Enterprise Mainframe Expert

4 days ago


erode, India beBeeMainframe Full time

Mainframe Systems Specialist Job DescriptionWe are seeking an experienced Mainframe Systems Specialist to join our team. The ideal candidate will have expertise in designing, implementing, and maintaining enterprise-level system software in IBM mainframe environments.Key Responsibilities:System Installation, Maintenance & Upgrades:Install, upgrade, configure, and maintain z/OS and subsystems (JES2, RACF, CICS, DB2, IMS).Manage system updates, PTFs, APARs using SMP/E.Ensure system stability and compatibility across releases.Performance Tuning & Capacity Planning:Monitor and optimize CPU, memory, and I/O performance.Tune WLM, Sysplex, and critical components.Conduct capacity planning and recommend hardware upgrades.Security & Compliance:Administer RACF and enforce security policies.Ensure compliance with SOX, PCI-DSS, HIPAA.Apply security patches and mitigate vulnerabilities.Storage & Backup Management:Manage DFSMS, VSAM, HSM, and storage tools.Oversee backups, DR, and high-availability solutions.Optimize disk and tape storage usage.Incident Management & Troubleshooting:Diagnose and resolve system abends and bottlenecks.Analyze dumps, logs, and traces for root cause.Work with IBM support and vendors on complex issues.Automation & Scripting:Develop automation using REXX, JCL, CLIST, Ansible.Improve monitoring, job scheduling, and efficiency.Automate repetitive tasks to streamline processes.Disaster Recovery & High Availability:Implement and test DR plans for business continuity.Maintain Parallel Sysplex and failover configurations.Documentation & Knowledge Sharing:Maintain technical documentation and best practices.Mentor junior team members and share knowledge.



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