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Wilson Kaharua

Certified AI Specialist | Response Evaluator | Prompt Engineer | Data Annotation

Kenya flagNairobi, Kenya
$20.00/hrExpertClickworkerCloudfactoryData Annotation Tech

Key Skills

Software

ClickworkerClickworker
CloudFactoryCloudFactory
Data Annotation TechData Annotation Tech
MercorMercor

Top Subject Matter

Finance - mortgages, investing, and personal finance
General Knowledge & Lifestyle
Creative Writing & Storytelling

Top Data Types

TextText
ImageImage
DocumentDocument

Top Task Types

Classification
Text Generation
Question Answering
Text Summarization
Transcription
Evaluation Rating

Freelancer Overview

I am a certified AI specialist with an AI Essentials career certificate from ALX. I have worked as an AI trainer on multiple platforms and for direct clients, where I gained experience in prompt engineering, response evaluation, content categorization, and quality assurance. I am also skilled in data labeling and have handled labeling projects that required precision, consistency, and attention to detail. What sets me apart is my nine years of professional writing and editing experience, which gives me a strong command of language, tone, and structure. I can evaluate AI outputs for factual accuracy, readability, bias, and alignment with user intent. I am comfortable working across domains including finance, lifestyle, general knowledge, and creative writing. I am reliable, detail-oriented, and experienced with remote workflows and platform-based task systems.

ExpertEnglishSwahili

Labeling Experience

AI Response Evaluator and Prompt Engineer

TextClassification
I worked on AI response evaluation projects where I assessed the quality, accuracy, relevance, and safety of AI-generated text outputs. Tasks included comparing multiple responses to the same prompt, ranking them by quality, identifying factual errors, detecting bias or harmful content, and providing structured feedback to improve model performance. I also worked on prompt engineering and optimization, crafting and refining prompts to produce more accurate, useful, and aligned responses. This involved testing different phrasings, adjusting instructions, and analyzing outputs for consistency. In data labeling, I handled text classification tasks including topic tagging, sentiment analysis, and intent recognition. I maintained high consistency across large datasets and followed detailed annotation guidelines. I also reviewed and corrected mislabeled data to improve dataset quality. Quality measures I followed included double-checking ambiguous cases, adhering to platform-specific guidelines, and participating in calibration exercises to ensure alignment with client expectations.

I worked on AI response evaluation projects where I assessed the quality, accuracy, relevance, and safety of AI-generated text outputs. Tasks included comparing multiple responses to the same prompt, ranking them by quality, identifying factual errors, detecting bias or harmful content, and providing structured feedback to improve model performance. I also worked on prompt engineering and optimization, crafting and refining prompts to produce more accurate, useful, and aligned responses. This involved testing different phrasings, adjusting instructions, and analyzing outputs for consistency. In data labeling, I handled text classification tasks including topic tagging, sentiment analysis, and intent recognition. I maintained high consistency across large datasets and followed detailed annotation guidelines. I also reviewed and corrected mislabeled data to improve dataset quality. Quality measures I followed included double-checking ambiguous cases, adhering to platform-specific guidelines, and participating in calibration exercises to ensure alignment with client expectations.

2024 - Present

Education

K

Kenyatta University

Bachelor of Arts, Economics and Sociology

Bachelor of Arts
2011 - 2014
K

Kangunga High School

High School Diploma, General Secondary Education

High School Diploma
2005 - 2008

Work History

W

Wayneglance

Web Content Writer

LA
2022 - 2023
A

Acquire Crowd

SEO Content Writer

Chicago
2016 - 2023