This is us

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development.

This is the job

In Argentina, within the Banking sector, we are actively seeking a Middle Java Backend Developer to strengthen our team dedicated to creating scalable, high-performance microservices and modernizing digital platform solutions.

This is the team

In your role, you'll become a vital member of a team of skilled professionals focused on evolving core banking architecture and delivering high-value, resilient digital services. Your primary responsibility will involve designing, developing, and maintaining microservices-based applications while ensuring high standards of code quality and scalability. Here you will have the opportunity to make a meaningful contribution to general technological progress while at the same time advancing your own skills and career.





This is you
- +2 years of proven experience in Java Backend development (Java 8, Java 21, or higher).
- Solid hands‑on experience with Spring Boot (2.x / 3.x), Spring Web, Spring Data JPA, and Spring Security.
- Strong knowledge of Microservices Architecture and REST API design/implementation.
- Proficient with Git (GitFlow, branching strategies, hotfixes) and build tools like Maven.
- Practical experience writing unit tests using JUnit and Mockito.
- Experience working with both relational and non-relational databases.

Nice-to-have skills:
- Event-driven architecture and messaging technologies (Apache Kafka, IBM MQ).
- Integrations with SOAP protocols and API documentation (OpenAPI / Swagger).
- Containerization and orchestration tools (Docker, Kubernetes, OpenShift).
- Observability and monitoring platforms (Grafana, Prometheus, ELK, Loki, AppDynamics).
- Hands‑on experience with CI/CD

📌 Middle Java Engineer (Buenos Aires)
🏢 avenga
📍 Buenos Aires