Open to opportunities

Fellipe Juncal

@fellipejuncal

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Software Engineer with 5+ years of experience in Java, Spring Boot, microservices, and APIs

Brazil

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What I'm looking for

I am looking for an international role that fosters innovation, collaboration, and growth.

I'm a software engineer with 5+ years of experience building scalable and high-performance applications. My expertise lies in Java, Spring Boot, microservices architecture, messaging systems (ActiveMQ, IBM MQ), and PostgreSQL.

Key Achievements & Experience:

Worked on a highly critical financial system for the Brazilian government, migrating COBOL to Java.
Developed batch processing systems with Spring Batch for offline processing.
Implemented rate limiting and monitoring with Resilience4j, Prometheus, and Grafana.
Designed and optimized REST APIs with proper authentication (JWT), error handling, and documentation (Swagger).
Led the development of a betting management system using Spring Boot (backend) and Next.js (frontend).

Current Interests & Learning:

I'm currently expanding my skills in Golang and Ruby on Rails to build robust backend applications. Additionally, I'm focused on improving my interview skills to land an international job.

I'm looking for opportunities where I can solve complex problems, work on impactful projects, and grow in a global team.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

ANBIMA

Feb 2022 - Present (3 years 4 months)

Led the design and migration of the SELIC system to a Java Spring Boot microservices architecture, enhancing scalability and uptime. Developed real-time transaction APIs and offline batch processing, achieving high system reliability and performance improvements.

Java Spring Boot Microservices API Development Automated Testing Systems Architecture Performance Optimization Batch Processing

Software Developer

Bet Manager Api

Sep 2023 - Nov 2023 (2 months)

Designed a betting management system with Spring Boot, focusing on scalability and security. Implemented user authentication and real-time communication features.

Spring Boot JWT API Design Scalability Security Reporting

Software Developer

Oráculo SELIC

Aug 2023 - Aug 2023 (0 months)

Developed a test scenario processing system for message-based microservices, validating financial transactions. Integrated backend and frontend technologies for seamless operation.

Golang ActiveMQ Next.js PostgreSQL Microservices Testing System Integration Backend Development

Software Engineer Intern

ANBIMA

Apr 2020 - Feb 2022 (1 year 10 months)

Contributed to the development of microservices and APIs in a distributed system. Assisted in migrating legacy systems and implementing modern testing practices.

Microservices API Development Legacy System Migration Testing Team Collaboration

Software Developer

Vavive

Mar 2021 - Jul 2021 (4 months)

Developed a management platform using Angular and Spring Boot, featuring JWT authentication and advanced data filtering. Enhanced user experience with a responsive UI.

Angular Spring Boot JWT UI Development User Experience Design Filtering Pagination Frontend Development Backend Development

Education

Degrees, certifications, and relevant coursework

Infnet Institute

Associate’s Degree, Systems Analysis and Development

2019 - 2022

Completed an Associate’s Degree in Systems Analysis and Development, focusing on software engineering principles, system design, and application development.