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Mainframe System Programmer Jobs in California (NOW HIRING)

West Advanced Technologies

Mainframe Admin

Downey, CA · On-site

Required Skills: 1. Five (5) years of experience within the last seven (7) years with IBM zEnterprise mainframe implementing MultiPath Channel (MPC) alternate routing links in a systems programming ...

eTeam

Mainframe Developer

Concord, CA · On-site

$53.75 - $69.25/hr

Senior Mainframe COBOL Developer Location: Brookfield, WI OR Portland, OR/ Minneapolis, MN/ Irving ... Perform coding, debugging, and enhancements to existing systems * Conduct unit testing, integration ...

Deloitte

Mainframe Developer

San Jose, CA · Hybrid

$57.50 - $73.75/hr

Develop, test, and deploy code changes for claims processing systems based on technical ... As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate ...

Deloitte

Mainframe Developer

Fresno, CA · Hybrid

$48.75 - $62.50/hr

Develop, test, and deploy code changes for claims processing systems based on technical ... As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate ...

Deloitte

Mainframe Developer

Costa Mesa, CA · Hybrid

$52.50 - $67.50/hr

Develop, test, and deploy code changes for claims processing systems based on technical ... As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate ...

Deloitte

Mainframe Developer

San Francisco, CA · Hybrid

$57.75 - $74.25/hr

Develop, test, and deploy code changes for claims processing systems based on technical ... As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate ...

WATI

Mainframe Admin

Norwalk, CA · On-site

Mainframe Admin Location: Norwalk, CA Duration: 12 Months Minimum Skills: * Bachelor of Science ... Computer Science, Information Technology, Information Systems, Computer Engineering, Software ...

Deloitte

Mainframe Developer

Sacramento, CA · Hybrid

$52.25 - $67.25/hr

Develop, test, and deploy code changes for claims processing systems based on technical ... As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate ...

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Mainframe System Programmer information

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How much do mainframe system programmer jobs pay per hour?

As of Jul 5, 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, and why are they important?

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 are mainframe system programmers?

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.
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Mainframe System Programmer jobs near you

Mainframe Modernization Consultant

Futran Tech Solutions Pvt. Ltd.

Encino, CA • On-site

Other

Posted 4 days ago

Job description

Mainframe Modernization Consultant

Summary Support modernization initiatives by analyzing mainframe systems and implementing migration strategies. Key Responsibilities:

  • Conduct application assessments and identify modernization opportunities.
  • Execute code conversion and integration with modern platforms.
  • Collaborate with architects and delivery teams for smooth transition.
  • Prepare technical documentation, estimate, and assist in testing phases.
  • Mentor consultants and oversee technical execution.

Required Skills:

  • Expertise in COBOL, JCL, VSAM, DB2, Assembler.
  • Knowledge of modernization frameworks and tools (Micro Focus, BluAge, Heirloom) including AI/GenAI based tooling/use case.
  • Exposure to APIs, microservices, and cloud integration (AWS, Azure, GCP).
  • Strong problem-solving and analytical skills.
  • Familiarity with DevOps, CI/CD, containerization (Docker, Kubernetes).
  • Should have executed at least one (1) mainframe modernization assessment and one (1) mainframe modernization program.
  • Strong leadership and communication skills.

Apply