BME | Bolsas y Mercados Españoles

Are you passionate about coding and ready to make an impact on one of the world's most technologically advanced, innovative, and stable stock exchanges?

We're looking for a skilled Full Stack Developer with strong experience in Java to bring your expertise to the Trading Web Application Development team. In this role, you'll design, build, and deliver high-quality features that power our Market products.

What You Will Do

1. Design and develop high-performance, Java applications for market-facing and value-added applications to trading platforms, leveraging modern frameworks and architectural patterns.
2. Translate business requirements and user expectations into maintainable and scalable solution designs, applying best practices and industry standards.
3. Collaborate effectively within agile teams including developers, testers, product owners, and business stakeholders using Scrum and SAFe methodologies.
4. Ensure code quality and system reliability through peer reviews, automated testing, and continuous integration, proactively identify performance bottlenecks.
5. Drive technical and continuous improvement, proposing enhancements, and contributing to the evolution of the surrounding trading platform's architecture.

What You Bring

1. At least 5 years of professional experience in software engineering, with a strong focus on Java application development (Java 8+, Spring Boot, SOAP/REST web services).
2. Deep expertise in database technologies, including SQL, Hibernate, and database design; experience with both relational and event driven persistence patterns.
3. Proven knowledge of object-oriented design and event based messaging systems (e.g., Kafka), alongside practical experience in integration patterns and optimization and knowledge of core web technologies (HTML, CSS, JS), alongside practical experience with industry-wide frameworks (preferably Angular).
4. Baseline knowledge of continuous integration practices and scalable deployments with containerized applications (e.g., Kubernetes, Openshift).
5. Quality-focused professional with strong problem-solving abilities, and a collaborative, resilient mindset.
6. Familiarity with the FIX protocol and/or direct experience working in financial markets, trading infrastructure, or related environments will be considered as a plus.
7. A full command of English and Spanish with excellent communication skills are required.

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.

The Security Operations Center (SOC) is a critical Line of Defense 1 function at SIX, responsible for detecting, investigating, and responding to cyber threats across endpoint, identity, network, cloud, and email environments. We are looking for a hands-on security professional with experience in incident response, threat hunting, and security monitoring. In this role, you will investigate complex alerts, develop and tune detection use cases, support containment and remediation efforts, improve automation and playbooks, and proactively identify threats to strengthen SIX's overall security posture.

Does it sound interesting for you? Apply now with your CV in English. We are looking forward to hearing for you.

What You Will Do

1. Develop, tune, and maintain threat detections and SIEM use cases across endpoint, network, identity, cloud, mail, and M365 environments.
2. Investigate complex security incidents, lead threat analysis, and coordinate containment and remediation activities.
3. Design and improve detection content, SOC automation, SOAR workflows, and incident response playbooks.
4. Conduct proactive threat hunting using threat intelligence and the MITRE ATT&CK framework.
5. Identify detection gaps and continuously enhance SOC capabilities and security posture.
6. Mentor junior analysts and contribute to SOC process improvements and knowledge sharing.

What You Bring

1. 4+ years of experience in SOC operations, detection engineering, threat hunting, and incident response.
2. Hands-on experience with SIEM, EDR, and SOAR platforms (preferably Sentinel, Elastic, Defender for Endpoint, and Cortex XSOAR).
3. Strong background in detection rule development, security investigations, and threat hunting across multiple telemetry sources.
4. Experience with scripting, automation, APIs, and tools such as Python, GitLab, Azure DevOps, and CI/CD practices.
5. Knowledge of security query languages and frameworks, including MITRE ATT&CK.
6. Strong analytical, communication, collaboration, and mentoring skills.

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.

Are you passionate about modern technology? Do you want to work in an agile, self-organized environment where collaboration, trust, and innovation are paramount? Then, our motivated Application Development Team wants to hear from you. Our goal is to offer technological products of high quality to our customers. You cooperate with Business and IT stakeholders and take over various tasks as Software Engineer in the area of the Spanish Tax Services.

