Brian O.

Key Skills

Software

Scale AI

Appen

Mindrift

Top Subject Matter

AI language model training and evaluation

Top Data Types

Text

Image

Top Task Types

RLHF

Freelancer Overview

Freelance AI Trainer & Prompt Evaluator. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Scale AI. Education includes Bachelor's Degree, University of Nairobi. AI-training focus includes data types such as Text and labeling workflows including RLHF.

Labeling Experience

Freelance AI Trainer & Prompt Evaluator

Scale AITextRLHF

As a freelance AI Trainer & Prompt Evaluator, I provided structured human feedback for reinforcement learning from human feedback (RLHF) pipelines. My tasks included reviewing and rating AI-generated responses, crafting prompts, annotating datasets, and evaluating AI-generated outputs for quality and factual accuracy. The work contributed to model alignment and robustness by improving response helpfulness, safety, and instruction-following. • Reviewed and rated AI-generated text for quality, safety, and instruction adherence. • Created and submitted diverse prompts to test large language models. • Annotated text datasets for tasks such as NER, sentiment analysis, and classification. • Evaluated code, creative writing, and factual Q&A for consistency and accuracy.

2023 - Present

Education

Work History