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Michael Kinyanjui

Michael Kinyanjui

Mathematics Instructor - Academic & Financial Analytics

KENYA flag
Kiambu, Kenya
$60.00/hrExpertAppen

Key Skills

Software

AppenAppen

Top Subject Matter

No subject matter listed

Top Data Types

VideoVideo

Top Label Types

Point Key Point
Entity Ner Classification
Segmentation

Freelancer Overview

I am a mathematics specialist with over six years of experience in quantitative analytics, university-level instruction, and AI training, including designing rigorous problem sets and structured solution guides. My background includes developing and curating high-quality datasets, applying advanced mathematical modeling, and mentoring teams in both academic and industry settings. I am highly skilled in Python (NumPy, pandas, scikit-learn), R, MATLAB, and SQL, and have extensive experience with remote collaboration tools and content design. I excel at ensuring data accuracy, logical consistency, and clear documentation, and am adept at translating complex mathematical concepts into actionable training data for AI and machine learning applications. My experience spans financial modeling, risk analytics, and educational content, making me well-equipped to contribute to diverse data labeling and annotation projects.

ExpertEnglishSwahili

Labeling Experience

Appen

Video Data Annotation for AI Model Training

AppenVideoPoint Key PointEntity Ner Classification
Labeled and annotated hundreds of video clips with precise object, action, and scene categorization. Applied structured multi-step labeling protocols to ensure consistency and accuracy. Verified AI outputs against ground truth; corrected errors and refined annotation guidelines. Integrated quantitative checks using Python to validate numerical or mathematical data in simulations. Collaborated remotely with QA teams to maintain 99%+ labeling accuracy.

Labeled and annotated hundreds of video clips with precise object, action, and scene categorization. Applied structured multi-step labeling protocols to ensure consistency and accuracy. Verified AI outputs against ground truth; corrected errors and refined annotation guidelines. Integrated quantitative checks using Python to validate numerical or mathematical data in simulations. Collaborated remotely with QA teams to maintain 99%+ labeling accuracy.

2020 - 2025

Education

Y

Yale University

Master of Science, Mathematics

Master of Science
2015 - 2017
U

University of Michigan

Bachelor of Science, Mathematics

Bachelor of Science
2009 - 2013

Work History

Y

Yale University

Lecturer and Mathematics Instructor

New Haven
2021 - Present
C

Citibank

Senior Data Scientist

New York
2018 - 2021