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Harrison Macharia

Harrison Macharia

AI Data Annotation Specialist - Machine Learning Systems

KENYA flag
Nairobi, Kenya
$24.00/hrIntermediateClickworkerTagtogAppen

Key Skills

Software

ClickworkerClickworker
TagtogTagtog
AppenAppen

Top Subject Matter

No subject matter listed

Top Data Types

ImageImage

Top Label Types

Classification
Emotion Recognition
Evaluation Rating

Freelancer Overview

I am an experienced AI Data Annotation Specialist with a strong background in supporting machine learning and artificial intelligence projects through precise data labeling, annotation, and transcription. My experience spans working with structured and unstructured datasets, including text, image, and audio data, for applications such as speech recognition and natural language processing (NLP). I excel at following detailed guidelines to ensure high-quality, consistent, and accurate datasets that directly contribute to improved AI model performance. Proficient in a range of web-based annotation platforms and data review tools, I am a reliable and self-motivated remote worker who consistently meets productivity targets while maintaining strict quality standards. My commitment to data quality assurance and attention to detail make me a valuable asset for any AI training data project.

IntermediateEnglish

Labeling Experience

Appen

IMAGE ANNOTATION

AppenImageClassificationEmotion Recognition
The project entailed, labeling images so that AI models can learn to recognize patterns, features and contexts.

The project entailed, labeling images so that AI models can learn to recognize patterns, features and contexts.

2025

Education

U

University of Waterloo

N/A, N/A

N/A
2019 - 2023
L

Los Angeles Elementary School

Primary Education Certificate, General Primary Education

Primary Education Certificate
2006 - 2014

Work History

R

REMOTASK

DATA ANNOTATOR

Califonia
2021 - Present
M

Meacor ai

IMAGE/DATA LABELING ANNOTATION

Califonia
2025 - 2025