Catherine Njeri
AI Data Annotation & Evaluation Specialist
About
Catherine Njeri is an AI Data Annotation and Evaluation Specialist with a focus on delivering high-accuracy labeled datasets at scale. With 1 year of experience in the AI/Machine Learning industry, she specializes in computer vision and natural language processing annotation tasks. She has a proven track record of improving inter-annotator consistency by 25%+ and maintaining over 98% accuracy on high-volume annotation projects. She is seeking roles that leverage her data validation and quality assurance expertise within the AI/ML domain.
Experience
AI Data Annotation & Evaluation Specialist
2023 – Present · 3 yrs 9 mosBELAY · Remote/Virtual
- Annotated 200+ images using CVAT with 2D bounding boxes, maintaining 98%+ accuracy.
- Reviewed and validated 300+ text and image annotations, correcting errors.
- Reduced inter-annotator disagreement by 25% by developing annotation decision trees.
Customer Service & Data Support
Jun 2022 – Sep 2022 · 3 mosBrickman Properties Limited
- Resolved 100+ customer disputes with 95%+ satisfaction rate.
- Maintained 100% accuracy on communication records and data entry.
- Developed systems for tracking and organizing customer data with zero errors.
Records and Data Support Intern
2017 – 2018 · 1 yrMinistry of Lands, Housing and Urban Development · Thika
- Processed and validated 300+ title deed records with 100% accuracy.
- Organized and indexed 500+ documents, reducing data retrieval time by 50%.
- Demonstrated meticulous attention to detail in government records.
Skills
Process & Tools
AI & Machine Learning
Data Annotation & Evaluation
Languages
Education & Certifications
Diploma in Information Technology in AI/ML (Artificial Intelligence Fundamentals, Machine Learning Algorithms, Software Engineering)
AIRDT Shule · 2025
Diploma in Cosmetology
Nairobi Institute of Business Studies · 2021
Kenya Certificate of Secondary Education
St. Tito Secondary School · 2017
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