Role Overview: As a Senior IBM WebSphere ND & Liberty Cloud Engineer, you will oversee the management and modernization of a legacy WebSphere ND infrastructure, while serving as a subject matter expert in facilitating migration to the IBM Liberty cloud solution. This position requires a keen focus on delivering robust, scalable solutions and acting as a technology referent within a dynamic, cross-functional team based primarily in Belgium.

• Infrastructure Management: Maintain and optimize the existing IBM WebSphere ND platform, ensuring its stability and operational excellence across business-critical environments.
• Cloud Migration: Lead and support the transition of traditional WebSphere applications to IBM Liberty within a private cloud, working alongside architects, infra suppliers, and technology engineers to create a future-proof platform.
• Team Guidance: Guide and mentor a team of engineers, ensuring the delivery of high-quality support, incident resolution, and implementation in line with the group's technology roadmap and standards.
• Stakeholder Collaboration: Work closely with internal customers, service providers, and APS production support teams. Facilitate communication and alignment between IT divisions across Belgium and France.
• Technical Responsibilities: Build, maintain, and monitor environments, focusing on JVM performance, Red Hat Linux administration, Java-based applications, and secure deployments using TLS/SSL.
• Methodology: Contribute to Agile/Scrum teams; utilize modern CI/CD practices and ITIL processes to ensure high standards of availability, security, and disaster recovery.

Required Experience and Skills:

• Extensive hands-on expertise in IBM WebSphere ND (traditional BASE) and IBM Liberty (Core, Base), with more than 10 years of relevant experience.
• Deep proficiency in Java, Apache Tomcat, Red Hat Linux administration, and networking technology.
• Experience with shell scripting, preferably Bash, as well as infrastructure-as-code tools such as Terraform and Ansible Tower is advantageous.
• Experience with monitoring, troubleshooting, and performance tuning JVMs in high-availability environments.
• Familiarity with Agile methodologies, ITIL practices, continuous deployment, disaster recovery, and cloud/containerization paradigms (CaaS).
• Knowledge of ServiceNow and LDAP administration is a plus.

Working Environment: Hybrid work model (Belgium-based, with travel to France as necessary); collaboration within multinational teams; willingness to work outside standard business hours when required. Professional fluency in English is essential; proficiency in French is recommended, and Dutch is a plus.