Mainframe z/OS System Administrator / System Programmer

Tata Consultancy Services; Taguig; On-site; PHP 900,000 - 1,500,000; Full time

Job summary

Tata Consultancy Services is seeking a Senior Mainframe z/OS Architect with 5+ years of hands-on and design-level experience across HW, SW, OS, ISV, storage, and security. You will engage with a multi-site data center environment (5K MIPS+), support IBM and OEM/ISV products, and drive DR readiness and performance tuning.

The role emphasizes SLA-driven architecture proposals, licensing, and ROI planning, aligning with complex mainframe workloads and enterprise-scale needs.

Qualifications

• Extensive hands-on architectural experience with IBM mainframe platforms.
• Experience across multi-site data centers and large MIPS environments.
• Knowledge of DR planning, zoning, and mainframe performance tuning.

Responsibilities

• Provide design/architect level expertise for Mainframe z/os environments.
• Support IBM and OEM/ISV products and DR readiness activities.
• Derive SLAs and propose architectures to meet goals.
• Oversee capacity planning, licensing, and TCO/ROI considerations.

Skills

Mainframe z/OS

z15/z16/z17 hardware

JES2/JES3

DFSMS suite

RMF/SMF

SMP/E

HCD/HCM

GDPS/GDDR

ISV/Broadcom/CA products

Mainframe DR/BCP planning

CICS

DB2/IMS/MQ/WAS

CA7/TWS/CA-ESP

Capacity planning

Performance tuning

Tools

Broadcom CA

BMC AMI Suite MainView

Strobe

SAS

Job description

L2 or L3 capability, from 5-7 to 30 years of experience

Note – This JD requirement is a bit vast. Hence it is NOT essential that a candidate needs to have all the skills mentioned in this JD. A majority coverage/subset of the below skills is OK.

(Kindly share the JD with the candidates if they need to understand more on expectations)

Summary of key responsibilities

Minimum 5-7+ years onwards of BOTH broad and in-depth hands-on technical and design/architect level experience in Mainframe z/OS

Experience in a multi-site (multiple Data Center) Mainframe shop of minimum 5K MIPS and above.

Worked with Client/Customer, OEM & ISV Vendors, Business Partners related to all aspects of the Mainframe Platform.

Support various Mainframe Software, both IBM and OEM/ISV products

Mainframe High Availability & Disaster Recovery

Derive realistic Mainframe SLAs and design / propose architecture meeting those SLAs goals

Mainframe Licensing, TCO and ROI planning

Years of Experience

Minimum 5-7+ years upto 30 years of hands-on technical and Architect experience on the Mainframe Platform as a whole (HW, SW, NW, OS, ISV, Storage and Security)

Technical requirements

IBM z15, z16 & z17 Mainframe HW and Parallel Sysplex/GDPS-GDDR Setup

JES2/JES3, DFSMS suite, SNA/VTAM & TCP/IP

PARMLIB, PROCLIB, RMF/SMF, SMP/E, HCD, HCM, IODF, Dumps & Traces

Install/Upgrade/Patch/Configure ISV Products from Broadcom CA, BMC, Rocket SW, Software AG, LRS, Precisely etc…

OmegaMon, BMC AMI Suite MainView CA View, basic knowledge on SAS, Strobe, APA

IBM and EMC Disk and Tape Storage hardware, software and replication.

Mainframe Capacity Planning and Performance Tuning, Buffer Pool Tuning,

IBM and EMC HW and Replication GDPS, GDDR methodology. Hitachi optional.

Experience in Disaster Recovery setup and conducting DR drills, RTO, RPO.

Knowledge on Mainframe DB2, IMS, MQ, CICS, WAS, BMC Control-M, TWS, CA7, CA-ESP

Mainframe Data Center Physical Planning and Design

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