# z/OS

Skill · IT Infrastructure and Networking

Canonical page: https://career.thegoodapps.co/skills/z-os

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

- Open roles: 14
- Employers hiring: 3
- Last checked: September 13, 2026

## Asked for alongside z/OS

Measured from the 14 open roles that name z/OS, not from a curated list.

- [Job Control Language (JCL)](https://career.thegoodapps.co/skills/job-control-language-jcl) — 5 roles (35.7%)
- [IBM Db2](https://career.thegoodapps.co/skills/ibm-db2) — 4 roles (28.6%)
- [COBOL](https://career.thegoodapps.co/skills/cobol) — 3 roles (21.4%)
- [Jenkins](https://career.thegoodapps.co/skills/jenkins) — 3 roles (21.4%)
- [Linux](https://career.thegoodapps.co/skills/linux) — 3 roles (21.4%)
- [Python](https://career.thegoodapps.co/skills/python) — 3 roles (21.4%)
- [TSO/ISPF](https://career.thegoodapps.co/skills/tso-ispf) — 3 roles (21.4%)
- [Unix](https://career.thegoodapps.co/skills/unix) — 3 roles (21.4%)

## Roles that use z/OS

- [Software Engineer](https://career.thegoodapps.co/occupations/software-engineer) — 4
- [Technical Support Engineer](https://career.thegoodapps.co/occupations/technical-support-engineer) — 2
- [Product Owner](https://career.thegoodapps.co/occupations/product-owner) — 1
- [Solutions Architect](https://career.thegoodapps.co/occupations/solutions-architect) — 1

Related skills: [COBOL](https://career.thegoodapps.co/skills/cobol), [Job Control Language (JCL)](https://career.thegoodapps.co/skills/job-control-language-jcl), [TSO/ISPF](https://career.thegoodapps.co/skills/tso-ispf)

## Open roles requiring z/OS (14)

- [Mainframe Systems Administrator](https://career.thegoodapps.co/jobs/f10d857a-98db-45f3-8275-815f2f7adef7/mainframe-systems-administrator-at-auto-owners-insurance) at [Auto-Owners Insurance](https://career.thegoodapps.co/organizations/auto-owners-insurance) — Full-time, Lansing, MI
- [Privileged Access Management Engineer](https://career.thegoodapps.co/jobs/5068d5f4-97e1-4d0b-a1a8-c768501da981/privileged-access-management-engineer-at-american-international-group) at [American International Group](https://career.thegoodapps.co/organizations/american-international-group)
- [Senior Product Owner](https://career.thegoodapps.co/jobs/f0bf99d7-98a4-43d8-9f7f-c35d5d5c1691/senior-product-owner-at-broadcom-inc) at [Broadcom Inc.](https://career.thegoodapps.co/organizations/broadcom-inc) — $104,100 – $166,500
- [Mainframe z/VM System programmer](https://career.thegoodapps.co/jobs/282932e6-6923-44e6-b141-b54a451a4230/mainframe-z-vm-system-programmer-at-broadcom-inc) at [Broadcom Inc.](https://career.thegoodapps.co/organizations/broadcom-inc) — Full-time, $108,000 – $172,800
- [Staff Technical Support Engineer - Mainframe](https://career.thegoodapps.co/jobs/13aeb9bb-bada-4945-ae02-442081b793f6/staff-technical-support-engineer-mainframe-at-broadcom-inc) at [Broadcom Inc.](https://career.thegoodapps.co/organizations/broadcom-inc) — $88,300 – $141,300
- [Sr Mainframe Technical Consultant](https://career.thegoodapps.co/jobs/aceae9d4-c032-4211-8726-dde38c433c75/sr-mainframe-technical-consultant-at-broadcom-inc) at [Broadcom Inc.](https://career.thegoodapps.co/organizations/broadcom-inc) — $100,000 – $160,000
- [Mainframe QA Engineer](https://career.thegoodapps.co/jobs/6520c027-8c20-4a15-b34a-d2bf5114cf0c/mainframe-qa-engineer-at-broadcom-inc) at [Broadcom Inc.](https://career.thegoodapps.co/organizations/broadcom-inc) — $101,000 – $162,000
- [Senior Mainframe Software Engineer](https://career.thegoodapps.co/jobs/a73473a6-ddac-49b0-a744-3b9d8f6495af/senior-mainframe-software-engineer-at-broadcom-inc) at [Broadcom Inc.](https://career.thegoodapps.co/organizations/broadcom-inc) — Plano, TX
- [Senior Software Engineer (ICB3)](https://career.thegoodapps.co/jobs/28b1fe18-b5cc-4a6d-9ffe-25fd341e245b/senior-software-engineer-icb3-at-broadcom-inc) at [Broadcom Inc.](https://career.thegoodapps.co/organizations/broadcom-inc) — Plano, TX, $91,100 – $146,000
- [Mainframe Software Engineer](https://career.thegoodapps.co/jobs/176deac6-a424-48bd-afea-bd8127954697/mainframe-software-engineer-at-broadcom-inc) at [Broadcom Inc.](https://career.thegoodapps.co/organizations/broadcom-inc) — Plano, TX, $129,400 – $207,000

All 14 open roles: https://career.thegoodapps.co/jobs?skills=d4f396bb-f44f-483a-b1be-6f172dc8f13f