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Mainframe System Programmer Jobs in California (NOW HIRING)

WATI

Mainframe Operator

Downey, CA · On-site

$50.75 - $65/hr

The Information Technology Mainframe Operator starts and stops system tasks, monitors the system consoles for unusual conditions, and works with the system programming and production control staff to ...

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Mainframe System Programmer information

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$57

$77

How much do mainframe system programmer jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for mainframe system 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 are the key skills and qualifications needed to thrive as a mainframe system programmer?

To thrive as a Mainframe System Programmer, you need deep knowledge of mainframe operating systems (such as z/OS), programming languages like COBOL or Assembler, and a degree in computer science or a related field. Familiarity with mainframe tools (e.g., IBM ISPF, JCL, SMP/E) and certifications such as IBM Certified System Programmer are typically required. Analytical thinking, problem-solving, and effective communication are crucial soft skills for diagnosing issues and collaborating with IT teams. These skills are vital to ensure the stability, security, and efficiency of critical enterprise computing environments.

What are some common challenges mainframe system programmers face when supporting legacy systems?

Mainframe System Programmers often encounter challenges such as integrating modern applications with legacy mainframe environments, ensuring system security while maintaining uptime, and troubleshooting complex issues that span both old and new technologies. They may also face difficulties due to limited documentation or retiring expertise as experienced colleagues leave the workforce. Staying current with evolving mainframe tools and best practices helps address these challenges and keeps systems running smoothly.

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

AspectMainframe System ProgrammerMainframe Application Developer
Required CredentialsCertifications in mainframe systems, such as IBM Certified System ProgrammerProgramming certifications, often in COBOL, Java, or other languages
Work EnvironmentOperate primarily on mainframe hardware, focus on system setup and maintenanceDevelop and modify applications running on mainframes
Employer & Industry UsageUsed by organizations with large-scale legacy systems, banking, insuranceDevelops business applications for mainframe environments in similar industries

While both roles work within mainframe environments, Mainframe System Programmers focus on system setup, maintenance, and optimization, whereas Mainframe Application Developers concentrate on creating and updating applications that run on mainframes. Understanding these differences helps in choosing the right career path or job search focus.

What is a mainframe system programmer?

Mainframe system programmers are IT professionals who specialize in installing, configuring, maintaining, and optimizing mainframe computer systems. They are responsible for the underlying software infrastructure, such as operating systems (like IBM z/OS), network configurations, and middleware. Their work ensures that mainframe environments run efficiently, securely, and with minimal downtime, supporting critical applications for large organizations. System programmers also troubleshoot complex issues and implement updates or enhancements as needed.

What are popular job titles related to Mainframe System Programmer jobs in California?

For Mainframe System Programmer jobs in California, the most frequently searched job titles are:

What job categories do people searching Mainframe System Programmer jobs in California look for?

The top searched job categories for Mainframe System Programmer jobs in California are:

What are popular job titles related to Mainframe System Programmer jobs in CA?

For Mainframe System Programmer jobs in CA, the most frequently searched job titles are:

Mainframe System Programmer jobs near you
Infographic showing various Mainframe System Programmer job openings in California as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 13% Part Time, 2% Temporary, and 2% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $119,422 per year, or $57.4 per hour.

Mainframe Systems Programmer / DBA

HonorVet Technologies

Downey, CA • On-site

$56.75 - $72.25/hr

Other

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

HonorVet Technologies is a Service Disable Veteran-Owned IT staffing firm, ISO 9001 and ISO 27001 certified, working with federal agencies, state governments, and Fortune 500 enterprise clients across the US. What makes us different isn''t a tagline; it''s the way we work. We don''t forward resumes and hope for the best. We take the time to understand where a professional like you is headed and only reach out when we genuinely believe there''s a fit worth exploring.
Title: Mainframe Systems Programmer / DBA
Location: Downey, CA – Onsite
Duration: 12+ Months
100% onsite with approximately 10% travel to local data centers.
 
Job Description:
We are seeking a senior Mainframe Systems Programmer/DBA to support complex database and mainframe system software projects, including installation, configuration, upgrades, testing, implementation, maintenance, and performance optimization.
 
Key Responsibilities:
  • Manage and support IBM z/OS database environments including DB2, IMS, and ADABAS.
  • Perform database upgrades, administration, performance monitoring, capacity planning, backup/recovery, replication, and reorganization.
  • Support logical and physical database design and provide technical guidance to application and operations teams.
  • Work with mainframe system software, networking, hardware, and data center environments.
  • Support migrations, cabling, and infrastructure upgrades at data centers as needed.
 
Required Skills:
  • 7+ years of Mainframe Systems Programming/DBA experience, including 3+ years in a lead role.
  • Strong IBM z/OS, DB2, IMS, ADABAS, SMP/E, and JCL experience.
  • Experience with CICS, IMS DB/DC, ACF2, REXX/COBOL/Assembler and mainframe tools.
  • 5+ years within the last 8 years of z/OS Networking, HCD, IODF, z/OSMF, LU 6.2, and mainframe hardware experience.
  • 5+ years of DS8884 and TS7760C hardware management experience.
  • Bachelor''s degree in IT, Computer Science, Engineering, or related field.
  • Valid driver''s license and reliable vehicle required for occasional data center travel.
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About HonorVet Technologies

Sourced by ZipRecruiter

HonorVet Technologies, located in Fairfield, NJ, US, is a technology-driven company with a unique dimension - enhancing veteran engagement in the workforce. Founded with the goal of supporting and preserving professional veterans while satisfying the IT and professional needs of businesses, HonorVet Technologies brings a particular focus to diversity and veteran hiring, making it a standout player in the IT and Staffing industries. Functioning as a veteran-driven community entity, the firm offers IT staffing, bespoke development, and consulting services, with the aim of connecting talents with IT-related job opportunities.

Industry

Recruiting and staffing services

Company size

201 - 500 Employees

Headquarters location

Fairfield , NJ, US

Year founded

2015

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