Joseph A.

Key Skills

Freelancer Overview

I am an experienced AI Training Specialist and Data Annotator with over three years of hands-on expertise in creating, refining, and evaluating high-quality training data for NLP and large language models. My work spans complex instruction following, system validation, and Reinforcement Learning from Human Feedback (RLHF), where I excel at preference ranking, adversarial testing, and auditing outputs for accuracy and policy compliance. I have designed multi-layered prompts, authored "Golden Responses," and developed custom verifiers to ensure logical consistency and factual integrity, particularly in sectors like e-commerce, B2B, and Web3. My technical skills include SFT frameworks, prompt engineering, and advanced benchmarking, while my creative background enables me to deliver clear, actionable feedback and synthesize unstructured data into effective training sets. I am passionate about using my analytical rigor and attention to detail to drive continuous improvements in AI model alignment and performance.

Education

Work History