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# Mainframes Developer

- **Company:** SDH Systems LLC
- **Location:** Dallas, TX, United States
- **Contract:** Permanent contract
- **Skills:** CLIST, IBM Parallel Sysplex, Job Control Language (JCL), Rexx (Programming Language), Interactive System Productivity Facility (ISPF), Mainframes, Performance Tuning, Proprietary Software, Broadcom, System Programming, Z/OS, Data Storage Management
- **Published:** August 12, 2026
- **Apply:** https://www.dice.com/job-detail/25d87ac7-c293-42a8-948f-446f3722834b

## About the Role

12+ years of professional work experience as a Mainframe System Programmer in zOS & ISVs.

Technical key skills (Mandatory skills)

Expertise in performing SMP/E and Non-SMPE Installation of ISV products)

Expertise in IBM and Broadcom Software product Install and Upgrades

Mastery of z/OS system commands, utilities, and automation tools.

Operating system z/OS V2.5 upgrades or later with z/OSMF workflow execution.

IODF, HCD Skillset to add new devices.

Sysplex and config management (good to have)

Fluent in JCL and IBM Utilities (IEBGENER/IEBCOPY/AMASPZAP/DFDSS)

ISPF/TSO and other basic

Basic knowledge of REXX/CLIST

Designing project plan(upgrades, maintenance, decom) with task list for all stakeholders and communicating the timelines with delivery and customer.

## Description

Perform standard system programming activities like configuration, installation & maintenance using SMP/E, and vendor software installations in the mainframe environment.

Perform Operating System upgrade and RSU maintenance via z/OSMF Workflow.

Advanced System Management: Architect, install, and configure highly complex z/OS environments and third-party software.

Support Software Standardization and new Feature implementations.

Support other team: storage management, performance tuning, capacity planning, security, networking, and operating procedures from zOS perspective.

Work with Mainframe System Programmers staff across tracks to enhance the mainframe environment.

Assist team members to solve problems, make innovative improvements and make decisions.

Identify and implement system and process improvements in the z/OS environment Work with application support teams and other internal customers to facilitate business initiatives.


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