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Nnamdi Mafuah

Nnamdi Mafuah

Data Annotator - Technology & Internet

Nigeria flagikeja, Nigeria
$30.00/hrIntermediateMicro1LionbridgeMercor

Key Skills

Software

Micro1
LionbridgeLionbridge
MercorMercor
AppenAppen

Top Subject Matter

Graphic Design - Creative / Visual
Social Media & Content Moderation
E- Commerce - Product Categorization

Top Data Types

ImageImage
TextText
AudioAudio

Top Task Types

Bounding BoxBounding Box
SegmentationSegmentation
Data CollectionData Collection
TranscriptionTranscription

Freelancer Overview

I am an experienced data annotator with a strong background in labeling and quality control for AI training data, particularly in computer vision and natural language processing projects. I have worked on multiple projects involving 3D mesh alignment, image classification (including sensitive content categories), and multi-language data annotation in both English and Yoruba. My attention to detail and commitment to data accuracy have enabled me to consistently achieve over 90% annotation accuracy while adhering to strict guidelines. I am skilled in using annotation tools, implementing robust quality control measures, and continuously improving processes for greater efficiency. My experience also includes providing feedback to enhance annotation workflows and collaborating on the development of guidelines to ensure high-quality datasets for machine learning models.

IntermediateEnglishIgbo

Labeling Experience

No Data Labeling experience added

Nnamdi M. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

A

Abia State University

Bachelor of Science, Public Administration

Bachelor of Science
2012 - 2016
A

Airforce Secondary School

West African Senior School Certificate, General Studies

West African Senior School Certificate
2005 - 2011

Work History

W

Waje Game

Social Media Manager

Lagos
2023 - Present
H

Hugo

Data Annotator

Egbeda
2023 - 2026