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z/OS

IT Infrastructure and Networking

z/OS is IBM's flagship 64-bit operating system for its mainframe computers (IBM Z series), widely used by large enterprises such as banks, insurers, and government agencies for mission-critical transaction processing and batch workloads. It supports technologies like COBOL, CICS, and DB2, and emphasizes high availability, security, and massive scalability. Mainframe systems programmers and administrators specialize in z/OS to maintain legacy and modern enterprise computing infrastructure.

z/OS in the job market

Last checked October 28, 2026

Open roles
8

on Career App

Employers
5

hiring for it

Median pay
—

not enough disclosed

Disclose pay
—

of these roles

Open roles requiring z/OS (8)

The Home Depot

Staff Systems Engineer (Remote)

The Home Depot

Full-time · GEORGIA - VIRTUAL - GA01 · $80,000 – $160,000 · Remote

This Staff Systems Engineer role leads a team designing and maintaining The Home Depot's infrastructure, balancing hands-on technical work with mentoring junior engineers and architecting enterprise solutions. The position suits experienced systems professionals who want to grow into a technical leadership capacity while working on large-scale infrastructure challenges.

Listed on The Home Depot’s careers site · Apply there ↗

Rocket Software

Senior Principal Software Engineer

Rocket Software

United States · $143,000 – $193,050

A hands-on technical leader role guiding the evolution of enterprise workload automation and batch processing solutions across hybrid cloud and mainframe environments. This position suits experienced architects comfortable mentoring teams while shaping product strategy and integrating modern technologies like AI and containerization into legacy-dependent platforms.

Listed on Rocket Software’s careers site · Apply there ↗

Mainframe Systems Administrator

Auto-Owners Insurance

Full-time · Lansing, MI

A mainframe systems administrator role supporting z/OS systems at an insurance company, with flexibility to work from home after initial training. This suits someone with z/OS experience and a track record coordinating technical projects who wants to optimize systems while mentoring others.

Listed on Auto-Owners Insurance’s careers site · Apply there ↗

American International Group

Privileged Access Management Engineer

American International Group

A Privileged Access Management Engineer implements and maintains CyberArk and related secrets management solutions to secure privileged accounts and credentials across the enterprise. This role suits experienced PAM practitioners who can integrate applications with PAM tools, support adoption across teams, and help mature the organization's zero-trust security posture.

Listed on American International Group’s careers site · Apply there ↗

Broadcom Inc.

Senior Software Engineer

Broadcom Inc.

Plano, TX · $91,100 – $146,000

Broadcom seeks a software engineer to develop innovative solutions for their Datacom database product, a mission-critical system serving major financial and retail institutions on IBM mainframes. This role suits experienced developers comfortable with low-level systems programming, mainframe technologies, and agile collaboration.

Listed on Broadcom Inc.’s careers site · Apply there ↗

The Home Depot

Staff Systems Mainframe Engineer (Remote)

The Home Depot

Full-time · TEXAS - VIRTUAL - TX01 · $90,000 – $180,000 · Remote

A senior mainframe engineer role focused on designing, building, and supporting The Home Depot's z/OS infrastructure, particularly backfilling expertise in areas like Parallel Sysplex, scheduling, and security. This position suits experienced mainframe professionals who can operate independently across multiple systems and mentor junior engineers while reducing single-point-of-failure risks.

Listed on The Home Depot’s careers site · Apply there ↗

Broadcom Inc.

R&D Engineer Software 3

Broadcom Inc.

Warrenville, IL · $91,100 – $146,000

Broadcom's Mainframe Software Division seeks a Software Engineer to design and develop security solutions on the mainframe platform using Assembler. This role suits self-motivated engineers with deep mainframe expertise who want to modernize enterprise software in a collaborative, fast-paced environment.

Listed on Broadcom Inc.’s careers site · Apply there ↗

Broadcom Inc.

Mainframe Technical Support Engineer - Storage Management

Broadcom Inc.

$59,000 – $90,000

This role supports Broadcom's mainframe storage management software customers, diagnosing and resolving complex technical issues while serving as a bridge between customer operations and the development team. It suits someone with deep mainframe systems expertise and storage platform experience who enjoys troubleshooting in a customer-facing environment.

Listed on Broadcom Inc.’s careers site · Apply there ↗

Asked for alongside z/OS

Measured from the 8 open roles that name z/OS — not from a curated list.

Employers hiring for z/OS

5 in total, most open roles first.

Related skills

Curated neighbors in the taxonomy, whether or not employers ask for them together.

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