Medical Physicist Assistant (Therapy)

One Physics; Indianapolis (IN); On-site; USD 90,000 - 115,000; Full time

Job summary

One Physics in Indianapolis seeks a motivated Therapy Medical Physicist Assistant to join a team providing radiation oncology services. You will work under physicist supervision in a facility with multiple accelerators and HDR programs, contributing to QA, planning support, and safety.

This role emphasizes technical skill, patient care, and collaborative practice. The ideal candidate has a strong physics background, familiarity with planning software, and excellent communication in a

Qualifications

• Bachelor-level degree in health/medical physics or related field.
• Foundational knowledge of radiation physics, therapy and safety best practices.
• Experience with QA tools, survey meters, dosimeters and planning software.
• Proficiency with technical software and data analysis tools.
• Strong attention to detail and ability to follow clinical protocols.
• Excellent interpersonal and communication skills for a multidisciplinary team.

Responsibilities

• Perform weekly/monthly radiation measurements and calibration with Physicists.
• Monitor and ensure safe operation of Radiation Oncology equipment.
• Maintain regulatory records and reports.
• Analyze treatment plans and supervise dosimetry planning functions.
• Assist with treatment development and patient-care based assessments.
• Conduct QA tests on linear accelerators and imaging systems; patient-specific QA.
• Assist with commissioning and acceptance testing of new treatment technologies.
• Support calibration and maintenance to ensure system accuracy.

Skills

QA tools

Survey meters

Dosimeters

Treatment planning software

Technical software

Data analysis

Attention to detail

Organization

Interpersonal skills

Clinical protocols

Physical ability

Education

B.S. in Health Physics / Medical Physics / Physics / Engineering

CAMPEP-Approved Master’s degree preferred

Tools

Brainlab Exactrac Dynamic

Varian Truebeam

Varian Edge

Brainlab Elements Planning System

Varian Eclipse and Aria

Radformation tools (auto contour, clearcheck, clear calc, EZ Fluence)

Elekta Flexitron HDR

Oncentra planning System

Job description

One Physics is seeking a motivated and detail-oriented Therapy Medical Physicist Assistant to join our growing team.

One Physics is the leading provider of medical physics and related services and has been certified as a Great Place to Work for three consecutive years and recognized by Fortune as one of the Best Workplaces in Healthcare in 2022 and 2023. At One Physics, our employees enjoy the support, flexibility, and career development opportunities needed to succeed while contributing to best-in-class patient care and radiation safety services.

We are searching for a highly skilled, compassionate Therapy Medical Physicist Assistant to join our dedicated team of experts. One Physics physicists work with state-of-the-art equipment to provide a range of radiation oncology services to keep a physicist engaged and ensure development of a well-rounded set of skills and growth in the industry. Physicists are supported by a dynamic support team known for a focus on building partnerships and a passion for excellence.

About the Position:

The Medical Physicist Assistant plays an essential clinical support role in the cancer center and the broader hospital. Because the same team handles all the physics work for the hospitals, this position offers experience in both radiation oncology and the full range of medical radiation safety support. The ideal candidate will have a strong technical background and communication skills.

Clinic Information:

• This position is based in Indianapolis.
• This role is supported by 2 other physicists, 3 dosimetrists and 4 Radiation Oncologists.
• The facility is equipped with 2 linear accelerators, both equipped with Brainlab Exactrac Dynamic, Varian Truebeam, Varian Edge, Brainlab Elements Planning System for Stereotactic planning, Varian Eclipse and Aria, Radformation tools like auto contour, clearcheck, clear calc, and EZ Fluencw.
• Active HDR Brachytherapy program using Elekta Flexitron HDR and Oncentra planning System
• Excellent facility with amazing staff and Radiation Oncologists!

What You’ll Do

• Perform weekly and monthly radiation measurements, as well as yearly calibration on all treatment units under the supervision and partnership with Medical Physicists
• Monitor equipment in the Radiation Oncology Department to ensure that it is functioning correctly and safely under the supervision and partnership with Medical Physicists
• Maintain regulatory agency records and reports.
• Analyze alternative treatment plans and supervise dosimetry treatment planning functions.
• Implement assessment/treatment and care based on the developmental stages of the patient.
• Perform additional duties, as needed.
• Perform routine daily, monthly, and annual quality assurance (QA) tests on linear accelerators, imaging systems, and other radiation therapy equipment to ensure optimal performance and patient safety
• Conduct patient-specific QA procedures
• Assist with the commissioning and acceptance testing of new treatment technologies under the supervision and partnership with Medical Physicists
• Support ongoing calibration and maintenance processes to maintain system accuracy and reliability

Treatment Planning Assistance

• Collaborate with medical physicists and dosimetrists in the data collection and validation
• Support clinical staff in maintaining and updating beam models, commissioning data, and patient datasets
• Contribute to troubleshooting and optimization of treatment planning workflows under supervision

System Support & Data Management

• Assist in the maintenance, testing, and documentation of oncology software systems
• Develop or use analysis tools to monitor system performance and ensure clinical accuracy
• Help with the integration and verification of new software and technology updates

Qualifications

• Bachelor of Science (B.S.) degree in Health Physics, Medical Physics, Physics, Engineering, or a closely related field (Master’s degree from a CAMPEP approved program preferred)
• Foundational knowledge of radiation physics, radiation therapy, and radiation safety best practices
• Experience or familiarity with QA tools, survey meters, dosimeters, and treatment planning software
• Proficiency with technical software and data analysis tools
• Excellent attention to detail, organizational skills, and ability to follow clinical protocols
• Strong interpersonal and communication skills to work effectively in a multidisciplinary clinical environment
• Physical ability to handle QA equipment and navigate clinical settings

Final offer amounts are determined by multiple factors, including geographic location, as well as candidate experience, education level and expertise. If you have questions on compensation, please ask your recruiter. After receiving a conditional employment offer, candidates must complete additional job-related screening processes as permitted or required by applicable law.

We are an equal opportunity employer, and all applicants will be considered for employment without attention to their membership in any protected class. If you require any reasonable accommodation to complete your application or any part of the recruiting process, please email your request to HR@onephysics, and please be sure to include the title and the location of the position for which you are applying.