UBS Card Center - Middleware Engineer 80–100% (f/m/d)

• operate, configure and optimize middleware platforms for business-critical applications • design, implement and maintain standardized DevOps processes for platform lifecycle and application support • collaborate closely with application development teams to integrate and configure applications on our middleware platforms • troubleshoot and resolve complex middleware, performance and integration issues across test and production environments • automate recurring operational tasks (scripting, configuration templates, Infrastructure-as-Code approaches) to increase stability and efficiency • contribute to the continuous improvement and modernization of the middleware landscape and related processes, ensuring compliance with security and regulatory requirements