Senior Radiation Therapist- Radiation Oncology- MSH- Full Time Days
Mount Sinai Morningside · New York, New York, United States
Full-time
Posted Sep 29, 2026
Job Description
Description
Job Description
The Senior Radiation Therapist is an experienced clinician who delivers safe, accurate, and compassionate radiation therapy while serving as the clinical lead for an assigned treatment unit or simulator. In addition to providing expert patient care, this role is responsible for coordinating daily clinical operations, performing advanced quality assurance activities, ensuring the accuracy and integrity of treatment documentation and record-and-verify systems, and promoting the efficient flow of patient care. The Senior Radiation Therapist serves as a mentor and resource for radiation therapists, students, and new employees, collaborating closely with physicians, physicists, dosimetrists, nursing, and department leadership to uphold the highest standards of patient safety and quality. This role may assume additional leadership responsibilities in the absence of management.
Main Function
Administer radiation therapy treatments according to the Radiation Oncologist’s prescription under minimal supervision.
Keep accurate daily records of treatments administered.
Teaches radiation therapy students technical procedures
Assist in the supervision of the staff radiation therapist
Demonstrates strong understanding of practical psychology, the physiology of cancer, and the emotional and physical responses of patients undergoing treatment.
Acts as Chief Therapist/Supervisor when needed
Responsibilities
Accurately sets-up patients for treatment
Administers radiation treatments
Maintains accurate daily treatment records
Perform simple dose calculations by hand or by using computer software
Checks the Radiation Oncologist’s prescription to determine any mathematical or technical errors.
Performs safety checks on treatment machines/simulators and records data daily
Verifies/Localizes treatment area using radiographic film or electronic medium and submits films to appropriate staff for further action
Interprets beam films to determine accuracy and follows through with having films checked and approved by the appropriate Radiation Oncologist
Understands the function of the equipment and is able to use it to its full potential. Understands the use of wedges and compensating filters, appreciates the misuse or omission during treatment
Understand all procedures and practices before proceeding with the patient set-up. Contacts the appropriate staff if uncomfortable or unsure of procedure
Detects treatment unit malfunctions and knows when safe limits of malfunction have been reached. Reports malfunction to Supervisor, Chief Therapist and Physics
Explains treatment procedure to patients, answer questions, and reassures patient in order to alleviate fears and/or apprehension. Tends to patient modesty
Maintains visual and audible communication with the patient during treatment
Reports any unusual or adverse patient reactions, as a result of radiation treatment, to the appropriate staff member
Is responsible for instructing student radiation therapist
Evaluates students at the end of their rotation
Maintains an organized treatment room, stocked with supplies
Schedules patient appointments when necessary. Ensures that daily treatment schedule is accurate and maximizes therapist’s time
Ensure that weekly chart checks are done
Attends chart rounds, displays films and participates in discussion of patient treatment. Attends in service and ad hoc training sessions
Ensures that all charts for new patients are reviewed at chart rounds
Orientates new employees on assigned treatment unit
Ensures correctness of record and verify system
Schedules in-patients daily on transport list
Creates immobilization devices during simulator rotation. Create/adjust shielding block as needed
Keeps patients in waiting area informed of delays and any progress made in the resolution of the delays
Assists Supervisor/Chief Therapist in establishing new and improved procedures and policies for improved patient care and better working environment
Makes recommendation to Supervisor/Chief Therapist at the time of therapists’ performance appraisal
Displays professional behavior at all times
Performs other duties as assigned
Qualifications
Graduate of an approved, two year, hospital-based certificate program, two year associate degree program, or four year baccalaureate degree program in Radiation Therapy
ARRT registered or eligible for registration within the field of Radiation Therapy
Three to five years of post-certification experience
Simulation experience required
Promotions are based on demonstrated competencies
Name: Certification from American Registry of Radiologic Technologists (ARRT). Issuing Agency: Current New York State Radiation Therapist License – New York State Department of Health
BLS Certification Issuing Agency: AHA
Collective bargaining unit: SEIU 1199-MSH
Employer Description
Strength through Unity and Inclusion
The Mount Sinai Health System is committed to fostering an environment where everyone can contribute to excellence. We share a common dedication to delivering outstanding patient care. When you join us, you become part of Mount Sinai’s unparalleled legacy of achievement, education, and innovation as we work together to transform healthcare. We encourage all team members to actively participate in creating a culture that ensures fair access to opportunities, promotes inclusive practices, and supports the success of every individual.
