Role : Mainframe ZOS

Experience : 7 to 15 years

Location : Bangalore/Mumbai

Keywords: Mainframe z/OS & Mainframe Storage Admin

Manage BAU (Business As Usual) Service Delivery for Mainframe OS/Storage in a Technical Capacity

This is for a pure Technical Hands-On role and not for a Team Lead Position

Work on Daily Basis with Client/Customer Mainframe OS-Storage SMEs/Peers

Work on MI (Major Incidents) / P1 (Priority-1) and lesser Tickets as a part of BAU Support

Work on Problem/RCA and Change/CMR Tickets during the weekends.

Provide Business hours support and then On-Call support as is the norm in BAU Service Delivery Role.

Primary requirements

- Experience to monitor, support and maintain mainframe DASD tools
- Monitor and manage storage performance
- Assign and initialize direct access storage volumes.
- Determine data set and volume placement
- Set and maintain direct access storage resource efficiency
- Maintain established direct access storage standards
- Suggest Best Practice standards
- Maintain space requirements according to Client’s forecasts
- Design, implement, and maintain all DASD pooling structures
- Perform catalog management
- Perform data migration management




- Provide support for all DASD related problems
- Perform regular direct-access storage backups
- Plan Hardware EOL Life Cycle management and Upgrades

Technical requirements

- Hands-on experience with z14/z15/z16 Mainframe HW and Sysplex Setup
- z/OS v2.x, JES2, DFSMS, VTAM, RACF/ACF2, TCP/IP, OMVS, RMF/SMF
- SMP/E, various ISV products, UserMods and Exits.
- IPL/POR procedures, various Mainframe Consoles
- Mainframe Tools – OMEGAMON, TEPS, Netview, SIEM
- Assembler, REXX, JCL and CA-OPS/MVS Automation,
- IODF/IOCDS, HCD/HCM, Mainframe Capacity Planning and Performance Tuning
- PARMLIB and PROCLIB concatenation, Memory Regions customization and maintenance
- Experience in Disaster Recovery setup and conducting DR drills.
- Experience in Mainframe MIPS Optimization, Software rationalization
- Hands-on experience with Hitachi VSP 5500, IBM DS8000, IBM TS7000, EMC-VMAX/PowerMax & DLm HW
- IBM-Metro/Global Mirror, Copy Services, EMC-SRDF, EMC-GDDR
- DFSMS suite, CA-1, IBM CSM
- Flash Copy, BCV-SnapVX, zDP, Secure Guarded Copy (SGC)

📌 Mainframe ZOS (Bengaluru)
🏢 Tata Consultancy Services
📍 Bengaluru