Sampson Kiikpoye
@sampsonkiikpoye
Data Annotation Specialist with 2+ years labeling image, text, and audio datasets to improve high-performing AI models.
What I'm looking for
I’m a Data Annotation Specialist with 2+ years of experience labeling and validating datasets to support high-performing machine learning models. I focus on image, text, and audio annotation with a strong attention to detail and accuracy.
In my most recent role (Remote / Freelance, June 2025 – Feb 2026), I annotated 100,000+ data points and maintained 98%+ accuracy by following structured annotation guidelines and rigorous QA processes. I applied bounding boxes, segmentation, and classification for computer vision, and handled NLP annotation including sentiment analysis and entity recognition.
I’ve also worked as a Data Labeling Assistant (Contract, Feb 2024 – June 2025), where I labeled and categorized datasets for NLP and computer vision projects, reviewed and corrected annotation errors, and used annotation tools to process high-volume data efficiently. Through collaboration and quality checks, I consistently help improve dataset consistency and reliability.
Experience
Work history, roles, and key accomplishments
Data Annotation Specialist
Freelance
Jun 2025 - Feb 2026 (8 months)
Annotated 100,000+ data points across image, text, and audio datasets for machine learning, applying bounding boxes, segmentation, and classification. Maintained 98%+ accuracy by following annotation guidelines and running QA/validation, while supporting remote teams with workflow improvements.
Data Labeling Assistant
Contract Role
Feb 2024 - Jun 2025 (1 year 4 months)
Labeled and categorized NLP and computer vision datasets for AI training, ensuring dataset quality through review and correction of annotation errors. Processed high-volume data using annotation tools and documented feedback to refine labeling instructions.
Education
Degrees, certifications, and relevant coursework
Adeleke University
Bachelor of Engineering (B.Eng), Civil Engineering
Earned a Bachelor of Engineering (B.Eng) in Civil Engineering from Adeleke University in Nigeria.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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