Senior Mainframe Architect: z/OS & Networking Leader

TechDigital Group; Riverwoods (IL); On-site; USD 120,000 - 170,000; Full time

Job summary

TechDigital Group is seeking a senior z/OS System Programmer to lead installation, configuration, and upgrades of z/OS environments across development and production systems in our Riverwoods, IL facility.

You will design z/OS architecture, manage Sysplex integration, CFRM policies, and collaborate with application teams to ensure production stability and optimal performance. Strong leadership and deep z/OS expertise are essential.

Qualifications

• Experience with z/OS System Programming and mainframe architecture.
• Proficiency in Sysplex configuration, LPAR management, and system integration.
• Hands-on with SMP/E, IOCP, HCD, PARMLIB, ISV products, and z/OS releases.
• Knowledge of JCL, utilities, batch and online processing.

Responsibilities

• Lead installation, configuration, and upgrading of z/OS environments across development and production systems
• Design and manage z/OS architecture, Sysplex integration, CFRM policies
• Handle hardware and software upgrade projects, including datacenter migration and exit planning
• Perform performance analysis, tuning, capacity planning, and workload management (WLM)
• Monitor system software access, performance, and resource utilization
• Manage and maintain z/OS, JES3 environments and ISV software
• Work closely with application teams to ensure production stability and issue resolution
• Define and enforce security, access control, and software usage policies
• Implement and validate backup, recovery, and disaster recovery (DR) procedures
• Ensure high availability, system reliability, and environment stability
• Support incident/problem determination and resolution within SLA timelines
• Provide technical leadership, mentoring, and guidance to teams

Skills

z/OS expertise

Sysplex

CFRM policies

Tools

SMP/E

IOCP

HCD

PARMLIB

RSU

Job description

TechDigital Group is seeking a senior z/OS System Programmer to lead installation, configuration, and upgrades of z/OS environments across development and production systems in our Riverwoods, IL facility.

You will design z/OS architecture, manage Sysplex integration, CFRM policies, and collaborate with application teams to ensure production stability and optimal performance. Strong leadership and deep z/OS expertise are essential.