Remote Heart Sound and ECG Annotator (Remote - India)

About Grayder
Grayder is the specialist network behind Grayde, a life science AI data company.
Grayder.ai — The Specialist Network for Life Science AI

Overview
Annotate heart sound recordings and ECG strips, and review AI model outputs, to help train and validate clinical biosignal algorithms.

Full Description
We're seeking experienced cardiac physiologists and echocardiographers to annotate heart sound recordings synced with ECG strips, and to review AI-generated model outputs against expert judgment. This work trains and validates AI algorithms for heart and lung sound analysis used in real clinical AI products. You will mark cardiac cycle timing, murmur characteristics, and rhythm using a provided rubric, with a short paid calibration set before full project access.
Your annotations directly shape how these biosignal models learn to detect and characterize cardiac findings.

What You'll Do

• Listen to 15-second heart sound recordings with a synced ECG strip in the web workspace.
• Mark S1, S2, systole, and diastole, and annotate murmurs by timing, shape, grade, pitch, and quality.
• Label signal quality, murmur presence, innocent versus structural classification, and rhythm.
• Review AI model outputs and mark where they are correct or incorrect.
• Occasionally act as adjudicator when other annotators disagree.
• Complete a short paid calibration set before starting full project work.
• Apply the project-specific rubric and instructions consistently across recordings.

Who Can Apply

Board-certified cardiologist, cardiac physiologist or echocardiographer, pulmonologist, respiratory therapist

What We Offer

• Paid per hour or per recording, paid monthly
• Flexible, remote, no minimum hours after the calibration set
• Work on projects that shape clinical AI products used in real care
• Identity and credential verification once, then access to all suitable projects

Apply for this job : https://grayder.ai/jobs/remote-heart-sound-and-ecg-annotation-specialist

Pay: ₹5,000.00 per hour

Expected hours: 3.0 – 10.0 per week

Benefits:

• Flexible schedule
• Work from home

Work Location: Remote