Senior Java Engineer

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.

At the core of the role In Argentina within the Fintech industry, we are actively seeking a professional to strengthen our team dedicated to scaling and evolving our high-availability payment platforms. In this position, you will play a key role in driving high-throughput transactional flows, leveraging modern cloud-native architectures to enhance our financial solutions. In your role, you'll become a vital member of a team of skilled professionals dedicated to building low-latency distributed systems and optimizing critical payment rails. Your primary responsibility will involve designing robust microservices, mastering cloud integrations, continuously improving code quality, and driving architectural initiatives with strong ownership. 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.

Core skills you’ll bring

• 6+ years of strong experience working with Java and building resilient backend services.

• Background in deployments, CI/CD pipelines, and microservices, both with and without containers.

• Solid experience developing high-availability, low-latency systems and designing robust REST APIs.

• Practical, hands-on knowledge of payment systems, with a strong focus on acquiring or issuing domains.

• Proficient working with AWS cloud infrastructure, including tools like Lambda, EKS, ECS, SQS, SNS, EventBridge, DynamoDB, and API Gateway.

• Strong understanding of microservices architecture and integration patterns.

• Active adopter of AI agents and development assistants used daily for designing, generating, and continuously improving code quality.

Nice-to-have

• Previous experience working in promotional environments or within acquirer processors.

• Familiarity with AWS tools like CloudWatch and DMS.

The impact you'll create

• Design, develop, and maintain high-scale microservices, data models, and integration patterns for core backend solutions

• Drive initiatives and propose simple, effective architectural solutions that align with system needs and product goals.

• Take full ownership of end-to-end technical solutions, ensuring high quality from design to production rollout.

• Secure and optimize high-availability, low-latency systems and database queries that process volume-heavy financial operations.

• Build, deliver, and continuously evolve robust REST APIs.

• Own end-to-end deployment workflows, managing pipelines and CI/CD routines across containerized and non-containerized setups.

• Leverage a wide array of AWS services to support distributed architectures and event-driven data flows.

• Drive engineering excellence by incorporating advanced AI-assisted development tools into your daily workflow.

People are at the core of Avenga. We provide equal opportunities regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to a respectful environment where everyone can be themselves, share their ideas, and feel that they belong.