Mainframe Administrator - z/OS (4-6 yrs)

Job Description :

We are seeking a skilled Mainframe Administrator - z/OS with 4-6 years of experience in managing and supporting complex Mainframe environments. The ideal candidate will have expertise in Mainframe migrations, LPAR/MIPS management, datacenter migration, performance management, and backup/restore operations. This role requires a deep understanding of networking, load balancing, DNS, and IIS, along with strong troubleshooting capabilities.

Key Responsibilities:

- Install, configure, and support Mainframe LPARs and MIPS.

- Provide ongoing maintenance, troubleshooting, and optimization of the Mainframe environment.

- Perform capacity planning and performance tuning for optimal system efficiency.

- Support Mainframe migrations, including LPAR and MIPS reallocation.

- Ensure compliance with security and regulatory requirements related to the Mainframe environment.

- Manage Mainframe backup and restore operations, ensuring business continuity.

- Support Mainframe tape backup and recovery procedures.

- Troubleshoot and resolve backup/restore failures in coordination with vendors.

- Plan and execute Mainframe datacenter migration activities.

- Support disaster recovery (DR) planning and implementation.

- Design and implement Mainframe datacenter architecture based on business needs.

- Maintain a strong understanding of networking, DHCP, DNS, and load balancing.

- Support network configurations related to Mainframe LPARs and remote administration.

- Work with IIS for application hosting and management.

- Collaborate with vendor partners to manage Service Level Agreements (SLAs).

- Work with vendors to improve reporting, operations, and policies.

- Provide insights and recommendations for improving vendor performance.

- Perform remote administration of MIPS/LPARs.

- Troubleshoot Mainframe performance issues, network latency, and system failures.

- Ensure high availability and reliability of Mainframe services.

Required Skills & Expertise:

- Mainframe Support & Administration (z/OS)

- LPAR Management & MIPS Administration

- Mainframe Migrations & Datacenter Migration

- Mainframe Backup & Restore (Tape-based backup, DR recovery)

- Networking (DHCP, DNS, Load Balancing, IIS)

- Capacity & Performance Management

- Remote Administration & Troubleshooting

- Vendor Management & SLA Monitoring

- Experience with IBM z Systems & z/OS administration.

- Knowledge of IBM Mainframe tools (RACF, JES, VTAM, TCP/IP, CICS, DB2, MQ).

- Familiarity with automation tools for Mainframe operations.

- Certifications in z/OS administration or Mainframe operations are a plus.

- Strong problem-solving and analytical skills.

- Ability to work independently and in a team.

- Excellent communication and vendor management skills.

- Strong documentation and reporting capabilities.