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Mainframe Support Jobs in California (NOW HIRING)

Triunity Software

Mainframe Developer

Los Angeles, CA · On-site

$100K - $110K/yr

Collaborate with cross-functional teams to support business and technical requirements * Monitor mainframe performance and implement tuning improvements * Participate in system migrations, upgrades ...

iSpace, Inc

Senior Mainframe COBOL Developer

Los Angeles, CA · On-site

$52.75 - $68/hr

The ideal candidate will support mission-critical mainframe applications, troubleshoot production issues, and develop enhancements for high-volume transaction processing systems. Candidates should be ...

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Mainframe Support information

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How much do mainframe support jobs pay per hour?

As of Aug 14, 2026, the average hourly pay for mainframe support in California is $52.68, according to ZipRecruiter salary data. Most workers in this role earn between $46.49 and $59.81 per hour, depending on experience, location, and employer.

What is a mainframe support?

A Mainframe Support job involves maintaining, troubleshooting, and optimizing mainframe systems to ensure smooth operations. Responsibilities typically include monitoring system performance, resolving technical issues, applying software updates, and ensuring data security. Mainframe Support professionals work with legacy systems, batch processing, and various programming languages like COBOL or JCL. Their role is critical in industries like banking, healthcare, and government, where mainframes handle large-scale transactions and data processing.

What are the key skills and qualifications needed to thrive in mainframe support, and why are they important?

To thrive as a Mainframe Support professional, you need a solid understanding of mainframe operating systems (such as z/OS), basic programming skills, and troubleshooting abilities, typically supported by a degree in computer science or equivalent experience. Proficiency with tools like IBM ISPF, SDSF, JCL, and familiarity with monitoring and batch processing tools, as well as certifications like IBM Certified System Administrator, are often expected. Strong analytical thinking, communication, and teamwork skills are crucial for effectively addressing technical issues and collaborating with cross-functional teams. These abilities ensure prompt issue resolution and maintain the stability and reliability of critical business systems.

What are the typical daily responsibilities of a mainframe support?

Mainframe Support professionals typically monitor system performance, respond to incidents or service requests, and perform routine maintenance to ensure mainframe systems run smoothly. Their day may include troubleshooting job failures, updating software or system configurations, and working with application teams to resolve integration or data transfer issues. They often participate in on-call rotations and collaborate closely with other IT teams, such as network or security specialists. These responsibilities are essential to minimize downtime and maintain uninterrupted business operations.

What skills are needed for mainframe support?

Mainframe support requires strong knowledge of mainframe operating systems such as z/OS, proficiency in programming languages like COBOL and JCL, and experience with troubleshooting hardware and software issues. Familiarity with tools like IBM Debug Tool and knowledge of database management systems such as DB2 are also important. Certifications like IBM Certified System Programmer can enhance job prospects.

Is mainframe support still in demand?

Mainframe support professionals are still in demand due to the continued reliance of large organizations on mainframe systems for critical operations. Skills in COBOL, JCL, and mainframe troubleshooting remain valuable, especially in finance, government, and insurance sectors where legacy systems are prevalent.

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

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

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

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

Mainframe Support jobs near you
Infographic showing various Mainframe Support job openings in California as of August 2026, with employment types broken down into 1% As Needed, 73% Full Time, 20% Part Time, 2% Temporary, and 4% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $109,572 per year, or $52.7 per hour.

Mainframe Support Analyst

Sidram Technologies

San Bernardino, CA • On-site

Contractor

Re-posted 10 days ago

Job description

Job Title: Mainframe Support Analyst
Location: San Bernardino, CA – Onsite
This is support postion L2 AND L3 

Job Description:

 The Mainframe Support Analyst will provide L2/L3 technical support for IBM z/OS mainframe applications, ensuring stability, performance, and timely resolution of incidents across non production and production environments. The role is critical for batch operations, DB2 support, deployment activities, and root cause analysis, particularly in large retail and supply chain transformation programs.

 Mainframe Application & Production Support (L2/L3)

·         Provide end to end support for mainframe applications running on IBM z/OS.

·         Analyze and resolve incidents related to JCL abends, DB2 errors, data issues, and code defects.

·         Perform root cause analysis by reviewing COBOL, DB2 programs, and batch execution logs.

·         Support production and non production environments, ensuring SLA adherence.

Batch Processing & Deployment

·         Build and maintain batch jobs by copying and parameterizing JCLs across environments.

·         Schedule, automate, and monitor end to end batch cycles.

·         Resolve batch failures and performance issues.

·         Support code promotion and deployment activities across test and production environments.

·         Manage dataset setup, environment parameterization, and deployment prerequisites.

 DB2 DBA & Data Support

·         Perform DB2 L2/L3 support activities including:

·         Creation, alteration, and maintenance of DB2 objects.

·         Plan and package creation, binding, and rebinding.

·         DB2 utilities such as UNLOAD, LOAD, RUNSTATS, and REORG.

·         Coordinate with RACF/security teams to ensure proper DB2 access and controls.

·         Perform DB2 backups, restores, and image copy management to support testing needs.

CICS, MQ & File Transfers

·         Support CICS applications by navigating screens and analyzing logs.

·         Understand and troubleshoot MQ message flows and integrations.

·         Manage Connect:Direct file transfers between systems and support batch file movements.

 Automation & Continuous Improvement

·         Analyze and enhance existing REXX scripts for automation.

·         Identify opportunities to automate repetitive support tasks (batch scheduling, deployments, retrofits).

·         Support environment retrofits such as DB2 structural changes, static data updates, and package rebinds.

 Required Skills & Experience

·         Mainframe Technologies: IBM z/OS, COBOL, JCL

·         Databases: DB2 (L2/L3 support, utilities, performance tuning basics)

·         Middleware: CICS, IBM MQ (working knowledge)

·         Batch & Scheduling: CA 7 / ESP or equivalent schedulers

·         Automation: REXX scripting

·         Security: RACF (working knowledge)

·         Experience: 5–10+ years in Mainframe Application Support / Operations

·         Domain: Retail / Supply Chain experience is strongly preferred

 Nice to Have

·         Experience supporting large retail transformation or supply chain modernization programs

·         Exposure to mainframe modernization or automation initiatives

·         Strong documentation and SOP creation skills

 Role Level

·         L2 / L3 Support Analyst

·         Onshore

Rachael

IT Services | Development | Staffing

URL: http:/www.sidramtech.com |

Email: rachael@sidramtech.com  

Direct: 4705239688

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