We are looking for an Enterprise Architect to join an EU Institution in Brussels (50% onsite). Responsibilities Install, configure, and administer applications in production and non-production environments Monitor applications, optimize performance, and ensure continuous service improvement Handle support and maintenance activities (incident, change, release, problem management) Create and maintain technical documentation (procedures, troubleshooting guides, backup & restore plans) Automate recurring administrative tasks and improve operational efficiency Contribute to the ICT Operations knowledge base Report on application availability, performance, and capacity Requirements Experience: 12 years in architecture and design of information systems 12 years in Java (J2SE & J2EE) with strong design pattern knowledge 10 years with relational databases (Oracle, PostgreSQL) 8 years in secure web application development 6 years in IT infrastructure environments (deployment, support, maintenance) 5 years in application administration, UML, modeling tools (ArchiMate, Sparx EA), and object-oriented design patterns (incl. AOP) 5 years in web services development (REST & SOAP) 4 years in data analysis and data modeling 2 years with microservices & container platforms (Docker, Kubernetes, Helm, Rancher) 2 years with Elasticsearch (administration & clusters) Exposure to BPMN, enterprise architecture frameworks (TOGAF, COBIT, Zachman), and AI Technical Skills: Strong expertise in Elasticsearch and enterprise application environments (Linux/Microsoft) Experience with configuration management tools (Ansible, Puppet, Chocolatey) Scripting skills (Shell and/or PowerShell) Good knowledge of ITIL processes Nice to Have: Cloud experience (Azure or AWS), DevOps practices Knowledge of MS SQL/PostgreSQL, Kong API Gateway, relevant certifications