Your Complete Guide to Finding a Mainframe Job in 2025
The best job boards, remote opportunities, and entry-level programs.
Browse open positions for z/OS developers, administrators, analysts, and operators in United States.
.png&w=48&q=75){kind=small}
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 224 z/OS listings.
Based on 67 job openings in United States, the average salary for z/OS professionals is $133,062. 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 107 more are actively hiring in the space.
These cities in United States have the most job openings requiring z/OS expertise.
Insights related to the expertise required for this role.
The best job boards, remote opportunities, and entry-level programs.