james milner
@jamesmilner
Detail-oriented data annotation specialist optimizing datasets for AI and ML.
What I'm looking for
I am a detail-oriented Data Annotation Specialist and Quality Assurance evaluator with practical experience labeling image, text, audio, and video datasets to support AI and machine learning projects. I have collaborated with data scientists to define annotation standards, reviewed and verified dataset quality, and delivered large-volume projects under tight deadlines.
My portfolio includes large-scale image annotation for autonomous vehicles, sentiment labeling of social media text, audio annotation for speech recognition, and medical image segmentation. I combine hands-on use of annotation tools with solid data preparation skills and a commitment to accuracy, efficiency, and consistency to improve model training outcomes.
Experience
Work history, roles, and key accomplishments
Data Annotation Specialist
Yako Company
Jan 2024 - Present (2 years 1 month)
Labeled and annotated thousands of images and videos for computer vision models and reviewed data quality to ensure high training accuracy; collaborated with data scientists to refine annotation standards.
Freelance Data Annotator
Freelance
Jan 2022 - Present (4 years 1 month)
Conducted text, sentiment, and audio annotation for NLP and speech-recognition projects, delivering high-quality labeled datasets under tight deadlines for multiple clients.
Education
Degrees, certifications, and relevant coursework
Masinde Muliro University of Science and Technology
Bachelor of Science, Computer Science
Bachelor of Science in Computer Science with coursework in Data Management, AI Fundamentals, Programming, and Database Systems; graduated in 2024.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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