Sean H.

Key Skills

Software

Label Studio

Top Subject Matter

Language Models

AI Alignment

Computer Vision

Top Data Types

Text

Image

Video

Top Task Types

RLHF

Freelancer Overview

AI Trainer & Data Specialist (Freelance). Brings 12+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Label Studio. AI-training focus includes data types such as Text and labeling workflows including RLHF.

Labeling Experience

AI Trainer & Data Specialist (Freelance)

Label StudioTextRLHF

As a freelance AI Trainer & Data Specialist, I designed and tested prompt frameworks for language models. I performed RLHF and SFT-based evaluations, as well as multilingual data annotation and classification. I delivered structured feedback to improve model reasoning, factuality, and tone. • Conducted data annotation and classification tasks for AI and computer vision projects. • Evaluated generative model outputs for consistency and alignment. • Developed prompt frameworks for LLMs. • Provided feedback to enhance model performance and reliability.

2023 - Present

AI Data Trainer

Label StudioTextRLHF

As an AI Data Trainer at Invisible Technologies, I collaborated on training datasets for LLMs. I provided structured reasoning and annotation with a focus on ethical alignment and dialogue quality. I evaluated and delivered feedback on model outputs across various domains. • Supported AI safety and fine-tuning teams with annotation tasks. • Performed evaluation of outputs for creative and professional content. • Provided high-quality feedback on instruction following. • Contributed to the improvement of dataset accuracy and ethical standards.

2022 - Present

Education

Work History