CICS System Administrator

jA leading enterprise organization is seeking a Mainframe CICS System Administrator to join its infrastructure operations team in the Phoenix, Arizona area. This is a full-time, hybrid opportunity requiring three days per week onsite. The environment includes enterprise-scale mainframe systems, CICS Transaction Server, performance monitoring platforms, and mission-critical transactional workloads supporting major business operations. This role offers the opportunity to work within a highly stable and technically sophisticated mainframe environment where reliability and performance are essential. The organization is seeking an individual who enjoys troubleshooting complex systems, optimizing performance, and maintaining critical infrastructure. The successful candidate will play a key role in modernization efforts while working alongside experienced infrastructure and operations professionals.