This is us
At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our ****+ 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 integral 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 practices
(
Jenkins, GitHub Actions
) and
Cloud environments
.
Practical usage of
AI-assisted tools
(
GitHub Copilot, Cursor, ChatGPT, Gemini, Claude
) and Prompt Engineering to enhance productivity and code quality.
This is your role
Analyze requirements and design scalable backend solutions aligned with business needs and architectural guidelines.
Develop, maintain, and evolve microservices-based applications and RESTful APIs.
Write clean, maintainable code applying SOLID principles, Clean Code practices, and design patterns.
Ensure software quality through unit testing, active participation in code reviews, and performance optimization.
Identify, analyze, and resolve incidents in production environments.
Collaborate with cross-functional teams across the full software development lifecycle (analysis, design, development, testing, deployment, and support).
At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others.

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