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David Kamau

@davidkamau1

AI data analyst at RWS (TRAINAI) who evaluated and ranked AI responses and annotated data for machine learning models.

At RWS (TRAINAI), I annotated, labeled, and reviewed datasets used to train and fine-tune machine learning and generative AI models. I also evaluated AI-generated responses for accuracy, relevance, tone, and safety, and flagged ambiguous guidelines and edge cases.

At HANDSHAKE AI FELLOWSHIP, I wrote complex prompts, crafted reference answers, and rated model outputs. I also analyzed annotation batches to spot error trends and recommend guideline clarifications that reduced rework.

Experience

Work history, roles, and key accomplishments

Current

AI Fellow – Data & Model Evaluation

Current

Handshake AI Fellowship

Jan 2025 - Present (1 year 10 months)

Contributed expert-level data to improve frontier AI models, including writing complex prompts, crafting reference answers, and rating model outputs. Applied analytical reasoning to assess model responses for correctness, logic, and instruction-following, and identified failure patterns to inform training improvements.

Prompt Writing Model Evaluation Data Annotation

Analytical reasoning

AI Training Quality Assessment

AI Data Annotator / Linguistic Specialist

RWS (TrainAI)

Jan 2024 - Dec 2025 (1 year 11 months)

Annotated, labeled, and reviewed text datasets for training and fine-tuning machine learning and generative AI models. Evaluated and ranked AI-generated responses for accuracy, relevance, tone, and safety, and maintained high accuracy under quality audits.

Data Annotation

LLM Response Ranking

Text Labeling Quality Review Accuracy Generative AI Machine Learning