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Maria Herrera

Maria Herrera

AI Trainer (Freelance) | Outlier AI

Canada flagToronto, Canada
$14.00/hrIntermediateMercorMindriftToloka

Key Skills

Software

MercorMercor
MindriftMindrift
TolokaToloka
TelusTelus

Top Subject Matter

General Knowledge
Linguistics (Spanish, English)
Fact-checking Domain Expertise

Top Data Types

TextText
DocumentDocument
VideoVideo

Top Task Types

Bounding BoxBounding Box
Object DetectionObject Detection
Evaluation/RatingEvaluation/Rating
Data CollectionData Collection

Freelancer Overview

AI Trainer (Freelance) | Outlier AI. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Science, York University (2024). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

IntermediateEnglishSpanish

Labeling Experience

AI Trainer (Freelance) | Outlier AI

Text
As an AI Trainer at Outlier AI, I design, evaluate, and rate large language model conversational prompts, focusing on reasoning, factual accuracy, and instruction-following. I perform structured side-by-side response evaluation and write clear rationales to document model behaviors and identify areas for improvement. My work leverages bilingual Spanish–English expertise to assess dialect accuracy, idiomatic correctness, and cultural relevance of AI outputs. • Rate and rank AI-generated responses and check for grounding errors. • Execute prompt engineering and fact-checking workflows. • Critically review AI model outputs for hallucinations and tone mismatches. • Apply deep knowledge of Latin American Spanish for language-specific LLM evaluation.

As an AI Trainer at Outlier AI, I design, evaluate, and rate large language model conversational prompts, focusing on reasoning, factual accuracy, and instruction-following. I perform structured side-by-side response evaluation and write clear rationales to document model behaviors and identify areas for improvement. My work leverages bilingual Spanish–English expertise to assess dialect accuracy, idiomatic correctness, and cultural relevance of AI outputs. • Rate and rank AI-generated responses and check for grounding errors. • Execute prompt engineering and fact-checking workflows. • Critically review AI model outputs for hallucinations and tone mismatches. • Apply deep knowledge of Latin American Spanish for language-specific LLM evaluation.

2024 - Present

Education

Y

York University

Bachelor of Science, Data Science

Bachelor of Science
2024

Work History

Y

York University

Information Technology Assistant

Toronto
2025 - Present
P

Propio Language Services

Bilingual Medical Interpreter

Toronto
2024 - 2025