individual works collaboratively with physicians, physicists, and therapists to support efficient patient care. This position emphasizes developing technical proficiency, gaining exposure to complex cases, and demonstrating sound judgment in clinical decision-making under direct oversight. The Dosimetrist I position requires completion of a probationary training period, typically 3–6 months as determined by evaluations from the Director of Physics & Dosimetry, prior to transitioning to a fully remote model. Continued remote work is contingent upon demonstrated ability to perform all assigned duties effectively and independently. The individual must commit to a fixed schedule within standard clinic hours (7 am to 6 pm) and remain readily available during those hours via the department's preferred communication platform. While the role is designed to function remotely, the dosimetrist must be able to travel to a UH Seidman Cancer Center Radiation Oncology location within a reasonable time frame in the event of a network outage, system downtime, or other urgent on-site needs.

What You Will Do

• Design treatment plans (3D-CRT, IMRT, VMAT, SBRT) to deliver prescribed radiation doses with optimal beam geometry.
• Contour normal tissues and dose-limiting structures using one or more imaging modalities.
• Perform secondary dose calculations to confirm treatment accuracy.
• Perform image fusion (e.g. MR Brain fusions) across multiple datasets per physician/physicist guidance.
• Create and transfer reference images and localization marks for patient setup verification.
• Transfer and process images between PACS, treatment planning systems, and other image platforms.
• Document all pertinent treatment planning information in the record-and-verify system and electronic medical record (EMR), following departmental standards.
• Participate as part of the general dosimetry planning pool.