Your Complete Guide to Finding a Mainframe Job in 2025
The best job boards, remote opportunities, and entry-level programs.
Explore open positions for z/OS developers, administrators, analysts, operators, and more.
Common questions about Backbone Jobs and how we help you find your next role.
Employers hiring for people with expertise in z/OS also frequently require knowledge of Mainframe, IBM Z, COBOL, and DB2. This is based on data from over 222 z/OS listings.
Based on 83 job openings, the average salary for z/OS professionals is $121,532. Specific salaries vary depending on experience and role.
z/OS is IBM’s flagship mainframe operating system, evolving from earlier systems such as OS/390. It was designed to manage large-scale workloads with high availability, workload management, and advanced security.
z/OS remains central to enterprise mainframe environments, supporting COBOL, PL/I, Java, and modern DevOps tooling. It is widely used in financial services, government, healthcare, and large-scale transaction processing environments where uptime and data integrity are critical.
The demand for z/OS professionals remains steady. Companies like Kyndryl, ensono, JPMorganChase, and Rocket Software together with 106 more are actively hiring in the space.
z/OS expertise is in demand globally. These are the 5 countries with the most z/OS job listings.
Insights related to the expertise required for this role.
The best job boards, remote opportunities, and entry-level programs.