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Mainframe Systems Programmer Jobs in California (NOW HIRING)

AgreeYa Solutions

Mainframe Systems Programmer

Downey, CA

$56.75 - $72.25/hr

Mainframe Systems Programmer/DBA is responsible for leading and/or supporting the most complex database upgrade projects, modification, installation, testing, implementation, maintenance and ...

Vertisystem Inc.

Systems Programmer/DBA

Downey, CA

Downey, CA Duration: 12 months Position Description A Mainframe Systems Programmer/DBA is responsible for leading and/or supporting the most complex database upgrade projects, modification ...

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How much do mainframe systems programmer jobs pay per hour?

As of Jun 9, 2026, the average hourly pay for mainframe systems programmer in California is $57.41, according to ZipRecruiter salary data. Most workers in this role earn between $52.21 and $66.44 per hour, depending on experience, location, and employer.

What Does a Mainframe Systems Programmer Do?

As a mainframe systems programmer, your responsibilities are to maintain an organization’s server computer, also called a mainframe computer. Your duties include handling server configuration, as well as installing, upgrading, and customizing the operating system and other software necessary for running the server and its databases. You also work with other IT professionals with the planning of security measures to protect the mainframe and routinely perform tests for bugs and other security issues.

What are some common challenges Mainframe Systems Programmers face when maintaining legacy systems?

Mainframe Systems Programmers often encounter challenges related to supporting and upgrading legacy systems that may have limited documentation or use outdated programming languages. Navigating compatibility issues with newer hardware or software can require creative problem-solving and deep technical expertise. Additionally, ensuring system security and reliability while performing upgrades or patches involves careful planning and collaboration with other IT and business teams. Staying current with evolving mainframe technologies and practices is essential for long-term success in the role.

What is the difference between Mainframe Systems Programmer vs Mainframe Application Developer?

AspectMainframe Systems ProgrammerMainframe Application Developer
CredentialsTypically requires certifications like IBM Certified Systems ProgrammerOften requires programming certifications or specific language expertise
Work EnvironmentWorks primarily on system-level tasks, OS, and hardware interactionsFocuses on developing and maintaining applications on mainframe platforms
Employer & Industry UsageCommon in large enterprises with mainframe infrastructureAlso in large organizations, but more application-focused
Job FocusSystem configuration, performance tuning, and maintenanceApplication coding, testing, and deployment

The Mainframe Systems Programmer primarily manages system-level tasks, ensuring the mainframe environment runs efficiently, while the Mainframe Application Developer focuses on creating and maintaining applications. Both roles are essential in mainframe environments but differ in their technical focus and responsibilities.

What are Mainframe Systems Programmers?

Mainframe Systems Programmers are IT professionals responsible for installing, configuring, maintaining, and troubleshooting mainframe computer systems and software. They ensure that the mainframe environment runs efficiently, securely, and reliably, supporting critical business operations. Their duties often include system upgrades, performance tuning, applying patches, and collaborating with other IT teams to resolve complex technical issues. Mainframe Systems Programmers play a key role in organizations that rely on large-scale transaction processing, such as banks, insurance companies, and government agencies.

What are the key skills and qualifications needed to thrive as a Mainframe Systems Programmer, and why are they important?

To thrive as a Mainframe Systems Programmer, you need expertise in system programming, operating systems like z/OS, and strong problem-solving abilities, usually supported by a degree in computer science or related field. Familiarity with mainframe tools such as IBM z/OS utilities, JCL, REXX, and experience with system monitoring and performance tuning software are commonly required. Attention to detail, analytical thinking, and effective communication skills help ensure smooth collaboration and troubleshooting. These skills are essential to maintain, optimize, and secure critical enterprise computing environments that rely on mainframe infrastructure.
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Mainframe Systems Programmer jobs near you
Infographic showing various Mainframe Systems Programmer job openings in California as of May 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 100% In-person job distribution, with an average salary of $119,422 per year, or $57.4 per hour.
Mainframe Systems Programmer

Mainframe Systems Programmer

AgreeYa Solutions

Downey, CA

$56.75 - $72.25/hr

Other

Posted 8 days ago

Job description

AgreeYa is a global Systems Integrator and is seeking an experienced Mainframe Systems Programmer to join our growing team. Mainframe Systems Programmer/DBA is responsible for leading and/or supporting the most complex database upgrade projects, modification, installation, testing, implementation, maintenance and enhancements of new or existing system software products.

Experience Required:

This classification must have a minimum of seven (7) years of experience as a Systems Programming with at least three (3) years of that experience in a lead role.

Legacy Systems manages different types of databases, such as hierarchical (IMS), relational (DB2), and file-based (ADABAS).

Skill Required:

Strong experience with IMS DB/DC CICS ADABAS NATURAL N2O TRIM NATSECURITY.

The following technology skill sets are required to perform in this classification. IBM: Z/OS, IMS, DB2, ADABAS, SMP/E, JCL, IMS DB/DC, CICS, ACF2, ASSEMBLER/COBOL/REXX, IBM FILE MANAGER, DELTA/IMS, NATURAL/ SUPERNAT, ENTIREX, CA SPOOL, IMS & DB2 BMC Tools, N20/TRIM.

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