Zaqueu Souza

Key Skills

Software

Appen

Internal/Proprietary Tooling

CVAT

Top Subject Matter

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Top Data Types

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Top Label Types

Entity Ner Classification

Freelancer Overview

Full-stack web developer with advanced technical background in Firebase, cloud systems, and database management. Experienced with JavaScript, Node.js, and API integration, providing strong foundation for understanding complex data structures and AI training requirements. Excellent attention to detail with proven ability to work on multiple projects simultaneously, maintaining high accuracy standards across diverse technical domains. Strong communication skills in both Portuguese and English enable effective collaboration and clear documentation of work.

Labeling Experience

API Response Data Validation and Code Quality Labeling

Internal Proprietary ToolingComputer Code ProgrammingClassification

Developed and validated data structures for Jetfrio's requisition portal system built on Firebase. Performed quality assurance and data labeling on API responses for the company's import management system, including validation of JSON payloads, API response codes, error handling, and data consistency. Classified and validated approximately 8,000+ API transactions and system logs. Worked on database schema validation, ensuring proper data types, field mappings, and relationships between entities. Implemented data quality checks for supplier information, product specifications, and purchase orders. Achieved 98% accuracy in identifying malformed or inconsistent data entries. Collaborated with backend development teams to document data validation patterns.

Developed and validated data structures for Jetfrio's requisition portal system built on Firebase. Performed quality assurance and data labeling on API responses for the company's import management system, including validation of JSON payloads, API response codes, error handling, and data consistency. Classified and validated approximately 8,000+ API transactions and system logs. Worked on database schema validation, ensuring proper data types, field mappings, and relationships between entities. Implemented data quality checks for supplier information, product specifications, and purchase orders. Achieved 98% accuracy in identifying malformed or inconsistent data entries. Collaborated with backend development teams to document data validation patterns.

2025 - 2025

E-commerce Product Data Classification

AppenTextEntity Ner Classification

Classified product descriptions and metadata from major e-commerce platforms (Mercado Livre, Shopee) into predefined categories. Performed entity recognition on product titles and descriptions to extract key attributes such as brand, model, color, size, and price range. Worked on approximately 15,000 product listings with a quality accuracy target of 95%+. Collaborated with quality assurance teams to maintain consistency and refine categorization guidelines. Used entity tagging to identify key product information for machine learning model training.

Classified product descriptions and metadata from major e-commerce platforms (Mercado Livre, Shopee) into predefined categories. Performed entity recognition on product titles and descriptions to extract key attributes such as brand, model, color, size, and price range. Worked on approximately 15,000 product listings with a quality accuracy target of 95%+. Collaborated with quality assurance teams to maintain consistency and refine categorization guidelines. Used entity tagging to identify key product information for machine learning model training.

2024 - 2024

Video and Audiovisual Content Annotation and Metadata Labeling

CVATVideoBounding Box

Performed video annotation and metadata labeling for audiovisual production projects. Created bounding boxes for object tracking in drone footage, identifying subjects and movements. Labeled 250+ hours of video content with detailed metadata. Collaborated with Starlens Brasil production teams on multimedia asset cataloging.

Performed video annotation and metadata labeling for audiovisual production projects. Created bounding boxes for object tracking in drone footage, identifying subjects and movements. Labeled 250+ hours of video content with detailed metadata. Collaborated with Starlens Brasil production teams on multimedia asset cataloging.

2023 - 2023

Education

Work History