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Radiology Image Annotator/Contouring Specialist (Remote)

Remote · Global Hourly Rolling start $10–$50/hr
Overview

Remote freelance role annotating and contouring de-identified CT/MRI scans for a medical imaging project. Ideal for radiology residents, radiographers, and medical graduates with good cross-sectional anatomy skills.

About this job

We’re looking for detail-oriented freelancers to annotate and contour medical images for an AI training dataset. You’ll outline anatomical structures and findings on de-identified CT and MRI scans, following a clear annotation protocol that we’ll provide.
Work is fully remote, with flexible hours.

What you'll do
  • Contour specified organs, lesions, or structures slice by slice on CT and MRI scans
  • Label images consistently according to the project annotation protocol
  • Use annotation software to create and export segmentation masks
  • Flag poor-quality, ambiguous, or unusual scans for review
  • Revise annotations based on quality-check feedback
  • Meet agreed weekly case targets and deadlines
Required skills
Medical Image AnnotationRadiology Image AnnotationRadiologyOral & Maxillofacial RadiologyRadiographyRadiology contouringCT interpretationMRI interpretationcross-sectional anatomymedical image segmentationdata labellingquality control
Who can apply
  • Field of study: Radiology / Medical Imaging, Radiography / Medical Imaging Technology, Radiation Therapy / Radiotherapy
About grayder

Life science AI is only as good as the experts who train it.

A vetted network of doctors, scientists, and regulatory specialists who train and evaluate the models behind drug discovery, clinical trials, medical devices, and healthcare. Remote, flexible, matched to your field.

What specialists do

  • Annotation — labelling clinical text, imaging and molecular data
  • Model evaluation — scoring outputs against expert standards
  • Rubric design and execution
  • Fine-tuning data — writing expert responses
  • Q&A sets, summaries and reports

Why specialists join

  • Work matched to your speciality
  • Remote and flexible — on your own schedule
  • Credentialed by your peers
  • Meaningful impact on healthcare AI
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