Medical Dosimetrist

Certified Medical Dosimetrist

QuarterLine (QL), a Planned Systems International (PSI) company, is seeking a skilled and compassionate Certified Medical Dosimetrist to join a mission-driven Radiation Oncology team at Tripler Army Medical Center in Hawaii. This is an excellent opportunity for an experienced dosimetry professional to apply advanced treatment planning expertise in a collaborative clinical environment supporting high-quality care for military beneficiaries and eligible patient populations.

In this role, the Dosimetrist will play a key part in developing, refining, and optimizing individualized radiation treatment plans in close partnership with radiation oncologists, medical physicists, therapists, and the broader care team. The work includes performing dosimetry calculations and measurements, supporting IMRT/VMAT planning and treatment delivery, reviewing charts for accuracy and completeness, maintaining the ARIA patient database, assisting with treatment blocks and positioning devices, and contributing to quality assurance for treatment planning equipment and processes. This position offers the opportunity to bring strong clinical judgment, technical precision, and problem-solving skills to complex treatment setups while helping deliver safe, accurate, and patient-centered radiation oncology services.

This is more than just a job, it's an opportunity to provide meaningful, hands-on care for the service members and families who serve our nation. If you are passionate about patient care, thrive in a collaborative, team-oriented environment, and want to make a real difference, we want to hear from you.

Duty Location: Tripler Army Medical Center, HI. No telework allowed.

Duty Hours: Monday-Friday, 0730 - 1600. No overtime, no overage, no oncall. Will NOT be required to work holidays.

Essential Functions and Job Responsibilities

• Designing and developing specialized treatment planning programs for comprehensive radiation therapy management of malignant tumors.
• Advising physicians on the appropriateness of the various treatment techniques by comparative and mathematical methodologies.
• Devising alternative treatment strategies for each patient and advising the physician about the relative merits of each to optimize the strategy to be used for each Radiation Oncology patient.
• Communicating and coordinating with members of the health care team the way the radiation treatment and planning is to be carried out.
• Performing routine quality control tests on linear accelerator, simulator, and associated equipment.
• Responsible for all dosimetry treatment planning including external beam treatment planning/treatment delivery with Varian Eclipse IMRT/ VMAT.
• Varian Eclipse IMRT/VMAT planning/treatment delivery. The treatment plans shall be delivered with the timeframes requested by the requesting provider.
• Providing support to Chief Therapist on problem solving with complex treatment setups.
• Performing clinical dosimetry measurements.
• Checking charts of patients under treatment for completeness and accuracy and verifying treatment parameters.
• Maintaining patient database for ARIA.
• Assisting in fabrication of treatment blocks and patient positioning devices.
• Maintaining familiarity with the proper use of radiation therapy equipment and demonstrating capability and efficiency in their operation of the equipment.
• Providing support to Medical Physicist with quality assurance in treatment planning.
• Providing support to Radiation Oncologist with contouring of normal anatomy and any other tasks relevant to treatment planning as determined by the physician.
• May be asked to participate in staff education including the basics of treatment planning.
• Performing routine quality control tests on linear accelerator, simulator, and associated equipment.

Minimum Requirements

• Degree/Education: Degree in Medical Dosimetry within US.
• Legal Authorization to Work in the United States: The contract worker performing under this contract must be a U.S. Citizen.
• Certifications: Board Therapy and Certified Medical Dosimetrist through the Medical Dosimetry Certification Board (AMDCB), ARRT Registered Technologist in Radiation Therapy certified.
• Experience: Minimum of 5 yrs experience (within last year) working as a Certified Medical Dosimetrist. Must have experience with the following: Varian Aria/Eclipse, External beam treatment plan with Varian Eclipse and Philips Pinnacle, Volumetric Arc Therapy (VMAT), Image Guided Radiotherapy (IGRT), Stereotactic Radio Surgery (SRS), Stereotactic Body Radiosurgery (SBRT).

Additional Information

• Occupational Health: The contract worker shall be required to obtain documentation of required physical testing or a report of a physical examination.
• Tuberculosis Screening: The Contractor ensure contract workers shall be screened for tuberculosis (TB).
• Health Requirements. The Contractor shall provide documentation certifying health requirements such as immunizations, annual vaccinations, and physical examination when required at the time of initial placement. Be able to stand for prolonged periods of time. Contract workers shall maintain good personal hygiene and present a well-groomed and professional appearance IAW the policy at the place of performance.
• Background Check: Subject to a background/security investigation. Pre-employment drug screening.

Company Benefits

PSI offers full-time, benefits eligible employees a competitive total compensation package that includes paid leave, and options for employer sponsored group medical, dental, vision, short-term and long-term disability, life insurance, AD&D coverage, legal services, identity theft, and accident insurance. Flexible spending account and health saving account options offer pre-tax savings for qualified medical, dental, and vision expenses. The company sponsored 401(k) retirement plan has an employer contribution match that is immediately vested. We invest in the professional growth of our employees through professional courses, certifications, and tuition reimbursement programs.

EEO Commitment

It is company policy to promote equal employment opportunities. All personnel decisions, including, but not limited to, recruiting, hiring, training, promotion, compensation, benefits, and termination, are made without regard to race, color, religion, age, sex, sexual orientation, pregnancy, gender identity, genetic information, national origin, citizenship status, veteran status, protected veteran status, disability, or any other characteristic protected by applicable federal, state, or local law. Reasonable accommodations for applicants and employees with disabilities will be provided. If a reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact Human Resources by emailing View email address on click.appcast.io, or by dialing View phone number on click.appcast.io.