Treatment Planning Dosimetrist

Guys and St Thomas NHS Foundation Trust; Greater London; On-site; GBP 42,000 - 52,000; Full time

Job summary

A reputable healthcare institution in Greater London seeks a professional for the Radiotherapy Physics & Engineering Section. The role involves carrying out patient radiotherapy treatment planning and maintaining safety standards in a high-radiation environment. Candidates should have experience in advising clinical staff on radiotherapy physics and ensuring the optimal operation of treatment equipment. This position is vital for upholding high-quality patient care within the cancer service framework, which is committed to research and clinical excellence.

Qualifications

• Experience in radiotherapy treatment planning and checking.
• Knowledge of physics related to radiotherapy.
• Ability to ensure patient and staff safety in high radiation environments.

Responsibilities

• Carry out patient radiotherapy treatment planning and checking.
• Advise clinical staff on radiotherapy physics.
• Measure patient doses and equipment output.

Job description

The Radiotherapy Physics & Engineering Section is responsible for providing a clinical scientific service to the Radiotherapy Department of Guy’s Cancer Centre. Functions of the section include:

• Carrying out patient radiotherapy treatment planning and checking.
• Advising other clinical staff on the physics of radiotherapy.
• Measuring patient received doses and radiotherapy treatment equipment output.
• Ensuring the safety of patients and staff in a hazardous environment which includes exposure to high levels of ionising radiation.
• Ensuring equipment is operating safely and effectively, and investigating complex faults.
• The evaluation, selection, procurement, installation and acceptance testing of equipment.
• Supporting research and clinical trials.

Working closely with Clinical Oncology and Radiotherapy, physicists, dosimetrists and technicians provide a wide range of services.

The main roles of the post are to carry out treatment planning and checking and to assist in the mould room, as part of a team in the Treatment Planning service.

The post holder will be responsible on a day to day basis to the Lead Treatment Planning Dosimetrists.

Please see the Job Description and Person Specification for detailed information regarding the responsibilities and requirements for this post.

Guy’s and St Thomas’ NHS Trust (GSTT) has embarked upon a comprehensive cancer strategy that will shape the future of services for the next generation of cancer patients. We strive to become a world class cancer service, delivering internationally distinctive services that are patient centred, research driven and clinically led. The cancer centres at GSTT and Queen Mary’s Hospital, Sidcup (QMH) have been created so that we can realise this vision.

The Department of Medical Physics and Clinical Engineering at Guys & St. Thomas’ provides a comprehensive range of scientific and technical services to the Trust and external organisations. Its large Radiotherapy Physics and Engineering section works closely with the Radiotherapy Department to deliver high quality patient care on state of the art equipment.

This advert closes on Wednesday 28 Jan 2026.