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I'm a mid-level backend developer with 3 years of experience, focused on building scalable APIs and enterprise solutions. I value clean code, clean architecture, and collaborative problem solving, and I enjoy turning complex requirements into robust, maintainable systems. I thrive in cross-functional teams and love learning new technologies. I aim to deliver reliable software with excellent performance while continuously improving my craft and mentoring others when possible.…I'm a mid-level backend developer with 3 years of experience, focused on building scalable APIs and enterprise solutions. I value clean code, clean architecture, and collaborative problem solving, and I enjoy turning complex requirements into robust, maintainable systems. I thrive in cross-functional teams and love learning new technologies. I aim to deliver reliable software with excellent performance while continuously improving my craft and mentoring others when possible.

Vitor Barbosa Oliveira

Back-End Developer, Full Stack Developer

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I'm a mid-level backend developer with 3 years of experience, focused on building scalable APIs and enterprise solutions. I value clean code, clean architecture, and collaborative problem solving, and I enjoy turning complex requirements into robust, maintainable systems. I thrive in cross-functional teams and love learning new technologies. I aim to deliver reliable software with excellent performance while continuously improving my craft and mentoring others when possible.…I'm a mid-level backend developer with 3 years of experience, focused on building scalable APIs and enterprise solutions. I value clean code, clean architecture, and collaborative problem solving, and I enjoy turning complex requirements into robust, maintainable systems. I thrive in cross-functional teams and love learning new technologies. I aim to deliver reliable software with excellent performance while continuously improving my craft and mentoring others when possible.

Available to hire

I’m a mid-level backend developer with 3 years of experience, focused on building scalable APIs and enterprise solutions. I value clean code, clean architecture, and collaborative problem solving, and I enjoy turning complex requirements into robust, maintainable systems.

I thrive in cross-functional teams and love learning new technologies. I aim to deliver reliable software with excellent performance while continuously improving my craft and mentoring others when possible.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Portuguese

Fluent

Work Experience

Mid-Level Full-Stack Developer at Otimize-TI

December 9, 2024 - August 22, 2025

- Developed a Java-based ChatBot integrated with Google DialogFlow CX for the Integrated Educational System (SEI) platform. - Actively participated in technical decisions and architecture planning, with autonomy to propose and implement technology choices. - Implemented backend services using Java, Kafka, PostgreSQL, and Spring Framework to enable seamless communication between the ChatBot and SEI system. - Built administrative interface using Primefaces and chat interface using React. - Contributed to a system serving over 90 colleges and approximately 1 million students across all 27 Brazilian states. - Optimized database queries, resulting in a 25% reduction in server load. - Implemented caching strategies, increasing application response time by 60%.

Java Developer at Autbank - Projetos e Consultoria Ltda

January 1, 2023 - October 1, 2024

- Developed and maintained fixed income financial systems serving major Brazilian companies. - Ensured compliance with Central Bank regulations and standards. - Implemented new features and optimizations for legacy systems with over 20 years of market presence.

Mid-Level Java Developer at Social Distribuidora

September 30, 2024 - December 5, 2024

- Developed Java and PL/SQL routines for extending and customizing Sankhya ERP. - Implemented system integrations between ERP and various third-party applications. - Optimized database queries and procedures to enhance system performance.

Full-Stack Developer at 7focus Systems

January 1, 2022 - January 1, 2023

- Contributed to the development and maintenance of a municipal management legacy system. - Implemented new features for REST API using Java and Spring Boot. - Developed web interface components using Angular. - Worked on a system serving multiple municipalities across Brazil.