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Data Annotation

Medical Image Segmentation Annotator

Claru logoClaru$55–$100/hrRemote, open worldwideContractPosted 2mo ago
Apply on Claru (opens the job details)Is Claru legit? Pay and reviews

About the role

You'll draw precise segmentation masks over anatomical structures in CT scans, MRI slices, X-rays, and histopathology slides using DICOM-compatible tools such as OHIF Viewer or ITK-SNAP. Work includes labeling organs, lesions, tumors, and tissue boundaries at the pixel level, following detailed clinical annotation guides provided per project. Throughput expectations vary by modality - a straightforward chest X-ray organ label takes minutes, while a multi-class abdominal CT series can take 30–45 minutes per volume.

Skills

  • DICOM image handling
  • Segmentation mask drawing
  • Anatomical structure recognition
  • ITK-SNAP or OHIF Viewer
  • Attention to fine boundary detail
  • Medical annotation guideline compliance

Where you can work

This role is 100% remote: you can work from anywhere in the world.

From Claru's job posting, checked Oct 18, 2026.

Apply on Claru (opens the job details)

About Claru

Reka AI's data business: paid first-person phone video capture and expert AI evaluation.

How it pays: Trolley bank transfer; approved balances paid every Tuesday once over the $50 minimum (Airtm, PayPal and Payoneer are not supported); the contract allows up to 60 days.

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