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Mainframes Developer Jobs in California (NOW HIRING)

hyrusinc

Mainframe Developer

Torrance, CA · On-site

$51.25 - $65.75/hr

Mainframe Developer - COBOL/CICS (Automotive Finance) Location: Torrance, CA (Hybrid - 4 days) Employment Type: Contract to Hire We are seeking an experienced Mainframe Developer with strong ...

HyrUS Inc.

Mainframe Developer

Torrance, CA · On-site

$50.25 - $64.75/hr

Mainframe Developer - COBOL/CICS (Automotive Finance) Location: Torrance, CA (Hybrid - 4 days) Employment Type: Contract to Hire We are seeking an experienced Mainframe Developer with strong ...

Veriipro

Senior Mainframe Developer

Torrance, CA · On-site

Seeking an experienced Mainframe Developer with strong expertise in COBOL, CICS, DB2, JCL, and IBM MQ to support enterprise applications in an Automotive Finance environment. The role includes ...

New

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 ...

Triunity Software, Inc.

Mainframe Developer

Los Angeles, CA · On-site

$52.75 - $68/hr

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 ...

Broadcom

Senior Mainframe DevOps Architect

San Jose, CA · On-site

$151K - $206K/yr

About the Role We are seeking a Senior Mainframe DevOps Architect to lead solution design and own end-to-end architecture for enterprise customers-translating complex business requirements into ...

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 ...

YO AI Labs

COBOL Developer - Remote

Los Angeles, CA · Remote

$100 - $150/hr

COBOL Developer - Remote Role Type: Contractor Location: Remote Role Overview We are seeking ... In this role, you will apply your deep knowledge of COBOL, mainframe environments, and legacy ...

New

YO AI Labs

COBOL Developer - Remote

San Francisco, CA · Remote

$100 - $150/hr

COBOL Developer - Remote Role Type: Contractor Location: Remote Role Overview We are seeking ... In this role, you will apply your deep knowledge of COBOL, mainframe environments, and legacy ...

New

YO AI Labs

COBOL Developer - Remote

San Jose, CA · Remote

$100 - $150/hr

COBOL Developer - Remote Role Type: Contractor Location: Remote Role Overview We are seeking ... In this role, you will apply your deep knowledge of COBOL, mainframe environments, and legacy ...

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Mainframes Developer information

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

Is a mainframes developer a good career?

A mainframes developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the ongoing need to maintain and upgrade existing mainframe applications. However, the number of new positions is limited compared to emerging technologies, and skills in mainframe modernization are increasingly valued.

What does a mainframes developer do?

A mainframes developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of large-scale enterprise systems, frequently working with legacy code and mainframe-specific tools in a structured environment.

What are popular job titles related to Mainframes Developer jobs in California?

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

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

The top searched job categories for Mainframes Developer jobs in California are:

What cities in California are hiring for Mainframes Developer jobs?

Cities in California with the most Mainframes Developer job openings:

Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in California as of August 2026, with employment types broken down into 79% Full Time, 8% Part Time, and 13% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution.

Mainframe Developer

Torrance, CA • On-site

hyrusinc
See more jobs at hyrusincexternal

$51.25 - $65.75/hr

Contractor

Posted 5 days ago

Job description

Job description
Job Title: Mainframe Developer - COBOL/CICS (Automotive Finance)
Location: Torrance, CA (Hybrid - 4 days)
Employment Type: Contract to Hire
Job Description:
We are seeking an experienced Mainframe Developer with strong expertise in COBOL/CICS, DB2, JCL, and MQ, along with domain experience in Automotive Finance. The role involves application development, production support, and performance optimization across multiple enterprise-level systems.
Key Responsibilities:
Provide application development and production support for large-scale mainframe applications
Troubleshoot and resolve production issues, including batch and online abends
Analyze and optimize daily/monthly batch processes to improve efficiency and reduce processing windows
Perform impact analysis across multiple systems and platforms
Deliver technical design, development, and estimation documentation
Participate in on-call support for batch processes during off-hours
Required Skills:
Strong hands-on experience with:
COBOL
CICS
DB2
JCL
IBM MQ
Experience in mainframe development + production support environment
Strong troubleshooting/debugging skills for batch and online systems
Familiarity with unit testing practices
Preferred Skills:
Experience in Automotive Finance industry
Exposure to FIS Systematics (A plus but not Mandatory)
Soft Skills:
Strong communication and collaboration skills
Ability to work in a fast-paced production environment
Interpersonal style aligned with client culture
Skills
Mandatory Skills : .Net Core, Microservices