Desarrollador Java Sr. – Gateway ISO 8583
Core
Design, evolve, and maintain a transactional ISO 8583 messaging gateway integrating with major payment networks in Argentina, focusing on authorization, reversals, and reconciliation flows.
Role type
Senior IC backend engineer (payment gateway)
Builds
High-performance, secure transactional messaging gateways and microservices
Domain
Financial services / Payment processing
Required skills
Java (8, 11, 17+), ISO 8583 protocol, Spring Boot, microservices architecture, PostgreSQL/Oracle, HSM integration, PCI-DSS compliance, Docker, CI/CD pipelines
Preferred skills
Azure ecosystem, Quarkus, Kubernetes, Kafka, banking clearing/settlement processes, JUnit/Mockito/SonarQube
Technologies
Java, Spring Boot, Quarkus, PostgreSQL, Oracle, Docker, Azure, Kubernetes, Kafka, JUnit, Mockito, SonarQube
Responsibilities
Design and implement ISO 8583 message mapping, routing, and response handling; develop low-latency backend microservices; implement transactional security (PIN blocks, HSM, PAN masking); optimize transactional databases; deploy and operate services on Azure; write unit and integration tests; collaborate with stakeholders on financial impact decisions
Seniority
Senior, hands-on IC