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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
Buenos Aires or Córdoba (Argentina)
within the
Fintech
industry, we are actively seeking a professional to strengthen our team dedicated to evolving our core high-performance financial services. In this position, you will play a key role in scaling critical transactional platforms and driving modern cloud architectures that power real-time financial decisions.
This is the team
In your role, you'll become a vital member of a team of skilled professionals dedicated to building resilient, low-latency systems and collaborating closely with Data Science teams to integrate predictive models. Your primary responsibility will involve designing critical architectures, leading cloud migrations, and mentoring engineeres. Here you will have the opportunity to make a meaningful contribution to technological progress while at the same time advancing your own skills and career.
This is you
5+ years of experience
working with
Java
and
Spring Boot
in high-demand environments.
Solid experience with
real-time decision systems
and low-latency processing.
Strong expertise in
performance optimization
, including profiling, concurrency, and JVM tuning.
Deep knowledge of modern architectural patterns such as
Clean Architecture,



Hexagonal Architecture
, and core design principles.
Hands-on experience with
AWS cloud infrastructure
, specifically managing
EKS, SQS, and SNS
.
Proven track record using
AI-assisted development tools
(such as GitHub Copilot, Codex, or similar) to optimize delivery and code quality.
Nice-to-have skills:
Previous experience collaborating with Data Science teams and consuming Machine Learning models.
Experience designing and maintaining versioned events in distributed systems.
This is your role
Design, build, and evolve critical real-time service architectures to support high-volume financial operations.
Technically lead the migration of backend components to Amazon EKS.
Optimize system performance, scalability, and latency across distributed services.
Design and maintain versioned events, ensuring end-to-end traceability and auditability for all transactional flows.
Mentor and provide technical guidance to the engineering team, fostering best practices.
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.

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