Charles Otieno
Data Annotator | AI Training & Data analyst
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About
Detail-oriented Data Annotator with 8+ years of experience in data quality assurance, pattern recognition, and systematic data validation across financial services, retail, and agriculture sectors. Proven expertise in creating structured datasets, implementing quality control frameworks,
and ensuring data accuracy for analytics and AI training purposes. Strong background in statistical analysis, data categorization, and cross-functional collaboration with technical teams. Currently advancing skills in machine learning workflows and AI model training through ongoing MSc in Data
Science.
Experience
Detail-oriented Data Annotator with 8+ years of experience in data quality assurance, pattern recognition, and systematic data validation across financial services, retail, and agriculture sectors. Proven expertise in creating structured datasets, implementing quality control frameworks,
and ensuring data accuracy for analytics and AI training purposes. Strong background in statistical analysis, data categorization, and cross-functional collaboration with technical teams. Currently advancing skills in machine learning workflows and AI model training through ongoing MSc in Data
Science.
Education
Master of Data Science (Ongoing) – Open University of Kenya (Feb 2025 – Jun 2026)
Certified Data Scientist (IABAC) –2025
