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Marvellous Sampson

AI Evaluator / RLHF Contributor (Independent Contractor)

Nigeria flagRemote, Nigeria
Intermediate

Key Skills

Software

No software listed

Top Subject Matter

Large Language Model Evaluation (LLMs)
AI Model Safety
Multi-domain Text Content

Top Data Types

TextText
DocumentDocument

Top Task Types

RLHFRLHF

Freelancer Overview

AI Evaluator / RLHF Contributor (Independent Contractor). Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. AI-training focus includes data types such as Text and labeling workflows including RLHF.

Intermediate

Labeling Experience

AI Evaluator / RLHF Contributor (Independent Contractor)

TextRLHF
As an AI Evaluator and RLHF Contributor, I evaluated AI-generated responses for accuracy, safety, and helpfulness. I systematically identified and documented hallucinations, logical flaws, and reliability issues in large language models. My responsibilities included applying scoring rubrics and providing detailed feedback to engineering teams. • Executed remote evaluations across multiple domains • Used structured guidelines to ensure objective and consistent ratings • Delivered concise justifications for ratings and feedback • Supported model safety and performance improvement efforts.

As an AI Evaluator and RLHF Contributor, I evaluated AI-generated responses for accuracy, safety, and helpfulness. I systematically identified and documented hallucinations, logical flaws, and reliability issues in large language models. My responsibilities included applying scoring rubrics and providing detailed feedback to engineering teams. • Executed remote evaluations across multiple domains • Used structured guidelines to ensure objective and consistent ratings • Delivered concise justifications for ratings and feedback • Supported model safety and performance improvement efforts.

2023 - Present

Education

No Education added yet

Marvellous S. hasn’t added any Education History to their OpenTrain profile yet.

Work History

F

Freelance

QA Tester / Digital Product Evaluator

Remote
2021 - 2023