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Mellisa Leon

Mellisa Leon

AI Trainer / Data Annotator

ExpertOther

Key Skills

Software

Other

Top Subject Matter

Large Language Models
AI Safety
General Knowledge

Top Data Types

TextText
DocumentDocument

Top Task Types

Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Freelancer Overview

AI Trainer / Data Annotator. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Bachelor of Arts, Wesleyan University (2024). AI-training focus includes data types such as Text and labeling workflows including Prompt + Response Writing (SFT), Evaluation, and Rating.

Expert

Labeling Experience

AI Trainer / Data Annotator

TextPrompt Response Writing SFT
In this role, I generated training data for large language models by creating high-quality prompts and crafting exemplary responses. I evaluated and ranked AI outputs for tone, reasoning, accuracy, relevance, and safety while conducting fact-checking and safety analysis. I maintained rigorous compliance with project guidelines and contributed to improved model safety and alignment. • Designed prompts and evaluated LLM responses for multiple objectives • Identified model hallucinations, bias, and logical errors • Applied structured project guidelines to ensure data consistency • Performed adversarial prompting and safety checks

In this role, I generated training data for large language models by creating high-quality prompts and crafting exemplary responses. I evaluated and ranked AI outputs for tone, reasoning, accuracy, relevance, and safety while conducting fact-checking and safety analysis. I maintained rigorous compliance with project guidelines and contributed to improved model safety and alignment. • Designed prompts and evaluated LLM responses for multiple objectives • Identified model hallucinations, bias, and logical errors • Applied structured project guidelines to ensure data consistency • Performed adversarial prompting and safety checks

2024 - 2026

AI Data Annotation Specialist

OtherText
As an AI Data Annotation Specialist, I reviewed, annotated, and compared AI-generated text responses across diverse topics. My work involved qualitative and quantitative evaluation, ranking, and labeling of text data to improve model accuracy and safety. I ensured strict adherence to annotation guidelines for maintaining dataset integrity. • Reviewed and classified AI-generated text for safety and relevance • Evaluated and rated outputs for linguistic quality and factual accuracy • Flagged unsafe, biased, or misleading responses • Provided structured feedback to facilitate model alignment

As an AI Data Annotation Specialist, I reviewed, annotated, and compared AI-generated text responses across diverse topics. My work involved qualitative and quantitative evaluation, ranking, and labeling of text data to improve model accuracy and safety. I ensured strict adherence to annotation guidelines for maintaining dataset integrity. • Reviewed and classified AI-generated text for safety and relevance • Evaluated and rated outputs for linguistic quality and factual accuracy • Flagged unsafe, biased, or misleading responses • Provided structured feedback to facilitate model alignment

2023 - 2024

Education

W

Wesleyan University

Bachelor of Arts, Computer Science

Bachelor of Arts
2024 - 2024

Work History

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