Location : Chennai

Experience : 5+ Years

Job Summary

Key Responsibilities

- Administer and maintain IBM Mainframe zOS environments.
- Manage GDPS and Parallel Sysplex setup, configuration, and maintenance.
- Perform IPL/POR activities and support system automation initiatives.
- Handle installation, maintenance, upgrades, and migration of z/OS and associated products.
- Monitor and optimize system performance, capacity utilization, and resource consumption.
- Manage RACF security administration and privilege audits.
- Support disaster recovery planning, testing, and DR drill execution.
- Troubleshoot and resolve complex L3 production issues and critical escalations.
- Maintain system availability and ensure compliance with service-level agreements.
- Work closely with customers, infrastructure teams, vendors, and project stakeholders.
- Develop and maintain operational procedures, technical documentation, and standards.
- Support ongoing and upcoming infrastructure projects, upgrades, and transition activities.

Mandatory Skills

- Strong hands-on experience in zOS System Administration .
- Experience with GDPS / Parallel Sysplex Setup and Maintenance .
- Expertise in IPL / POR Procedures and Mainframe Automation .
- Strong knowledge of JES2, TSO/ISPF, DFSMS, VTAM, SMP/E, HMC, and HCD.
- Hands-on experience with RACF Administration and Security Auditing .




- Strong scripting skills in REXX, CLIST, and JCL.
- Experience in Mainframe Capacity Planning and Performance Tuning.
- Expertise in Disaster Recovery Setup and DR Drill Execution .
- Experience with Mainframe Migration, Version Upgrades, and Maintenance Activities.
- Strong troubleshooting skills with experience handling critical production incidents and escalations.

Preferred Skills

- Knowledge of ACF2 security administration.
- Experience with monitoring tools such as OMEGAMON, MainView, and SysView.
- Experience in DASD storage management and DFHSM.
- Experience in MIPS optimization, software rationalization, and specialty engines.

Job Types : Full-time, Permanent

Pay: ₹800,000.00 - ₹1,400,000.00 per year

Advantages :

- Health insurance
- Provident Fund

Ability to commute/relocate:

- Chennai, Tamil Nadu: Reliably commute or planning to relocate before starting work (required)

Application Question(s):

- What is your current CTC in lacs per annum?
- What is your expected CTC in lacs per annum?
- Are you an Immediate joiner? If not, then specify your notice period.

Experience :

- Mainframe zOS Administration: 5 years (required)
- GDCP/Sysplex setup: 5 years (required)

Location :

- Chennai, Tamil Nadu (required)

Work Location: In person

📌 Mainframe Zos Administrator (Chennai)
🏢 Sunware Technologies Private
📍 Chennai