SIX • Madrid, Community of Madrid, Spain • Posted June 05, 2026
Location
Madrid, Community of Madrid
Job Type
Full-time
Category
Computer Occupations
Posted
June 05, 2026
What You Will Do
Design, build, and operate backend services in Java for collateral management and repo workflows, evolving into Calypso customizations and integrations.Develop robust, multi-threaded services and APIs using Java 8+ and Spring Boot; expose and consume RESTful interfaces.Implement event-driven integrations (e.g., messaging/streaming) between Calypso and internal/external systems.Model, optimize, and maintain relational data structures; write efficient SQL and work with ORM frameworks (Hibernate/JPA).Contribute to solution design and architecture, ensuring scalability, resiliency, and observability across services.Collaborate closely with business analysts, Calypso specialists, and SRE/DevOps to deliver reliable, compliant, and secure solutions.Participate in the full SDLC: requirements, estimation, implementation, code reviews, testing (unit/integration), deployment,...
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