For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
J

Junia Gabriela Rodrigues Mateus

AI Trainer (Linguistics & AI Evaluator)

BRAZIL flag
Goiânia, Brazil
$20.00/hrIntermediateOther

Key Skills

Software

Other

Top Subject Matter

Natural Language Processing/LLMs
Legal Services & Contract Review
Regulatory Compliance & Risk Analysis

Top Data Types

TextText
VideoVideo
DocumentDocument

Top Task Types

RLHF

Freelancer Overview

AI Trainer (Linguistics & AI Evaluator). Brings 3+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Other. Education includes Bachelor of Arts, Universidade Federal de Goiás (2026) and Master of Arts, Universidade Federal de Goiás (2026). AI-training focus includes data types such as Text and labeling workflows including RLHF.

IntermediateEnglishSpanishPortuguese

Labeling Experience

AI Trainer (Linguistics & AI Evaluator)

OtherTextRLHF
As an AI Trainer and Linguistics Evaluator at Outlier AI, I optimized generative AI models through reinforcement learning from human feedback. My primary responsibility was to evaluate and refine outputs from large language models for factual accuracy, grammatical precision, and linguistic nuance in English and Portuguese. I also authored high-quality prompts and responses to support natural language processing tasks for model training. • Evaluated AI model outputs against predefined guidelines • Annotated language data for accuracy and tone • Authored prompts and completions for supervised fine-tuning • Ensured compliance with ethical and factual standards

As an AI Trainer and Linguistics Evaluator at Outlier AI, I optimized generative AI models through reinforcement learning from human feedback. My primary responsibility was to evaluate and refine outputs from large language models for factual accuracy, grammatical precision, and linguistic nuance in English and Portuguese. I also authored high-quality prompts and responses to support natural language processing tasks for model training. • Evaluated AI model outputs against predefined guidelines • Annotated language data for accuracy and tone • Authored prompts and completions for supervised fine-tuning • Ensured compliance with ethical and factual standards

2024 - Present

Education

U

Universidade Federal de Goiás

Bachelor of Arts, Journalism

Bachelor of Arts
2020 - 2026
U

Universidade Federal de Goiás

Master of Arts, Human Rights

Master of Arts
2026

Work History

T

Teto

Volunteer in Communications

Goiânia
2024 - Present
H

Humanistic Technology

Digital Security Auditor

Goiânia
2025 - 2026