Emmanuel (Chinweoke) O.
AI Data Annotation Specialist
Experience
May 2025 - Present
6 monthsPalo Alto, United States
AI Data Annotation Specialist
Micro1
- Perform precise multi-modal annotations across text, audio, and image datasets following detailed project specifications.
- Evaluate content accuracy, detect inconsistencies, and escalate ambiguous data cases for review.
- Provide structured feedback and recommendations to improve AI model training pipelines.
- Maintained a consistent 98% annotation accuracy and QA rating of 4.1/5.0 under strict turnaround times.
- Contributed to the training and validation of the newly launched Ray3 Lumar Model Project, enhancing data efficiency and label precision in multimodal AI learning.
May 2025 - May 2025
1 monthRay3 Lumar Model Training Project
Micro1
- Participated in the annotation and training of the Ray3 Lumar AI model, focusing on multi-domain datasets (text, audio, image, video).
- Improved data consistency and reduced labeling bias through structured annotation feedback loops.
- enhanced multimodal learning accuracy, contributing to overall model optimization.
Apr 2025 - Present
7 monthsMalta
Data Analyst | Software Developer | Educator
Esined Group
- Deliver structured instruction to diploma students in Python, SQL, Object-Oriented Programming, and full-stack development.
- Develop data-driven academic tools and optimize software to enhance learning efficiency.
- Create engaging, factual, and clear instructional content for technical education.
- Apply analytics and visualization techniques to demonstrate the impact of data-driven solutions.
Jan 2025 - May 2025
5 monthsAI Data Annotation Specialist
RWS Group
- Executed data labeling and annotation for AI/ML projects across text, audio, and image datasets.
- Identified factual errors and improved dataset reliability through consistent quality checks.
- Collaborated with cross-functional QA teams to optimize model accuracy.
- Achieved 98% precision rating and met all project performance metrics.
Jan 2025 - Jan 2025
1 monthCustomer Data Analysis
MUCAS Hospital
- Analyzed patient satisfaction metrics, increasing referral rates by 27%.
- Designed Power BI dashboards to monitor and optimize medication distribution.
Nov 2024 - Mar 2025
5 monthsLondon, United Kingdom
Data Analyst
Innovate Path Consulting Limited
- Conducted operational analysis, improving decision-making efficiency by 15% through KPI insights.
- Built interactive Power BI dashboards, reducing manual reporting time by 40%.
- Streamlined preprocessing pipelines, increasing data accuracy by 25%.
- Automated SQL reports, cutting execution time by 30%.
Nov 2024 - Nov 2024
1 monthHealthcare Data Trends Analysis
MUCAS Hospital
- Conducted exploratory data analysis (EDA) to identify recovery time determinants.
- Generated actionable insights that improved infection control compliance by 100%.
Mar 2014 - Nov 2024
10 years 9 monthsIkeja, Nigeria
Data Analyst & Mathematics teacher
Chrisland High School
- Utilized data analytics to design interventions that improved student performance by 35%.
- Developed and analyzed academic datasets to track learning outcomes.
- Created factually accurate teaching materials and guided educators on data-informed methodologies.
Summary
Analytical and detail-driven Data Analyst, Educator, and AI Annotation Specialist with over a decade of experience in structured instruction, fact-checking, and technical documentation.
Adept at performing high-accuracy AI data annotation, conducting data-driven analysis, and creating insightful visualizations that inform strategic decision-making.
Known for precision, clarity, and a strong commitment to data integrity in both AI/ML model training and analytical reporting. I have over 14 years teaching Mathematics and advanced Mathematics in primary and secondary school at all levels preparing students for both internal and external examinations.
Languages
English
NativeEducation
Lagos State University
Bachelor of Science · Computer Science · Nigeria
Certifications & licenses
Advanced Excel For Data Analysis
LinkedIn Learning
Data Analysis & Visualization With Python
Coursera
Microsoft Power Bi Certification
Udemy
Sql For Data Science
DataCamp
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