12/18/2025 Hybrid, Madrid Up to €53,000 At BIGZON, we are seeking an Expert Senior Middleware Administrator (Weblogic/Jboss) with solid technical experience for a stable project in the banking sector: **RESPONSIBILITIES:** Participate in the design of the Middleware platform. Propose initiatives for platform evolution. Maintain up-to-date documentation for the Middleware platform. Knowledge of customer interfaces. Manage the Middleware team in service mode. Act as liaison between customers and the technical team, and among different technical teams. Provide support in project design and monitoring. Perform RCA analysis of platform issues. **REQUIREMENTS:** Required experience: Over 5 years in a similar position. Mandatory: Weblogic \- Jboss \- Apache \- Advanced English. Desirable technologies: Oracle Service Bus Tuxedo Tibco Active MQ AWS Cloud Dynatrace **WE OFFER:** Permanent contract. Salary up to €53,000 (depending on experience and English proficiency). Standard working hours: Monday to Thursday, 8:00–9:00 a.m. to 5:30–6:30 p.m.; Friday, 8:00 a.m. to 3:00 p.m. Hybrid work model: Higher on-site presence required during the first 6 months; thereafter, 2 remote working days per week are permitted. **OFFICE LOCATION:** Barajas area. At BIGZON — this GREAT ZONE to work — we value diversity and inclusion. We are committed to creating a workplace where all individuals feel valued and respected. We seek candidates who share these values and are eager to work in a healthy, collaborative, and goal-oriented environment. We look forward to welcoming you!