Senior Java Developer at Capgemini

Led the migration of 100% of Java applications from Java 8 to Java 17, achieving a 30% improvement in performance and aligning with modern security and language standards. BNP Paribas project: engineered and refined backend APIs using Java 8, Spring 4, and TDD, delivering key features under tight deadlines. Onboarding App project at Capgemini: implemented RESTful APIs and CI/CD pipelines to streamline onboarding processes.

Java Developer at Accenture

Project: KLx – Crédit Agricole. Architected and refined backend APIs using Java 8, Spring 4, and TDD; improved API performance by 30% via refactoring and payload optimization. Ensured quality with JUnit 4 and Postman validation; Swagger-based API docs; led GitLab-based codebase management with 6+ daily commits across 5 developers; implemented Jenkins pipelines for automated testing, build and deployment. Contributed to frontend development with Angular, boosting user satisfaction by 20% (HR feedback). Improved unit test coverage and production quality; Reduced defects by 40%.

Software Developer Intern at Level 33 Brasília

Delivered full-stack web applications for law enforcement using Backbone.js, ASP.NET (C#) and SQL Server; designed and implemented 100+ officer-facing interfaces; reduced admin workload by 25%. Led a small team to scale a mobile-first methodology, delivering multi-platform apps with Ionic 4, Angular and ASP.NET; developed a responsive frontend for ticket processing using Vue.js.

Senior Java Developer at Capgemini

Led the migration of 100% of Java applications from Java 8 to Java 17, achieving a 30% improvement in performance and aligning with modern security and language standards. Upgraded JBoss 7.4 servers, ensuring 100% compatibility with Java 17, and improving server uptime and stability by 25%. Validated all features post-migration, maintaining 99.9% functional parity and preventing regression issues. Created shell scripts to verify deployments and catch 100% of misconfigured server artifacts before production release. Provided hands-on support to team members, resolving 90%+ of migration-related issues and increasing team productivity during the transition phase.

Java Developer at Capgemini – Onboarding App / KLx - Crédit Agricole

Developed and maintained RESTful APIs for an employee onboarding application using Java (Hibernate, JPA) and Spring; streamlined training workflows for over 10 new hires annually; built and validated APIs with Postman, applying Test-Driven Development practices, which led to a 30% reduction in post-deployment bugs; collaborated in a Scrum team of 6+, improving delivery speed; contributed to frontend development with Angular; improved user satisfaction based on internal HR feedback.

Java Developer at AUSY/PT - Accenture

Architected and refined backend APIs using Java 8, Spring 4, and TD D; delivered features under tight deadlines. Client: KLx - Crédit Agricole; Lisbon, Portugal.

Software Developer Intern at Level 33

Delivered a full-stack web application for law enforcement using back-end Java technologies; improved data access for 100+ officers and reduced administrative workload.

Java Developer at AUSY PT / Accenture

Developed and refined back-end APIs using Java 8, Spring 4, and TDD; implemented onboarding features for KLx - Crédit Agricole projects; improved API performance and reduced post-delivery bugs via TD practices and CI/CD.