Abdulrafiu A.

Key Skills

Software

Other

Top Subject Matter

LLM evaluation

code verification

prompt engineering

Top Data Types

Text

Top Task Types

Data Collection

Freelancer Overview

Freelance AI Trainer & Technical Data Specialist. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other, Internal, and Proprietary Tooling. Education includes Bachelor of Science, University of Ilorin (2024). AI-training focus includes data types such as Computer Code, Programming, and Text and labeling workflows including Evaluation, Rating, and Data Collection.

Labeling Experience

Freelance AI Trainer & Technical Data Specialist

Other

Freelance AI Trainer and Technical Data Specialist evaluating LLM-generated code outputs for correctness, syntax, and efficiency. Applied RLHF-style ranking and wrote technical justifications for model failures, including bug and reasoning fallacy explanations. Maintained high-quality audit scores by following evolving annotation guidelines and safety-focused evaluation criteria. • Evaluated Python, JavaScript, and SQL code for execution correctness and algorithmic efficiency • Authored advanced prompts to test reasoning, edge cases, and safety boundaries (red teaming) • Ranked outputs using RLHF methodologies and produced comprehensive explanations for errors • Ensured 95%+ quality audit compliance with strict annotation rubric adherence

2024 - Present

Technical Content & Code Reviewer

TextData Collection

Technical Content & Code Reviewer supporting machine learning pipeline preparation through code debugging review and multi-domain content labeling. Reviewed repositories and documentation to ensure accuracy, structural integrity, and clarity, then translated concepts into clear explanations for downstream use. Coordinated with labeling workflows to categorize and tag text corpora alongside code blocks. • Reviewed and debugged technical documentation and code repositories for correctness and clarity • Collaborated on distributed labeling workflows with multi-domain text corpora and code blocks • Synthesized complex computing concepts into structured, human-readable explanations • Produced accurate, well-formed materials aligned to ML pipeline needs under tight deadlines

2022 - 2023

Education

Work History