Senior Java Full-Stack Developer

Provided software development services as an independent contractor through a private company. Developed a credit portability system with end-to-end integration to the CIP/ACTC ecosystem, supporting ten ACTC/ARQ file types.

Migrated file receiving and sending to the official CIP JAXB model using official XSDs across API, processing jobs, and legacy-system repositories. Modernized the stack to Java 21, Spring Boot 3.5, and Spring Cloud 2025; implemented domain aggregate-oriented design, a dedicated Montreal API integration service, Spring Data JPA Specifications, and expanded unit, integration, and web test coverage.

Developed approximately 30 corporate systems using Java 21, Spring Boot 3, Angular 19, and NgRx. Built GraphQL and REST APIs, documented services with OpenAPI/Swagger, and integrated frontend applications through Apollo Angular.

Implemented Keycloak-based SSO with OAuth2/OIDC, Gov.br authentication, digital signature workflows, reporting services, document processing, Solr indexing, RabbitMQ messaging, Redis caching, and automated batch routines. Supported Docker-based deployments, Jenkins CI/CD, Nginx, Kong, Prometheus, Graylog, and legal-administrative business systems.

Worked across two engagements as a full-stack developer, building backend services with Spring Boot and Quarkus and frontend applications with Angular.

Integrated web services and APIs, implemented JWT and Spring Security authentication, used PostgreSQL, and maintained automated deployments through GitLab CI/CD runners and GitLab version control.

Developed backend applications using Java and Spring Boot.

Contributed to server-side service implementation and maintenance within a short-term backend development engagement.

Developed backend services using Spring Boot and Java.

Used Git and Bitbucket for source control, Jenkins for continuous integration, and worked with Firestore and Elasticsearch data platforms.

Worked on the SIMP3 project as both backend and frontend developer. Built Spring Boot and GraphQL backend capabilities, Angular frontend features, and Oracle database integrations.

Implemented Spring Security and supported automated deployment through Bamboo while using Jira and Confluence for task and project collaboration.

Worked on the id-cotton system as a member of the frontend team.

Developed frontend functionality using Angular 8 in a freelance engagement.

Developed Java backend systems using JSF 2, JPA/Hibernate, Bean Validation, WildFly 10, and Oracle.

Worked with JWT and Spring Security, source control through Git/GitLab and SVN, and Jenkins-based deployment processes.

Developed Java backend functionality using TotalCross and JPA/Hibernate.

Worked with WildFly 10 application server and Oracle databases.

Supported web application development with JSF 2.0, EJB 3.1, JAX-RS RESTful services, CDI, and Maven.

Built frontend features with AngularJS and Bootstrap and worked with Oracle 11g databases.

Bachelor's degree in Computer Science.