At Mount Sinai, our leaders are committed to fostering a workplace where all employees feel valued, respected, and empowered to grow. We strive to create an environment where collaboration, fairness, and continuous learning drive positive change, improving the well-being of our staff, patients, and organization. Our leaders are expected to challenge outdated practices, promote a culture of respect, and work toward meaningful improvements that enhance patient care and workplace experiences. We are dedicated to building a supportive and welcoming environment where everyone has the opportunity to thrive and advance professionally. Explore this opportunity and be part of the next chapter in our history.
About The Mount Sinai Health System
Mount Sinai Health System is one of the largest academic medical systems in the New York metro area, with more than 48,000 employees working across eight hospitals, more than 400 outpatient practices, more than 300 labs, a school of nursing, and a leading school of medicine and graduate education. Mount Sinai advances health for all people, everywhere, by taking on the most complex health care challenges of our time — discovering and applying new scientific learning and knowledge; developing safer, more effective treatments; educating the next generation of medical leaders and innovators; and supporting local communities by delivering high-quality care to all who need it. Through the integration of its hospitals, labs, and schools, Mount Sinai offers comprehensive health care solutions from birth through geriatrics, leveraging innovative approaches such as artificial intelligence and informatics while keeping patients’ medical and emotional needs at the center of all treatment. The Health System includes more than 9,000 primary and specialty care physicians; 13 joint-venture outpatient surgery centers throughout the five boroughs of New York City, Westchester, Long Island, and Florida; and more than 30 affiliated community health centers. We are consistently ranked by U.S. News & World Report's Best Hospitals, receiving high "Honor Roll" status, and are highly ranked: No. 1 in Geriatrics, top 5 in Cardiology/Heart Surgery, and top 20 in Diabetes/Endocrinology, Gastroenterology/GI Surgery, Neurology/Neurosurgery, Orthopedics, Pulmonology/Lung Surgery, Rehabilitation, and Urology. New York Eye and Ear Infirmary of Mount Sinai is ranked No. 12 in Ophthalmology. U.S. News & World Report’s “Best Children’s Hospitals” ranks Mount Sinai Kravis Children's Hospital among the country’s best in several pediatric specialties. The Icahn School of Medicine at Mount Sinai is ranked No. 11 nationwide in National Institutes of Health funding and in the 99th percentile in research dollars per investigator according to the Association of American Medical Colleges. Newsweek’s “The World’s Best Smart Hospitals” ranks The Mount Sinai Hospital as No. 1 in New York and in the top five globally, and Mount Sinai Morningside in the top 20 globally.
Equal Opportunity Employer
The Mount Sinai Health System is an equal opportunity employer, complying with all applicable federal civil rights laws. We do not discriminate, exclude, or treat individuals differently based on race, color, national origin, age, religion, disability, sex, sexual orientation, gender, veteran status, or any other characteristic protected by law. We are deeply committed to fostering an environment where all faculty, staff, students, trainees, patients, visitors, and the communities we serve feel respected and supported. Our goal is to create a healthcare and learning institution that actively works to remove barriers, address challenges, and promote fairness in all aspects of our organization.
Compensation
The Mount Sinai Health System (MSHS) provides salary ranges that comply with the New York City Law on Salary Transparency in Job Advertisements. The salary range for the role is $65.3782 - $65.9115 Hourly. Actual salaries depend on a variety of factors, including experience, education, and operational need. The salary range or contractual rate listed does not include bonuses/incentive, differential pay or other forms of compensation or benefits.
