Description

You will manage and maintain IBM z/OS IMS environments, ensuring stability, availability, and performance for mission-critical systems.

This role is hybrid.

Responsibilities

• Install, configure, and maintain IMS DB and IMS TM subsystems on IBM z/OS, including version upgrades, maintenance, and patching.
• Manage IMS system definitions (DBDs, PSBs, ACB libraries) and tune buffer pools, parameters, and system resources for optimal performance.
• Monitor IMS database and transaction performance, proactively identifying and resolving bottlenecks using log analysis and dump reviews.
• Support IMS utilities, backup/recovery processes, and disaster recovery testing while ensuring seamless integration with z/OS, DB2, MQ, and CICS.
• Implement ITIL/ServiceNow change management processes and maintain accurate technical documentation and system configurations.

Required Skills

• 7+ years of hands-on experience with IBM z/OS operating system and IMS DB/TM administration.
• Deep knowledge of DBD/PSB/ACB management, IMS control regions, and transaction processing.
• Experience with buffer pool tuning, performance optimization, and IMS utilities.
• Strong troubleshooting skills, including dump analysis, log analysis, and abend resolution.
• Proven experience integrating IMS with DB2, CICS, MQ, and distributed systems.
• Familiarity with RACF security controls for IMS environments.
• Proficiency with SMP/E, JCL, TSO/ISPF, and SDSF.
• Understanding of Sysplex and high availability architectures.

Preferred Skills

• Exposure to IMS modernization, API enablement (z/OS Connect, REST), or automation tools (REXX, Ansible, z/OSMF).
• Experience with monitoring tools such as OMEGAMON, MainView, or RMF.

Key Skills

Education

Bachelor's degree