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Tumelo Matlala

Tumelo Matlala

AI medical annotator and data curator

South Africa flagJohannesburg, South Africa
$100.00/hrIntermediateMercorMicro1

Key Skills

Software

MercorMercor
Micro1

Top Subject Matter

Medical AI
Clinical Data
Radiology Domain Expertise

Top Data Types

ImageImage

Top Task Types

SegmentationSegmentation
ClassificationClassification

Freelancer Overview

AI medical annotator and data curator. Brings 7+ years of professional experience in medicine and across complex professional workflows, research, and quality-focused execution. Previous experience, Mercor and Micro1. Education includes Bachelor of Medicine, Bachelor of Surgery, University of Witswatersrand (2019) and Postgraduate Diploma in Emergency Care, College of Medicine South Africa (2023). AI-training focus includes data types such as Medical and DICOM and labelling workflows including Evaluation and Rating.

IntermediateEnglish

Labeling Experience

Mercor

AI medical annotator and data curator

Mercor
I developed and curated clinical datasets used to train AI systems, with a focus on precision and compliance with medical standards. I reviewed and annotated medical content, including radiology reports, to improve AI output accuracy. I evaluated and verified AI system results against expert-level medical knowledge. • Curated and prepared clinical datasets for annotation • Annotated and reviewed radiology reports and other medical content • Evaluated AI model outputs for correctness and reliability • Ensured all data and outputs met current clinical and regulatory standards.

I developed and curated clinical datasets used to train AI systems, with a focus on precision and compliance with medical standards. I reviewed and annotated medical content, including radiology reports, to improve AI output accuracy. I evaluated and verified AI system results against expert-level medical knowledge. • Curated and prepared clinical datasets for annotation • Annotated and reviewed radiology reports and other medical content • Evaluated AI model outputs for correctness and reliability • Ensured all data and outputs met current clinical and regulatory standards.

2025 - 2026

Education

C

College of Medicine South Africa

Postgraduate Diploma in Emergency Care, Emergency Care

Postgraduate Diploma in Emergency Care
2022 - 2023
U

University of Witswatersrand

Bachelor of Medicine, Bachelor of Surgery, Medicine and Surgery

Bachelor of Medicine, Bachelor of Surgery
2014 - 2019

Work History

S

SHI Healthcare

Flight Doctor

Johannesburg
2024 - Present
A

AssetShare

Co-founder

Johannesburg
2022 - Present