Senior Infrastructure Engineer – Luxembourg

The Senior Infrastructure Engineer brings expert-level knowledge in systems architecture and infrastructure engineering. This role sets standards for tools and techniques used across infrastructure platforms and oversees the full lifecycle of infrastructure delivery — from design and deployment to testing and support. The engineer is responsible for building and maintaining robust, secure, and scalable infrastructure systems, with a strong emphasis on middleware, automation, and cloud technologies.

Responsibilities

You will play a key role in designing and supporting infrastructure across the Post-Trade IT landscape. Your responsibilities will include:

• Designing, deploying, and maintaining Web server (httpd), Application Server (RedHat JBoss EAP), and other middleware components (e.g., Terraform/IaC resources, RedHat JBoss A-MQ, Kafka), across both on-premise and public cloud environments using IaaS and PaaS models.
• Evaluating and integrating new infrastructure solutions and emerging technologies, with a focus on cloud architecture (IaaS/PaaS/SaaS), APIs, security, high availability, data replication, and operational resilience.
• Developing and maintaining automation frameworks, infrastructure-as-code scripts, and DevOps pipelines, including comprehensive documentation.
• Supporting approximately six major production deployments annually (typically scheduled on Saturdays).
• Collaborating independently with development, infrastructure, and information security teams to ensure successful delivery and integration.
• Documenting infrastructure architecture and security models, particularly for critical internet-facing systems.
• Working closely with other domain experts and reporting to the Head of Unit.

Required Skills and Experience

• Master’s degree (or equivalent) in Computer Science or a related field.
• Proven experience configuring, deploying, and supporting Web and middleware infrastructure on Linux systems, particularly httpd and RedHat JBoss EAP.
• Deep understanding of multi-tier infrastructure challenges, especially in high availability, security, and transaction management.
• Ability to make, justify, and challenge infrastructure design decisions.
• Practical knowledge of TLS (PKI), including middleware configuration and certificate/key management.
• Strong ability to document infrastructure and security architecture; excellent technical writing skills in English.

Technologies:

• httpd Web server
• Java application server on Linux (preferably RedHat JBoss EAP)
• Apache Maven
• IntelliJ and/or Eclipse IDE
• Linux OS
• OpenID Connect SSO
• Git
• Public cloud platforms and APIs (preferably Microsoft Azure and Google Cloud Platform)

Additional Assets

• Experience with infrastructure-related Java/JakartaEE components
• Familiarity with RedHat OpenShift, ActiveMQ/JBoss A-MQ, Kafka, Ansible, Jenkins, Docker, Kubernetes
• French and German language skills are a plus