We are looking for an experienced Mainframe I/O Configuration Specialist with strong expertise in IBM Z mainframe hardware and I/O configuration.

The ideal candidate will be responsible for designing, maintaining, and implementing mainframe I/O configurations, supporting hardware upgrades, and ensuring infrastructure stability across enterprise environments.

Key Responsibilities :

- Design, configure, and maintain IBM Z mainframe I/O infrastructure.

- Manage channel paths, control units, DASD, tape devices, and FICON connectivity.

- Develop, update, and maintain IOCDS definitions using HCD and IOCP.

- Support CPC hardware upgrades, processor activations, and LPAR configuration activities.

- Plan and execute hardware migrations, data centre relocations, and site-swapping activities.

- Validate production IPL readiness and coordinate system activation procedures.

- Work with storage, network, and infrastructure teams to ensure reliable connectivity.

- Support disaster recovery planning, GDPS, and high-availability configurations.

- Follow ITIL change management processes and maintain technical documentation.

- Coordinate with vendors and infrastructure teams during hardware implementation.

Required Skills :

- Strong experience with IBM Z Mainframe I/O Configuration.

- Hands-on expertise in HCD, IOCP, and IOCDS generation.

- Knowledge of FICON architecture, channel path management, DASD, and tape infrastructure.

- Experience with CPC hardware design, IPL planning, and hardware migration.

- Understanding of PR/SM, LPAR configurations, and IBM Z processor upgrades.

- Familiarity with GDPS, disaster recovery, and Parallel Sysplex environments.

- Knowledge of FICON Directors, SAN connectivity, and enterprise storage platforms.

- Good troubleshooting, documentation, communication, and coordination skills.

Good to Have :

- Exposure to IBM DS8000 and enterprise storage technologies.

- Familiarity with HMC and z/OS system activation procedures.

- Knowledge of ITIL change management and infrastructure governance.

- Exposure to automation and configuration management tools