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Freelancer Overview

DALTON CHEGE +254 791 935 343 [email protected] Senior AI Trainer & Conversational AI Specialist linkedin.com/in/daltonchege Nairobi, Kenya (cid:127) Remote PROFILE AI Trainer with 5+ years of experience improving large language models and conversational AI systems. Specialised in chatbot response evaluation, prompt engineering, and Reinforcement Learning from Human Feedback (RLHF). Domain expertise spans financial education, creative direction, and content strategy — enabling high-quality, vertically specific training data across fintech, branding, and entrepreneurship. Consistent top-tier quality scores across multiple platforms with a track record of measurably improving model accuracy, tone, and alignment. PROFESSIONAL EXPERIENCE Senior AI Trainer, Conversational AI Jan 2022 – Present Outlier / Scale AI — Remote Evaluated and ranked thousands of chatbot responses for quality, factual accuracy, tone, and instruction-following across diverse domains. Authored high-complexity prompt–response pairs feeding directly into RLHF pipelines for GPT-4 class models. Top 10% contributor by quality score; specialised in creative writing, entrepreneurship, and finance verticals. Mentored junior annotators on evaluation rubrics and edge-case handling. AI Chatbot Evaluator & Prompt Engineer Mar 2021 – Dec 2021 DataAnnotation.tech — Remote Designed diverse multi-turn conversation datasets to stress-test chatbot reasoning, context retention, and refusal behaviour. Identified hallucinati