Mainframe CICS System Administrator

The Modern

United States

6 days ago

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Role details

Contract type

Temporary contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Working hours

Regular working hours

Job source

www.dice.com

Tech stack

Unix Customer Information Control System (CICS) Data Files IBM DB2 Entry Sequenced Data Set Monitoring of Systems Job Control Language (JCL) IBM Mainframe IBM WebSphere MQ Tivoli Management Framework Intrusion Detection Systems Job Entry Subsystem 2/3

+13 more

Mainframes MVS (OS) Performance Tuning IBM Resource Access Control Facility System Programming Virtual Storage Access Methods Z/OS Tso/ispf Data Storage Management Software Troubleshooting File-aid Omegamon SAP Ariba

Job description

We are seeking a highly experienced Senior Mainframe CICS System Administrator to administer, support, and optimize enterprise IBM z/OS mainframe environments. The ideal candidate will have extensive experience managing CICS Transaction Server, z/OS systems programming, CICSPlex SM, JCL, RACF, VSAM, and production support in mission-critical environments. This role requires strong troubleshooting, performance tuning, system maintenance, and automation experience supporting large-scale banking, insurance, or utility organizations.

Requirements

15+ years of experience administering IBM Mainframe environments.
Strong hands-on experience with IBM CICS Transaction Server (TS 5.3/5.5/5.6).
Extensive knowledge of z/OS, MVS, JES2, and UNIX System Services (USS).
Experience creating and maintaining CICS Regions, CSD, and resource definitions using CEDA, CEMT, and CICS Explorer.
Hands-on experience with CICSPlex SM administration and workload management.
Strong knowledge of JCL, PROC libraries, GDGs, SORT utilities, IDCAMS, IEBGENER, and IEFBR14.
Experience with TSO/ISPF, SDSF, IOF, File-AID, SPUFI, and QMF.
Strong knowledge of VSAM (KSDS, ESDS, RRDS), SMS, DFSMS, DFHSM, zFS, and storage management.
Experience administering RACF security, started task IDs, dataset security, and keyring management.
Experience with SMP/E, including PTF, APAR, RSU installation, and maintenance.
Experience supporting DB2, IMS, and IBM MQ integrated CICS environments.
Knowledge of CA7/CA Workload Automation or Tivoli Workload Scheduler (TWS).
Experience using monitoring tools such as OMEGAMON, RMF, SMF, NetView, and IBM Health Checker.
Strong troubleshooting skills for CICS regions, JCL failures, storage issues, and system performance.