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Joseph Galey

Joseph Galey

Al Data Annotator - Healthcare & Life Sciences

KENYA flag
bomet, Kenya
$50.00/hrExpertAws Sagemaker

Key Skills

Software

AWS SageMakerAWS SageMaker

Top Subject Matter

Healthcare - Medical Records & Patient Data
Finance - Risk Analysis & Fraud Detection
E-commerce-Product Categorization & Customer Support

Top Data Types

ImageImage

Top Label Types

Bounding Box

Freelancer Overview

I am a data science specialist with hands-on experience in evaluating and annotating AI model outputs, particularly in advanced data science and NLP domains. My background includes designing and testing prompts for large language models, identifying and documenting failure modes, and providing clear, actionable feedback to enhance model reliability and prompt engineering. I am skilled in Python, SQL, and data visualization tools such as Matplotlib, Seaborn, and Power BI/Tableau, and have a strong foundation in machine learning, statistical analysis, and data preprocessing. My experience spans building and validating machine learning models, performing detailed exploratory data analysis, and maintaining transparent, reproducible documentation to support high-quality AI training data. I am passionate about ensuring accuracy, logical coherence, and methodological rigor in all aspects of data labeling and AI evaluation.

ExpertEnglish

Labeling Experience

Ai image Annotation Specialist

ImageClassification
Performed detailed image annotation tasks for an AI/machine learning project in the technology industry. Responsibilities included identifying, labeling, and bounding objects within images to support computer vision model training. Maintained high accuracy and consistency across a large volume of images while adhering to project guidelines and quality standards. Contributed to improving model performance by ensuring precise and thorough annotations over a 3-6 month engagement

Performed detailed image annotation tasks for an AI/machine learning project in the technology industry. Responsibilities included identifying, labeling, and bounding objects within images to support computer vision model training. Maintained high accuracy and consistency across a large volume of images while adhering to project guidelines and quality standards. Contributed to improving model performance by ensuring precise and thorough annotations over a 3-6 month engagement

2024 - 2025

Education

U

University of California

Bachelor of Science, Data Science

Bachelor of Science
2021 - 2021

Work History

I

Independent Projects

Data Analyst / Data Scientist

Remote
2021 - 2023