Full-Stack Software Engineer

SIX drives the transformation of financial markets.

What sets us apart drives us ahead: between local roots and global relevance, we are a unique blend of tradition and future, of foundation and growth. We value bright minds and inspire them to grow with their ideas. Come and shape the future of finance with us.

Full-Stack Software Engineer

Madrid | Working from home up to 40% | Reference 8115

We're looking for a Java Full Stack Developer to join our agile, self-organized engineering team building high-quality products for our Repo customers. You'll work on a greenfield project, collaborate across teams, and help deliver robust features end to end. If you're passionate about modern tech, teamwork, and delivering impact, we'd love to hear from you.

What You Will Do

Work within an agile team to analyze, design, and develop new features and improvements for a greenfield project.

Coordinate technical integrations with external teams and systems: MQ, Elasticsearch, relational databases, External APIs and OpenShift.

Create and maintain technical documentation and architecture artifacts.

What You Bring

Experience: 5+ years building and delivering modern web applications with Java. Strong with Spring Boot, JEE, Hibernate/JPA. Spring ecosystem: Security, Cache, Batch. Frontend: Solid experience designing and developing UIs with Angular

Messaging and streaming: MQ/Kafka. Data/cache: Redis, relational databases, Liquibase. Testing: JUnit

Practices & Tools: Comfortable with Scrum, Docker, OpenShift, CI/CD pipelines, and domain-driven design (DDD)

Problem Solving: Analytical, outcome‑oriented; Proactive team player with strong communication and stakeholder coordination skills

Beneficial: Experience with observability stacks (e.g., Prometheus, Grafana, ELK) and knowledge of API design standards (REST, OpenAPI)

If you have any questions, check out our FAQ page or call Sara Perez de la Cuesta at +34 91 709 56 80.

For this vacancy we only accept direct applications.

Diversity is important to us. Therefore, we are looking to receiving applications regardless of any personal background.

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What We Offer

Flexible Work Models

We trust our employees and offer a work environment that is well-balanced, productive and fosters success.

Personal Development

You will benefit from a culture of continuous learning and feedback. Your personal growth is supported through an extensive learning offering.

Agile Working Methods

Whether through scrum or design thinking,

we solve exciting tasks together in teams.

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