SMSamuel Munyua
@samuelmunyua
Data annotator and QA specialist delivering high-accuracy labeled datasets for AI.
KenyaWhat I'm looking for
I am a detail-oriented data annotator and QA specialist with 5+ years of experience producing and validating high-quality labeled datasets for machine learning and AI systems. I have hands-on experience across image, video, text and LiDAR annotation, maintain accuracy above 95%, and regularly collaborate with engineers and project managers to resolve ambiguities and improve data quality.
I have led annotation tasks, supported onboarding and training, designed peer-review and validation processes that reduced dataset errors, and implemented workflow improvements that increased team efficiency and consistency. I thrive in cross-functional teams, adapt quickly to evolving guidelines, and document processes to promote standardization and reproducible results.
Experience
Work history, roles, and key accomplishments
Annotation and Platform Specialist
Humans in the Loop
May 2024 - Aug 2025 (1 year 3 months)
Executed daily data labeling and QA with >95% accuracy, reviewed and validated datasets, and designed workflow improvements that increased team efficiency and consistency.
Project Data Annotator
Label Your Data
Apr 2024 - Dec 2024 (8 months)
Performed video, text, and document annotation and audited OCR outputs to improve dataset clarity and reliability while contributing guideline feedback for process refinement.
CLManaged annotation project workflows, supported annotators to resolve tool issues, monitored metrics, and identified operational improvements to boost throughput.
CLAnnotated multimodal datasets (image, video, text, LiDAR) with >95% accuracy, performed motion tracking and event tagging, and led QA reviews to ensure labeling consistency.
Education
Degrees, certifications, and relevant coursework
JTJomo Kenyatta University of Agriculture and Technology
Bachelor of Science, Information Technology
Completed a Bachelor of Science in Information Technology focusing on practical IT and data-related skills relevant to annotation and QA roles.
Tech stack
Software and tools used professionally
Availability
Location
KenyaAuthorized to work in
Job categories
Skills
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