ppJoin our TPA Dev team in Madrid and grow into a Calypso Developer. You’ll start as a seasoned Java backend engineer and receive structured training on Calypso, used for Triparty Collateral Management and Repo Services at SIX. This is an on-the-job learning path: you’ll build production-grade services while deepening your knowledge of Calypso and the post-trade domain. /ph3What You Will Do /h3ulliDesign, build, and operate backend services in Java for collateral management and repo workflows, evolving into Calypso customizations and integrations. /liliDevelop robust, multi-threaded services and APIs using Java 8+ and Spring Boot; expose and consume RESTful interfaces. /liliImplement event-driven integrations (e.g., messaging/streaming) between Calypso and internal/external systems. /liliModel, optimize, and maintain relational data structures; write efficient SQL and work with ORM frameworks (Hibernate/JPA). /liliContribute to solution design and architecture, ensuring scalability, resiliency, and observability across services. /liliCollaborate closely with business analysts, Calypso specialists, and SRE/DevOps to deliver reliable, compliant, and secure solutions. /liliParticipate in the full SDLC: requirements, estimation, implementation, code reviews, testing (unit/integration), deployment, and production support. /liliEmbrace infrastructure and platform standards (e.g., Linux RHEL 8+, containerization, CI/CD)



and help automate build/test/deploy pipelines. /liliLearn and extend Calypso: configuration, workflows, data models, APIs, and custom components to support triparty collateral and repo processes. /liliContribute to continuous improvement: reduce technical debt, improve system performance, strengthen security, and enhance developer productivity. /li /ulh3What You Bring /h3ulli4+ years of hands-on software engineering experience with a strong focus on multithreaded backend development in Java (Java 8+). /liliProficiency with Spring Boot, RESTful API design, and building reliable distributed services. /liliStrong database skills: SQL expertise, sound schema design, and experience with Hibernate/JPA. /liliSolid understanding of object-oriented design, event-driven architectures, and messaging patterns. /liliFamiliarity with Linux environments (RHEL 8+), and comfort working with modern CI/CD practices and tooling. /liliUnderstanding of financial markets and post-trade infrastructure; exposure to collateral or repo is a plus. /liliGrowth mindset: positive, result-driven, quality-focused, and systematic thinker with a problem-solving attitude. /liliCollaborative communicator, team-oriented, resilient under pressure; ability to work in a cross-functional, multicultural environment. /liliLanguage skills: English required; German and/or Spanish are a plus. /li /ul /p #J-18808-Ljbffr

📌 Java Backend Developer (Madrid)
🏢 BME | Bolsas y Mercados Españoles
📍 Madrid