John Muema

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Freelancer Overview

I have over four years of experience specializing in data labeling and annotation for AI and machine learning projects. My work includes labeling and validating text, image, audio, and video data while strictly following detailed annotation guidelines to ensure accuracy and consistency. I have hands-on experience with tasks such as classification, tagging, entity recognition, sentiment labeling, image bounding boxes, segmentation, and content moderation, all contributing to high-quality training datasets. I stand out for my strong attention to detail, speed without sacrificing accuracy, and ability to maintain quality across large-scale datasets. I am highly adaptable to new tools, platforms, and labeling standards, and I work effectively with QA teams to resolve ambiguities and improve annotation guidelines. With a proven track record of meeting productivity targets and quality benchmarks, I bring reliability, precision, and a strong understanding of how labeled data directly impacts model performance.

Labeling Experience

NPL

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NLP data labeling project focused on training a customer-support AI model

NLP data labeling project focused on training a customer-support AI model

2024 - 2024

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