Senior Mainframe Engineer – z/OS Upgrades & DR Expert

Tata Consultancy Services Limited; Atlanta (GA); On-site; USD 100,000 - 130,000; Full time

Benefits offered by this job

Discretionary Annual Incentive

Comprehensive Medical Coverage: Health

Family Leave

401K Plan

Job summary

Tata Consultancy Services Limited in Atlanta, GA is seeking a Senior Engineer to lead z/OS upgrades and oversee enterprise mainframe operations. The role requires deep hands-on z/OS installation, configuration, and maintenance experience and hands-on IBM Z hardware knowledge.

You will install and support ISV products, manage IOCP/HMC configurations, monitor health with RMF/SMF/TMON, and participate in 24/7 on-call support. Salary range is $100,000–$130,000 per year with comprehensive benefits.

Qualifications

• Deep hands-on experience with z/OS installation, configuration and maintenance.
• Proven experience with major z/OS upgrades.
• Extensive experience installing and supporting ISV products (Broadcom/CA, BMC, IBM, Rocket).
• Hands-on IBM Z hardware knowledge including CPCs, LPAR, HMC/SE, IOCDS/IODF, FICON, OSA, and CF structures.
• Familiarity with OPS/MVS, System Automation, Automation Point and alert/monitoring integration.
• Exposure to ZEKE Scheduler for JES/workload issue diagnosis.
• Experience in large enterprises or regulated environments.

Responsibilities

• Plan, prepare, and execute z/OS operating system upgrades.
• Apply IBM PTFs and APARs to maintain system integrity.
• Monitor z/OS health, performance, and resources with RMF/SMF/TMON.
• Install, configure, upgrade, and maintain ISV products (Broadcom/CA, BMC, IBM, Rocket).
• Manage HW Configuration Definitions, IOCP, and HMC management; administer WLM.
• Collaborate with vendors for problem resolution and licensing.
• Ensure ISV product compatibility with z/OS environment.
• Maintain critical datasets and provide expert-level mainframe incident support.
• Analyze performance data and optimize resource usage; participate in 24/7 on-call.

Skills

z/OS knowledge

z/OS upgrades

ISV product installation

Mainframe hardware (IBM Z)

HMC operation

WLM tuning

Automation tools

ZEKE Scheduler

DR planning

System monitoring (RMF/SMF/TMON)

Tools

RMF

SMF

TMON

SAS

IOCDS

IODF

JES

Job description

Tata Consultancy Services Limited in Atlanta, GA is seeking a Senior Engineer to lead z/OS upgrades and oversee enterprise mainframe operations. The role requires deep hands-on z/OS installation, configuration, and maintenance experience and hands-on IBM Z hardware knowledge.

You will install and support ISV products, manage IOCP/HMC configurations, monitor health with RMF/SMF/TMON, and participate in 24/7 on-call support. Salary range is $100,000–$130,000 per year with comprehensive benefits.