For employers

Hire this AI Trainer

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

Invite to Job
Carlos Victor Guedes Pessoa

Carlos Victor Guedes Pessoa

LLM Evaluation and Text Generation Specialist in Portuguese (Brazilian)

Brazil flagSão Paulo, Brazil
$20.00/hrEntry LevelAppenData Annotation Tech

Key Skills

Software

AppenAppen
Data Annotation TechData Annotation Tech

Top Subject Matter

No subject matter listed

Top Data Types

ImageImage
TextText

Top Task Types

Audio Recording
Classification
RLHF
Translation Localization

Freelancer Overview

I am a detail-oriented professional with a specialization in Linguistics and strong expertise in evaluating and refining Large Language Models (LLMs). In less than six months working with Data Annotation, I was selected for several high-paying projects reserved for a top-performing group, based on consistent excellence in previous work (this was noted by the project admins in the guidelines). My background as an ESL instructor has sharpened my ability to identify subtle nuances in language, cultural context, and communication patterns. This experience directly enhances my effectiveness in improving LLM outputs, as I can recognize both the linguistic and pragmatic aspects of model performance.

Entry LevelEnglishJapanesePortuguese

Labeling Experience

Data Annotation Tech

All the projects I worked on are entirely protected by NDAs

Data Annotation TechTextRLHF
[NDA-protected]

[NDA-protected]

2025 - 2025

Education

M

Mackenzie Presbyterian University

Bachelor's Degree, Languages And Literature

Bachelor's Degree
2005 - 2009

Work History

U

uTest

Beta Tester

Remote
2018 - Present
A

Appen

Social Media Posts Evaluator

Remote
2018 - 2019