Database and Middleware Engineer

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Database and Middleware Engineer to join our UniQue team in Luxembourg.

What will you be doing in this role?

• Manage, administer, and monitor databases, application servers, and deployment platforms across production and non-production environments
• Ensure system availability, performance, stability, and service continuity for database and middleware platforms
• Support developers with database design, data modelling, implementation decisions, and SQL/query optimization
• Perform capacity planning, performance analysis, and system evaluations, and implement improvements
• Maintain and validate backup/restore procedures, including disaster recovery environments, ensuring data integrity
• Apply security controls including hardening, access management, patching coordination, and audit support
• Provide L2 support, perform incident and problem management, including root cause analysis and corrective/preventive actions
• Propose and implement continuous service improvements for performance, reliability, security, and cost optimization
• Define and maintain target architecture, roadmap, priorities, and operational standards for database and middleware platforms
• Coordinate technical activities, releases, and change management processes across database and application server environments
• Contribute to ICT strategy, policies, standards, and operational procedures for database and middleware systems
• Report on system health, risks, issues, dependencies, and action plans to stakeholders
• Evaluate new technologies and provide cost/benefit analysis and implementation recommendations
• Contribute to business continuity planning for database and application server platforms
• Maintain operational documentation (runbooks, procedures, reports) and ensure knowledge transfer across teams
• Act as technical lead for database and middleware operations, guiding execution, priorities, and alignment with organizational standards

Requirements:
What will you be bringing to the team?

• Bachelor's degree & 17 years OR Master's degree & 13 years of experience in IT (the experience cannot overlap with studies)
• Minimum 5 years of professional experience in roles involving technical coordination, platform ownership, or infrastructure evolution activities such as roadmaps, upgrades, migrations, or modernization initiatives.
• Strong expertise in relational database systems, including advanced SQL and query optimization techniques.
• Familiarity with supporting mission-critical production platforms, ensuring high availability, resilience, controlled change execution, and operational stability.
• Knowledge of Linux/Unix administration, including shell scripting for automation.
• Proficiency in PostgreSQL and Oracle Database administration (12c and above), including installation, configuration, performance tuning, and maintenance.
• Experience in middleware and application server administration, including Oracle WebLogic (12 and above) and Apache Tomcat.
• Good knowledge of enterprise reporting and collaboration platforms, including SAP Business Objects (BO 3 and BO 4) and Atlassian products.
• Solid understanding of business intelligence reporting tools and their operational and infrastructure dependencies.
• Familiarity with automation and infrastructure management, including scripting, CI/CD pipelines, and configuration management tools
• Expertise with backup, restore, and disaster recovery principles for database and application server environments.
• Understanding of security best practices for databases and application servers, including hardening, access control, patching, and audit support.
• Knowledge and experience with the following technologies is considered an asset: ITIL, virtualization, architecture work (current/target state definition, roadmaps, standards, governance), institutional IT policy and procedures.
• Proficiency in English language at a minimum B2 level.

At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. Take a look at our for more information.