Gabriel Barbosa
@gabrielbarbosa4
Backend Developer at ZDoc building Java APIs for public health systems and reducing SURE network traffic by 80%.
BrazilWhat I'm looking for
At ZDoc, I develop and refactor Java REST APIs for public health systems including SURE, Uno ID, and Sinfros. I also built a standalone password recovery service in Spring Boot using RabbitMQ.
For Sinfros and SURE, I refactored backend operations and rewrote SQL queries, reducing network traffic by 80%. I added unit tests for critical business rules with JUnit5 and Mockito.
Previously, as a Backend / Full Stack Development Intern at Revolution IT Services, I developed and maintained Node.js REST APIs for a B2B SaaS ecosystem. I implemented role-based access control and integrated real-time services using WebSockets.
At SofTeam, I built Node.js and Express APIs with JWT authentication and SQLite data modeling, and collaborated on desktop pharmacy-management software using Electron. I’m looking to contribute to technically complex environments and build scalable, secure, high-impact solutions.
Experience
Work history, roles, and key accomplishments
Desenvolvedor Backend & Full Stack
ZDoc
Mar 2026 - Present (8 months)
Developed and refactored REST APIs in Java for public health systems, designed a microservice for password recovery using Spring Boot and RabbitMQ, implemented unit tests with JUnit5 and Mockito, and optimized database queries reducing network traffic by 80%.
Estagiário em Desenvolvimento Backend / Full Stack
Revolution IT Services
Oct 2025 - Mar 2026 (5 months)
Developed and maintained RESTful APIs for a B2B SaaS ecosystem in Node.js, modeled data and optimized queries with PostgreSQL and Sequelize, implemented RBAC for multitenant isolation, and integrated real-time services using WebSockets.
Desenvolvedor Full Stack
SofTeam
Dec 2024 - Dec 2025 (1 year)
Built complete APIs in Node.js/Express with JWT authentication and session control, participated in full development cycle, and contributed to a desktop pharmacy management software using Electron.
Education
Degrees, certifications, and relevant coursework
Universidade Federal de Sergipe
Bachelor's degree, Computer Science
2023 -
Pursuing a Bachelor's degree in Computer Science, expected to graduate in 2027.
Availability
Location
BrazilAuthorized to work in
Salary expectations
Job categories
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