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E

Estéfanny Macário

AI Data Quality Analyst

Brazil flagRemote, Brazil
$20.00/hrIntermediateLabelboxMercorSuperannotate

Key Skills

Software

LabelboxLabelbox
MercorMercor
SuperAnnotateSuperAnnotate
Internal/Proprietary Tooling

Top Subject Matter

AI Data Quality
LLM Training Data

Top Data Types

TextText
VideoVideo
Computer Code ProgrammingComputer Code Programming

Top Task Types

RLHFRLHF
Fine-tuningFine-tuning
Evaluation/RatingEvaluation/Rating
Data CollectionData Collection
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
ClassificationClassification
Text GenerationText Generation

Freelancer Overview

AI Data Quality Analyst. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Master of Engineering, Universidade do Porto (2023) and Bachelor of Architecture, Centro Universitário de Brasília (2023). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

IntermediateEnglish

Labeling Experience

AI Data Quality Analyst

Text
In this role, I led data quality evaluation workflows for large-scale AI training datasets. I ensured the accuracy, consistency, and readiness of datasets for use in downstream model training and evaluation. I established review protocols and automated feedback and reporting processes. • Defined and tracked quality metrics for structured datasets • Improved dataset reliability through systematic documentation • Automated reporting using Excel and scripting tools • Increased operational efficiency with streamlined workflows

In this role, I led data quality evaluation workflows for large-scale AI training datasets. I ensured the accuracy, consistency, and readiness of datasets for use in downstream model training and evaluation. I established review protocols and automated feedback and reporting processes. • Defined and tracked quality metrics for structured datasets • Improved dataset reliability through systematic documentation • Automated reporting using Excel and scripting tools • Increased operational efficiency with streamlined workflows

2024 - Present

AI Data Trainer & Research Analyst

Text
As an AI Data Trainer & Research Analyst, I produced and evaluated structured training data for large language models (LLMs). I focused on data correctness, interpretation, and safety throughout the LLM development process. I also supported iterative improvements to annotation guidelines and workflows for consistency. • Evaluated and produced training data for LLMs • Conducted error analysis and data audits • Improved annotation workflows and data guidelines • Enhanced model behavior by refining data design

As an AI Data Trainer & Research Analyst, I produced and evaluated structured training data for large language models (LLMs). I focused on data correctness, interpretation, and safety throughout the LLM development process. I also supported iterative improvements to annotation guidelines and workflows for consistency. • Evaluated and produced training data for LLMs • Conducted error analysis and data audits • Improved annotation workflows and data guidelines • Enhanced model behavior by refining data design

2024 - 2024

Education

C

Centro Universitário de Brasília

Bachelor of Architecture, Architecture and Urban Planning

Bachelor of Architecture
2023 - 2023
U

Universidade do Porto

Master of Engineering, Urban Planning

Master of Engineering
2023 - 2023

Work History

T

The Roam Marketplace

Data Analyst

Remote
2023 - Present
U

UN Sustainable Development Solutions Network

Research Analyst - Sustainable Mobility

Remote
2023 - 2023