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Robson Caldeira

Robson Caldeira

AI Data Specialist: LLM Evaluation & Annotation Expert (PT-BR, EN)

Brazil flagCuritiba, Brazil
$12.00/hrIntermediateAppenClickworkerCVAT

Key Skills

Software

AppenAppen
ClickworkerClickworker
CVATCVAT
LabelboxLabelbox
LionbridgeLionbridge
OneFormaOneForma
RemotasksRemotasks
Scale AIScale AI

Top Subject Matter

No subject matter listed

Top Data Types

ImageImage
TextText
VideoVideo

Top Task Types

Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Question AnsweringQuestion Answering
Red TeamingRed Teaming
RLHFRLHF
Text GenerationText Generation

Freelancer Overview

I am an AI Data Labeling and LLM Evaluation Specialist with over 1 year of experience in text, image, and video annotation. I have contributed to a variety of AI training projects, including LLM prompt evaluation, text generation, content moderation, and computer vision tasks. My background in data analytics and my fluency in both Portuguese (PT-BR) and English allow me to work on diverse datasets with high precision and cultural sensitivity. I am proficient in tools such as Labelbox, CVAT, and platforms like Outlier, Alignerr, Remotasks, and OneForma. My key strengths include prompt engineering, reinforcement learning with human feedback (RLHF), text summarization, and image/video labeling. I am passionate about delivering high-quality annotations to enhance AI model performance across industries.

IntermediateEnglish

Labeling Experience

Labelbox

LLM Evaluation and Prompt + Response Writing

LabelboxTextQuestion AnsweringText Generation
This project involves evaluating the performance of large language models by analyzing generated responses, assessing prompt completions, and writing new prompts and responses for supervised fine-tuning (SFT). Tasks include Red Teaming to identify vulnerabilities, Question Answering validation, and rating outputs according to detailed guidelines to enhance model quality. The work demands high attention to linguistic nuances, logical consistency, cultural context, and alignment with client-specific quality standards. All annotations undergo strict quality assurance processes to maintain project accuracy benchmarks.

This project involves evaluating the performance of large language models by analyzing generated responses, assessing prompt completions, and writing new prompts and responses for supervised fine-tuning (SFT). Tasks include Red Teaming to identify vulnerabilities, Question Answering validation, and rating outputs according to detailed guidelines to enhance model quality. The work demands high attention to linguistic nuances, logical consistency, cultural context, and alignment with client-specific quality standards. All annotations undergo strict quality assurance processes to maintain project accuracy benchmarks.

2024

Education

U

Universidade Cruzeiro Do Sul

Bachelor's In Engineering, Industrial Engineering And Management

Bachelor's In Engineering
2023 - 2025
U

UNIPETRO

Petrochemical Process Operator, Technology In Oil And Gas

Petrochemical Process Operator
2015 - 2015

Work History

A

Alignerr

AI Data Labeling and Evaluation Specialist

Remote
2024 - Present
O

Outlier AI

AI Data Annotator and LLM Evaluator

Remote
2023 - Present