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Njeri Wanjiku

Njeri Wanjiku

AI Trainer - Machine Learning Systems

KENYA flag
nairobi, Kenya
$30.00/hrEntry LevelClickworker

Key Skills

Software

ClickworkerClickworker

Top Subject Matter

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Top Data Types

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Top Label Types

Audio Recording

Freelancer Overview

I am a detail-oriented AI Trainer and Data Annotator with hands-on experience in labeling both structured and unstructured data for machine learning systems. My background includes evaluating AI-generated responses for accuracy, clarity, and policy compliance, as well as designing and refining prompts to test reasoning and contextual understanding—primarily within the natural language processing (NLP) domain. I have a proven track record of maintaining high quality and productivity standards, consistently achieving over 95% accuracy in my annotation work. My technical skill set includes Python programming, prompt engineering, dataset cleaning, and web development, and I am passionate about ensuring that AI systems are reliable, ethical, and unbiased. With a strong foundation in computer science and experience in remote collaboration, I am committed to contributing to the development of safe and effective AI technologies.

Entry LevelEnglishSwahili

Labeling Experience

No Data Labeling experience added

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

Education

N

N/A

Bachelor of Science, Computer Science

Bachelor of Science
2022 - 2025

Work History

I

international livestock research institute

ICT INTERN

nairobi
2025 - Present