Job Description
The Senior Radiation Therapist is an experienced clinician who delivers safe, accurate, and compassionate radiation therapy while serving as the clinical lead for an assigned treatment unit or simulator. In addition to providing expert patient care, this role is responsible for coordinating daily clinical operations, performing advanced quality assurance activities, ensuring the accuracy and integrity of treatment documentation and record-and-verify systems, and promoting the efficient flow of patient care. The Senior Radiation Therapist serves as a mentor and resource for radiation therapists, students, and new employees, collaborating closely with physicians, physicists, dosimetrists, nursing, and department leadership to uphold the highest standards of patient safety and quality. This role may assume additional leadership responsibilities in the absence of management.
Main Function
Administer radiation therapy treatments according to the Radiation Oncologist’s prescription under minimal supervision.
Keep accurate daily records of treatments administered.
Teaches radiation therapy students technical procedures
Assist in the supervision of the staff radiation therapist
Demonstrates strong understanding of practical psychology, the physiology of cancer, and the emotional and physical responses of patients undergoing treatment.
Acts as Chief Therapist/Supervisor when needed
Responsibilities
Accurately sets-up patients for treatment
Administers radiation treatments
Maintains accurate daily treatment records
Perform simple dose calculations by hand or by using computer software
Checks the Radiation Oncologist’s prescription to determine any mathematical or technical errors.
Performs safety checks on treatment machines/simulators and records data daily
Verifies/Localizes treatment area using radiographic film or electronic medium and submits films to appropriate staff for further action
Interprets beam films to determine accuracy and follows through with having films checked and approved by the appropriate Radiation Oncologist
Understands the function of the equipment and is able to use it to its full potential. Understands the use of wedges and compensating filters, appreciates the misuse or omission during treatment
Understand all procedures and practices before proceeding with the patient set-up. Contacts the appropriate staff if uncomfortable or unsure of procedure
Detects treatment unit malfunctions and knows when safe limits of malfunction have been reached. Reports malfunction to Supervisor, Chief Therapist and Physics
Explains treatment procedure to patients, answer questions, and reassures patient in order to alleviate fears and/or apprehension. Tends to patient modesty
Maintains visual and audible communication with the patient during treatment
Reports any unusual or adverse patient reactions, as a result of radiation treatment, to the appropriate staff member
Is responsible for instructing student radiation therapist
Evaluates students at the end of their rotation
Maintains an organized treatment room, stocked with supplies
Schedules patient appointments when necessary. Ensures that daily treatment schedule is accurate and maximizes therapist’s time
Ensure that weekly chart checks are done
Attends chart rounds, displays films and participates in discussion of patient treatment. Attends in service and ad hoc training sessions
Ensures that all charts for new patients are reviewed at chart rounds
Orientates new employees on assigned treatment unit
Ensures correctness of record and verify system
Schedules in-patients daily on transport list
Creates immobilization devices during simulator rotation. Create/adjust shielding block as needed
Keeps patients in waiting area informed of delays and any progress made in the resolution of the delays
Assists Supervisor/Chief Therapist in establishing new and improved procedures and policies for improved patient care and better working environment
Makes recommendation to Supervisor/Chief Therapist at the time of therapists’ performance appraisal
Displays professional behavior at all times
Performs other duties as assigned
Qualifications
Graduate of an approved, two year, hospital-based certificate program, two year associate degree program, or four year baccalaureate degree program in Radiation Therapy
ARRT registered or eligible for registration within the field of Radiation Therapy
Three to five years of post-certification experience
Simulation experience required
Promotions are based on demonstrated competencies
Name: Certification from American Registry of Radiologic Technologists (ARRT). Issuing Agency: Current New York State Radiation Therapist License – New York State Department of Health
BLS Certification Issuing Agency: AHA
Collective bargaining unit: SEIU 1199-MSH
Employer Description
Strength through Unity and Inclusion
The Mount Sinai Health System is committed to fostering an environment where everyone can contribute to excellence. We share a common dedication to delivering outstanding patient care. When you join us, you become part of Mount Sinai’s unparalleled legacy of achievement, education, and innovation as we work together to transform healthcare. We encourage all team members to actively participate in creating a culture that ensures fair access to opportunities, promotes inclusive practices, and supports the success of every individual.
