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David Chege

David Chege

AI Evaluation Specialist - Technology & Internet

KENYA flag
Nairobi, Kenya
$25.00/hrIntermediateOneforma

Key Skills

Software

OneFormaOneForma

Top Subject Matter

No subject matter listed

Top Data Types

TextText

Top Label Types

Prompt Response Writing SFT

Freelancer Overview

I am a detail-oriented professional with hands-on experience in AI prompt evaluation, data annotation, and user feedback testing. My work as a usability tester has involved conducting structured evaluations of digital products and collaborating on AI-based projects to refine prompts and feedback loops, directly contributing to improved model accuracy. I am skilled in data labeling, LLM evaluation, and reinforcement learning from human feedback (RLHF), and I am comfortable using tools like Google Sheets for tracking and reporting. With strong analytical and written communication skills, I am passionate about leveraging my critical thinking and keen attention to detail to support the development of high-quality AI training data and enhance model performance.

IntermediateEnglishSwahili

Labeling Experience

OneForma

Prompt + Response Evaluation & Enhancement

OneformaTextPrompt Response Writing SFT
The project focused on evaluating and improving AI generated responses for a customer support chatbot using a single prompt + response writing format. Reviewed and rated responses for accuracy, relevance, helpfulness, and tone, rewriting them when needed to create a high quality dataset. Processed around 5000 prompt response pairs monthly, following strict quality measures including clear guidelines, inter rater checks, spot reviews, and automated QA.

The project focused on evaluating and improving AI generated responses for a customer support chatbot using a single prompt + response writing format. Reviewed and rated responses for accuracy, relevance, helpfulness, and tone, rewriting them when needed to create a high quality dataset. Processed around 5000 prompt response pairs monthly, following strict quality measures including clear guidelines, inter rater checks, spot reviews, and automated QA.

2025 - 2025

Education

M

Machakos University

Bachelor of Economics and Finance, Economics and Finance

Bachelor of Economics and Finance
2021 - 2025

Work History

U

Userlytics

Usability Tester

Nairobi
2024 - Present
O

One forma

AI Response Evaluator

Nairobi
2025 - 2025