Java Microservices Developer

Description

Job Summary: We are seeking SSR and SR Developers for a challenging banking project focused on technology modernization, system migrations, and security enhancements, working with Java 21 and modern architectures. Key Highlights: 1. Technology modernization and security project in the banking ecosystem 2. Migration to Java 21, microservices, and container-based architectures 3. Collaboration within a complex team managing multiple simultaneous initiatives Join Stefanini! At Stefanini, we are more than 30,000 geniuses connected from 41 countries, co\-creating a better future. We are looking for SSR and SR Developers to join a challenging project within the banking ecosystem, focused on **technology modernization, migrations, and security improvements**. The team is operating at a high level of complexity, working on multiple simultaneous initiatives, including: * Evolution of microservices to **Java 21** * Migration of shared services to decoupled architectures * Vulnerability remediation * Transformation toward container-based architectures **Responsibilities and Authorities** **Responsibilities** * Migrate and refactor existing microservices to **Java 21** * Decouple shared services into independent architectures * Integrate microservices into the payment portal * Implement security solutions (Biocatch, Link, etc.) * Adapt services for execution in environments such as **Gluon** * Participate in progressive version migrations (**Java 12, 17, 21**) * Identify and resolve vulnerabilities (using Sonar or other tools) * Implement and manage APIs using **Apigee** * Collaborate on the evolution toward microservices and container architectures * Rapidly understand the business domain to contribute meaningful improvements **Requirements and Qualifications** **Requirements** * Solid experience in **Java (ideally 17 or higher)** * Experience developing **microservices** * Experience migrating/refactoring legacy systems * Knowledge of **APIs and API Management (Apigee)** * Experience with version control (**GitHub**) * Experience with **messaging/event streaming (Kafka)** * Knowledge of **Elastic / observability** * Experience with **containers and modern architectures** * Knowledge of **application security** * Experience working with **Gluon** (or similar technologies) * Familiarity with the payments ecosystem (DEBIN, transfers, etc.) is a plus * Ability to adapt to complex environments with multiple active projects **Additional Information** **Work Modality** * Flexible **hybrid model** * Primarily remote * Occasional in-person attendance: * Approximately **once or twice per month** * In specific situations, up to **once per week** **Desired Profile** * Proactivity and autonomy * Ability to work under pressure in complex environments * Results-oriented mindset * Rapid business domain comprehension * Strong teamwork skills Are you looking for a place where your ideas shine? With over 38 years of experience and a global presence, Stefanini transforms tomorrow — together. Here, every action matters, and every idea can make a difference. Join a team that values innovation, respect, and commitment. If you are a disruptive individual who embraces continuous learning and has innovation embedded in your DNA, then we are exactly what you’re looking for. Come and let’s build a better future — together!