Sarah Chepchumba

Key Skills

Software

iMerit

Sama

Top Subject Matter

Artificial Intelligence

Image Processing

Machine Learning

Top Data Types

Image

Document

Top Task Types

Classification

Freelancer Overview

Image Annotation Specialist. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include iMerit and Sama. Education includes Bachelor of Science, Masinde Muliro University of Science and Technology (2021). AI-training focus includes; Lidar annotation, data types such as Image and Document and labeling workflows including Classification.

Labeling Experience

Image Annotation Specialist

ImeritImageClassification

As an Image Annotation Specialist at iMerit Scholars, I performed image data labeling and tagging for AI-generated images. I was responsible for evaluating outputs based on provided prompts and ensuring quality and guideline adherence. My role also involved flagging unsafe or policy-violating content and collaborating with team members. • Reviewed AI-generated imagery for correctness and quality • Followed detailed edit instructions and project guidelines • Assessed structural and visual data inconsistencies • Flagged unsafe or policy-violating visual data

As an Image Annotation Specialist at iMerit Scholars, I performed image data labeling and tagging for AI-generated images. I was responsible for evaluating outputs based on provided prompts and ensuring quality and guideline adherence. My role also involved flagging unsafe or policy-violating content and collaborating with team members. • Reviewed AI-generated imagery for correctness and quality • Followed detailed edit instructions and project guidelines • Assessed structural and visual data inconsistencies • Flagged unsafe or policy-violating visual data

2025 - 2026

Data Annotation Associate

SamaDocumentClassification

As a Data Annotation Associate at Samasource Limited, I applied labels and tags to various data types, with a focus on bounding box annotation and document classification. My core duties included sorting and categorizing documents, rigorous quality control, and guideline compliance. I also worked collaboratively with data scientists and engineers to enhance project outcomes. • Applied specific labels or tags to data and images • Sorted and categorized documents into predefined groups • Maintained consistent quality through self and peer review • Followed project-specific instructions and collaborated with technical teams

As a Data Annotation Associate at Samasource Limited, I applied labels and tags to various data types, with a focus on bounding box annotation and document classification. My core duties included sorting and categorizing documents, rigorous quality control, and guideline compliance. I also worked collaboratively with data scientists and engineers to enhance project outcomes. • Applied specific labels or tags to data and images • Sorted and categorized documents into predefined groups • Maintained consistent quality through self and peer review • Followed project-specific instructions and collaborated with technical teams

2023 - 2025

Education

Work History