Mainframe Administrator

4 days ago

Chennai India Viraaj HR Solutions Private Limited Full time

Job Description About The Opportunity A staffing partner serving enterprise IT infrastructure teams across banking, insurance, and government sectors is hiring an on-site Mainframe Systems Administrator in India. This role focuses on managing mission-critical z/OS platforms that power high-volume transaction processing, ensuring availability, security, and performance for production and disaster-recovery environments. Primary Title Mainframe Systems Administrator Role & Responsibilities - Administer and maintain z/OS production, DR and non-production systems to achieve SLA-driven availability and stability. - Perform system installs, maintenance and patching using SMP/E; manage system libraries and APAR/PTF deployments. - Monitor and tune system and workload performance (JES2/JES3, CICS, DB2); troubleshoot incidents and lead root-cause analysis. - Implement and enforce RACF security controls: user/profile management, access reviews, and security incidents remediation. - Manage backup, restore and storage policies using DFSMShsm; execute DR tests and recovery procedures. - Automate routine tasks and runbooks using REXX/CLIST/USS, coordinate changes with middleware, application and operations teams during deployments and upgrades. Skills & Qualifications Must-Have - Proven hands-on experience administering IBM z/OS-based mainframe environments in production. - Strong operational expertise in JCL, CICS and DB2 administration and troubleshooting. - Practical knowledge of RACF security administration and compliance controls. - Experience with SMP/E for PTF/APAR application and system patching. - Hands-on use of TSO/ISPF and DFSMShsm for storage management and backups. - Ability to automate operational tasks (REXX/CLIST/Unix System Services) and maintain clear runbooks and run schedules. - On-site availability in India and experience working in 24x7 production support models; familiarity with incident and change-management processes. Preferred - Experience with IBM MQ, CA7 or BMC Control-M scheduling and monitoring tools. - Familiarity with enterprise monitoring suites (BMC MainView, CA SYSVIEW) and performance tuning tools. - Prior exposure to modernization projects: z/OS upgrades, workload automation, or migration to hybrid infra. Benefits & Culture Highlights - Work on mission-critical mainframe estates that serve large enterprisesstrong visibility and ownership. - Structured operational processes with opportunities for certification and technical upskilling. - On-site role with stable shift patterns, industry-standard benefits and an emphasis on reliability engineering. Location: On-site India. Recruiter: Viraaj HR Solutions. Skills: smp/e,cics,mainframe admin,z/os

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