Sharon Cheptoo

Key Skills

Software

Appen

Top Subject Matter

AI Data Labeling

Text Annotation

Content Moderation

Top Data Types

Text

Image

Top Task Types

RLHF

Freelancer Overview

AI Data Labeling & Annotation Specialist (Freelance/Contract). Brings 6+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen. Education includes Bachelor of Business Administration, Dedan Kimathi University of Technology (2023). AI-training focus includes data types such as Text and labeling workflows including RLHF.

Labeling Experience

AI Data Labeling & Annotation Specialist (Freelance/Contract)

AppenTextRLHF

I participated in AI data labeling and annotation projects for international AI platforms. My work involved reviewing, annotating, and evaluating various text-based data for model training, optimization, and feedback tasks. These tasks focused on content moderation, text tagging, and reinforcement learning from human feedback. • Contributed to RLHF tasks, text moderation, and prompt/response rating. • Used major platforms such as Appen, TELUS AI, Remotasks, and Clickworker. • Maintained high accuracy and attention to detail in text and content labeling. • Ensured quality and relevance in AI training datasets through consistent evaluation.

I participated in AI data labeling and annotation projects for international AI platforms. My work involved reviewing, annotating, and evaluating various text-based data for model training, optimization, and feedback tasks. These tasks focused on content moderation, text tagging, and reinforcement learning from human feedback. • Contributed to RLHF tasks, text moderation, and prompt/response rating. • Used major platforms such as Appen, TELUS AI, Remotasks, and Clickworker. • Maintained high accuracy and attention to detail in text and content labeling. • Ensured quality and relevance in AI training datasets through consistent evaluation.

2021 - Present

Education

Work History