Mainframe System Programmer

CICS Administration & Maintenance: Install, upgrade, and maintain CICS Transaction Server (CICS TS) environmentsApply patches (PTFs), manage version upgrades, and perform regression validationConfigure and maintain CICS regions (production, test, DR) Maintain startup parameters and system initialization tables (DFHSIT) Performance Monitoring & Tuning: Monitor transaction performance and system health using tools such as: OMEGAMON / MainView / TMONAnalyze: Transaction response timesCPU utilizationStorage usagePerform tuning to eliminate bottlenecks