At Mount Sinai, our leaders are committed to fostering a workplace where all employees feel valued, respected, and empowered to grow. We strive to create an environment where collaboration, fairness, and continuous learning drive positive change, improving the well-being of our staff, patients, and organization. Our leaders are expected to challenge outdated practices, promote a culture of respect, and work toward meaningful improvements that enhance patient care and workplace experiences. We are dedicated to building a supportive and welcoming environment where everyone has the opportunity to thrive and advance professionally. Explore this opportunity and be part of the next chapter in our history.
About The Mount Sinai Health System
Mount Sinai Health System is one of the largest academic medical systems in the New York metro area, with more than 48,000 employees working across eight hospitals, more than 400 outpatient practices, more than 300 labs, a school of nursing, and a leading school of medicine and graduate education. Mount Sinai advances health for all people, everywhere, by taking on the most complex health care challenges of our time — discovering and applying new scientific learning and knowledge; developing safer, more effective treatments; educating the next generation of medical leaders and innovators; and supporting local communities by delivering high-quality care to all who need it. Through the integration of its hospitals, labs, and schools, Mount Sinai offers comprehensive health care solutions from birth through geriatrics, leveraging innovative approaches such as artificial intelligence and informatics while keeping patients’ medical and emotional needs at the center of all treatment. The Health System includes more than 9,000 primary and specialty care physicians; 13 joint-venture outpatient surgery centers throughout the five boroughs of New York City, Westchester, Long Island, and Florida; and more than 30 affiliated community health centers. We are consistently ranked by U.S. News & World Report's Best Hospitals, receiving high "Honor Roll" status, and are highly ranked: No. 1 in Geriatrics, top 5 in Cardiology/Heart Surgery, and top 20 in Diabetes/Endocrinology, Gastroenterology/GI Surgery, Neurology/Neurosurgery, Orthopedics, Pulmonology/Lung Surgery, Rehabilitation, and Urology. New York Eye and Ear Infirmary of Mount Sinai is ranked No. 12 in Ophthalmology. U.S. News & World Report’s “Best Children’s Hospitals” ranks Mount Sinai Kravis Children's Hospital among the country’s best in several pediatric specialties. The Icahn School of Medicine at Mount Sinai is ranked No. 11 nationwide in National Institutes of Health funding and in the 99th percentile in research dollars per investigator according to the Association of American Medical Colleges. Newsweek’s “The World’s Best Smart Hospitals” ranks The Mount Sinai Hospital as No. 1 in New York and in the top five globally, and Mount Sinai Morningside in the top 20 globally.
Equal Opportunity Employer
The Mount Sinai Health System is an equal opportunity employer, complying with all applicable federal civil rights laws. We do not discriminate, exclude, or treat individuals differently based on race, color, national origin, age, religion, disability, sex, sexual orientation, gender, veteran status, or any other characteristic protected by law. We are deeply committed to fostering an environment where all faculty, staff, students, trainees, patients, visitors, and the communities we serve feel respected and supported. Our goal is to create a healthcare and learning institution that actively works to remove barriers, address challenges, and promote fairness in all aspects of our organization.
Compensation
The Mount Sinai Health System (MSHS) provides salary ranges that comply with the New York City Law on Salary Transparency in Job Advertisements. The salary range for the role is $65.3782 - $65.9115 Hourly. Actual salaries depend on a variety of factors, including experience, education, and operational need. The salary range or contractual rate listed does not include bonuses/incentive, differential pay or other forms of compensation or benefits.
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