JOB DESCRIPTION

z/VM and z/OS System Programmer

Role Overview

We are seeking an experienced z/VM and z/OS System Programmer to join our mainframe operations team. The successful candidate will be responsible for the end-to-end design, installation, configuration, and ongoing maintenance of mainframe systems software and hardware. This role demands a deep, comprehensive understanding of both z/VM and z/OS operating systems and their associated components, enabling mission-critical business continuity and performance.

Key Responsibilities

z/OS Responsibilities

•       Design, install, configure, and maintain z/OS operating system and related subsystems

•       Administer and manage Unix System Services (USS) environments on z/OS

•       Perform software installation, maintenance, and upgrades using SMP/E (System Modification Program/Extended)

•       Manage hardware configuration including HCD (Hardware Configuration Definition) and IODF definitions

•       Conduct capacity planning to ensure system resources meet current and future business demands

•       Monitor, analyze, and tune system performance to optimize throughput and response times

•       Provide installation, configuration, and support for ISV (Independent Software Vendor) products

•       Manage system catalogs, DASD, and storage management subsystem (SMS) policies

•       Collaborate with security teams on RACF administration and compliance requirements

z/VM Responsibilities

•       Install, configure, and maintain z/VM Control Program (CP) and Conversational Monitor System (CMS)

•       Administer RACF security on z/VM environments to ensure access control and audit compliance

•       Manage Group Control System (GCS) for SNA communications and VTAM support

•       Configure and maintain Remote Spooling Communications Subsystem (RSCS) for print and file transfer

•       Administer VM/VTAM for SNA network connectivity within the z/VM environment

•       Manage virtual machine definitions, guest operating system support, and resource allocation

•       Support Linux on IBM Z guest environments hosted on z/VM hypervisor

General Responsibilities

•       Troubleshoot and resolve complex system issues, outages, and performance bottlenecks

•       Develop and maintain system documentation, runbooks, and operational procedures

•       Participate in change management processes and maintenance windows

•       Work closely with application, network, storage, and security teams on cross-functional initiatives

•       Provide on-call support for critical mainframe incidents as needed

•       Mentor junior team members and contribute to knowledge-sharing initiatives

Required Qualifications

•       Bachelor''s degree in Computer Science, Information Technology, or a related field — or equivalent practical experience

•       Minimum 5 years of hands-on experience as a Mainframe Systems Programmer

•       Proven expertise in z/OS systems programming including USS, SMP/E, hardware configuration, and performance management

•       Strong working knowledge of z/VM components: CP, CMS, RACF, GCS, RSCS, and VM/VTAM

•       Experience with ISV product installation and support on z/OS

•       Solid understanding of mainframe hardware architecture (IBM Z series)

•       Familiarity with JCL, REXX, and mainframe scripting languages

•       Ability to interpret system logs, SMF data, and RMF/CMF performance reports

Salary : $60 - $63