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Mainframe Jobs in California (NOW HIRING)

West Advanced Technologies

Mainframe Operator

Downey, CA · On-site

$50.75 - $65/hr

Mainframe Operator Location: Downey, CA Duration: 12 months Description: The Information Technology Mainframe Operator works under the direction of an Information Technology Systems Operations ...

Triunity Software

Mainframe Developer

Los Angeles, CA · On-site

$100K - $110K/yr

Triunity Software is looking for a talented Mainframe professional to join our growing team in Los Angeles, CA. This is an exciting opportunity to work on mission-critical systems and make a real ...

Accenture

Mainframe Specialist

Los Angeles, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, and RACF? We are looking for exceptional talent to ...

Accenture

Mainframe Specialist

Mountain View, CA · On-site

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, and RACF? We are looking for exceptional talent to ...

Accenture

Mainframe Specialist

San Francisco, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, and RACF? We are looking for exceptional talent to ...

Accenture

Mainframe Specialist

Irvine, CA · On-site

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, and RACF? We are looking for exceptional talent to ...

Accenture

Mainframe Specialist

Walnut Creek, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, and RACF? We are looking for exceptional talent to ...

Accenture

Mainframe Specialist

San Diego, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, and RACF? We are looking for exceptional talent to ...

Accenture

Mainframe Specialist

Sacramento, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, and RACF? We are looking for exceptional talent to ...

Sonsoft Inc

Mainframe Consultant

Irwindale, CA · On-site

At least 5 years of experience in Mainframe Technologies (COBOL, CICS, JCL, DB2) * At least 5 years of experience in handling reports and file systems in Mainframe * At least 3 years of experience in ...

Sonsoft Inc

Mainframe Consultant

Irwindale, CA · On-site

At least 5 years of experience in Mainframe Technologies (COBOL, CICS, JCL, DB2) * At least 5 years of experience in handling reports and file systems in Mainframe * At least 3 years of experience in ...

Info Way Solutions

mainframe developer to cloud

Fremont, CA · On-site

$53.75 - $69.25/hr

Info Way Solutions is seeking a Senior Mainframe Developer to facilitate the transfer of applications from mainframe to cloud environments. The role involves optimizing mainframe applications ...

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Mainframe information

See California salary details

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$52

$71

How much do mainframe jobs pay per hour?

As of Sep 8, 2026, the average hourly pay for mainframe 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?

Mainframes are powerful computers used mainly by large organizations for critical applications, bulk data processing, large-scale transaction processing, and enterprise resource planning. They are known for their reliability, scalability, and security, making them essential for industries like banking, healthcare, and government. Mainframes can handle thousands of users and transactions simultaneously, supporting the core operations of many businesses.

What are the key skills and qualifications needed to thrive as a mainframe developer, and why are they important?

To excel as a Mainframe Developer, a strong background in COBOL, JCL, mainframe operating systems (like z/OS), and database management is essential, often supported by a degree in computer science or a related field. Familiarity with tools such as IBM DB2, CICS, VSAM, and mainframe version control systems is typically required, and certifications like IBM Certified System Programmer can be advantageous. Analytical thinking, problem-solving abilities, and effective communication are important soft skills for identifying issues and collaborating with cross-functional teams. These skills ensure reliable maintenance, development, and modernization of mission-critical legacy systems that support large-scale business operations.

What are some typical challenges faced by mainframe professionals when integrating legacy systems with modern technologies?

Mainframe professionals often encounter challenges when integrating legacy systems with newer technologies, such as ensuring data compatibility, managing security protocols, and minimizing downtime during migration. These tasks require a deep understanding of both the existing mainframe architecture and the modern platforms being introduced. Collaboration with cross-functional teams—including application developers, security specialists, and project managers—is essential to ensure seamless integration and to address potential issues proactively. Staying updated on the latest integration tools and best practices also helps in overcoming these challenges efficiently.

What is the difference between Mainframe vs Mainframe Developer?

AspectMainframeMainframe Developer
Primary RoleMaintains and manages mainframe hardware and systemsDesigns, develops, and tests mainframe applications
Skills & CertificationsKnowledge of mainframe hardware, OS, and basic scriptingProficiency in COBOL, JCL, and mainframe programming languages
Work EnvironmentData centers, enterprise IT departmentsDevelopment teams within mainframe environments
Industry UsageUsed by organizations with legacy systemsDevelops and maintains those legacy systems

While Mainframe professionals focus on maintaining the hardware and system infrastructure, Mainframe Developers specialize in creating and updating mainframe applications. Both roles require knowledge of mainframe environments, but their responsibilities differ significantly within the same industry.

Is mainframe a good career option?

Mainframe careers involve working with large-scale computer systems used by many organizations for critical applications. The role typically requires knowledge of programming languages like COBOL, skills in system maintenance, and certifications such as IBM Certified System Programmer. It offers stable employment opportunities and competitive salaries due to the specialized skill set involved.
More about Mainframe jobs

What are the most commonly searched types of Mainframe jobs in California?

The most popular types of Mainframe jobs in California are:

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

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

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

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

What cities in California are hiring for Mainframe jobs?

Cities in California with the most Mainframe job openings:

Mainframe jobs near you
Infographic showing various Mainframe job openings in California as of September 2026, with employment types broken down into 68% Full Time, 22% Part Time, and 10% Contract. Highlights an 81% Physical, 6% Hybrid, and 13% Remote job distribution, with an average salary of $109,572 per year, or $52.7 per hour.

Mainframe Developer

Triunity Software, Inc.

Los Angeles, CA • On-site

$100 - $125/hr

Other

Medical

Re-posted 8 days ago

Job description

Benefits:

  • Bonus based on performance

  • Health insurance

  • Training & development


About the Role:

Triunity Software is looking for a talented Mainframe professional to join our growing team in Los Angeles, CA. This is an exciting opportunity to work on mission-critical systems and make a real impact in a dynamic, technology-driven environment. If you're passionate about mainframe technologies and ready to take your career to the next level, we want to hear from you!


Responsibilities:

  • Design, develop, and maintain mainframe applications and systems

  • Write and optimize COBOL, JCL, and other mainframe-based code

  • Perform system analysis, troubleshooting, and debugging of mainframe environments

  • Collaborate with cross-functional teams to support business and technical requirements

  • Monitor mainframe performance and implement tuning improvements

  • Participate in system migrations, upgrades, and modernization initiatives

  • Document technical specifications, processes, and procedures


Requirements:

  • Proven experience in mainframe development or administration (IBM z/OS preferred)

  • Proficiency in COBOL, JCL, CICS, DB2, or related mainframe technologies

  • Strong analytical and problem-solving skills in complex system environments

  • Experience with mainframe performance monitoring and tuning tools

  • Familiarity with SDLC methodologies and Agile development practices

  • Excellent communication and collaboration skills

  • Bachelor's degree in Computer Science, Information Technology, or equivalent experience

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About Triunity Software

Sourced by ZipRecruiter

Triunity is a Product Development, Staff Augmentation, and Consulting Services company providing solutions and services in North America. We provide IT services and technology solutions to various business verticals like Healthcare, Pharma, Banking, Finance, etc. Our goal is to develop a long-term partnership with businesses and help them get a competitive advantage by providing IT infrastructure and software platforms.

Industry

It services

Company size

11 - 50 Employees

Headquarters location

Iselin, NJ, US

Year founded

2021

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