What You Will Do

1. ensure Run operations of the application. Resolution of the incident and problem management process and support the business team.
2. development of the application enhancements and maintenance of the application with business and IT units. Ensure timely delivery of the deliverables.
3. make sure the development and change process is in accordance with the principles and guidance from Architecture, Security & Strategy.
4. continuous improvement in the areas of secure coding, application monitoring and automation. Management of technical debts and timely resolutions.
5. work in close collaboration with Product Owner, IT Architects and other stakeholders.

What You Bring

1. +5 years of experiencie with full-stack development with up-to-date skills in Java OpenJDK, Spring Boot, Angular, OpenShift, ArgoCD, GitLab, Ansible, Tomcat, WildFly.
2. experience in web application development and maintenance.
3. ability to analyze requirements, design test strategies, and identify edge cases before they reach production.
4. high team-working ability.
5. knowledge in secure coding and web security, strong problem-solving and documentation skills with a proactive approach to improving software quality.
6. good verbal and written English and Spanish.

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.

Do you want to work in a highly dynamic environment and build reliable, scalable backend systems? Are you passionate about Java, distributed systems, and event-driven architectures? Then our Backend Engineering Team wants to hear from you.

We are an agile and collaborative team responsible for designing and operating core backend services that power our platform in the Post Trading area of the SIX Swiss Exchange. Our goal is to build & maintain robust, scalable, and maintainable systems that support critical business processes.

In this position, you will work closely with software engineers, architects, and product teams to design, maintain and deliver high-quality backend solutions.

What You Will Do

1. Design, develop, and maintain backend services and REST APIs using Java, Spring, and Spring Boot
2. Build and operate event-driven services using Apache Kafka
3. Develop and maintain applications running on Java application servers such as WildFly
4. Collaborate with engineers and architects on system design, architecture, and technical improvements
5. Ensure reliability, scalability, and performance of production systems

What You Bring

1. Very strong experience (+7 years) with Java backend development and modern backend design principles
2. Experience with Spring and Spring Boot for building microservices
3. Experience with Kafka or other messaging / event-streaming platforms
4. Experience with Wildfly/JBOSS is a big plus
5. Experience designing RESTful APIs and working with SQL databases

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.

Do you want to work in an agile environment where passion, trust, innovation, and operational robustness are key principles?

Are you motivated to learn, grow your technical skills, and contribute to modern DevOps practices while working alongside experienced engineers?

If so, we have an exciting opportunity for you!

We are looking for an Application Ops Engineer to join our Operations Team and support application development teams through automation, standardized CI/CD pipelines, and the configuration of shared operational platforms.

In this role, you will contribute to building and operating scalable deployment and automation solutions, while gaining hands-on experience with tools such as GitLab, Ansible, ArgoCD, Airflow, and Python, and collaborating closely with developers and platform teams to ensure operational quality and Operations best practices across the application lifecycle.

What You Will Do

1. Contribute to the design, implementation, and maintenance of CI/CD pipelines using GitLab and ArgoCDDevelop, adapt, and maintain reusable automation templates using Ansible
2. Support development teams in integrating deployment pipelines, workflows, and observability configurations
3. Assist in the operation and improvement of scheduling and workflow automation platforms such as Airflow
4. Write and maintain Python scripts to support automation, integrations, and operational tasks
5. Help drive standardization, security, and scalability in build and deployment workflows
6. Collaborate with central infrastructure teams on provisioning, upgrades, and shared platform services (e.g. Grafana, Vault, ELK)
7. Document processes, configurations, and best practices, contributing to continuous improvement initiatives
8. Learn and apply modern DevOps tooling and practices, sharing knowledge within the team

What You Bring

1. +5 years of professional experience as DevOps Engineer
2. A strong interest in DevOps and automation across the software delivery lifecycle
3. Hands-on experience or practical knowledge of GitLab CI/CD, Ansible, ArgoCD, or similar tools
4. Basic experience with Python for scripting or automation purposes
5. Familiarity with Linux environments and application deployments
6. Exposure to observability or monitoring tools such as Grafana, ELK, Prometheus is a plus
7. Willingness to learn, ask questions, and collaborate in a cross-functional environment
8. Proactive mindset, good communication skills, and a team-oriented attitude

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.