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Mainframes Developer Jobs in California (NOW HIRING)

Akraya Inc.

BIDW SAS Developer

Oakland, CA · On-site

... , Creative and Marketing talent. Akraya has extensive experience supporting Fortune 500 and hot ... This is a mainframe-centric position and really needs someone familiar with mainframe SAS. Having ...

YO AI Labs

COBOL Developer - Remote

Palo Alto, 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

iSpace, Inc

Senior Mainframe COBOL Developer

Los Angeles, CA · On-site

$52.75 - $68/hr

We are Seeking a Senior Mainframe COBOL Developer with a strong background in enterprise financial systems. The ideal candidate will support mission-critical mainframe applications, troubleshoot ...

InterSources Inc

Sr. Mainframe Developer

Newport Beach, CA · On-site

$52.75 - $67.75/hr

They are seeking a Senior Mainframe Developer to support and maintain applications, handle operational changes, and resolve incidents while contributing to problem identification and root cause ...

West Advanced Technologies

Mainframe Operator

Downey, CA · On-site

$50.75 - $65/hr

The Information Technology Mainframe Operator communicates with system programmers, who assist the operator in determining the proper course of action, and with the production control analyst, who ...

ClifyX

MainFrame OS Developer - Torrance, CA

Torrance, CA · On-site

$50.75 - $65.25/hr

ClifyX is seeking a MainFrame OS Developer for a long-term project in Torrance, CA. The role requires strong analytical skills and experience in various mainframe technologies, focusing on the ...

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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 Programmer

Downey, CA • On-site

West Advanced Technologies (WATI)
Computer and Electronic Product Manufacturing • 1 - 10 employees
Learn more about West Advanced Technologies (WATI)external

Full-time

Re-posted 13 days ago

Job description

Mainframe Programmer
Downey, CA
12+ months
Description:
Mainframe Systems Programmer/DBA is responsible for leading and/or supporting the most complex database upgrade projects, modification, installation, testing, implementation, maintenance and enhancements of new or existing system software products. This classification must plan, install, configure, test, implement and manage core database products, software products in support of the County's database architecture and business needs. Special organizational or functional industry position titles for Systems Programmer/DBA include, but are not limited to, DB2 Systems Programmer/DBA, IMS Systems Programmer/DBA and ADABAS/NATURAL Systems Programmer/DBA.
Required Skills:
The Mainframe Systems Programmer/DBA for Legacy Systems manages different types of databases, such as hierarchical (IMS), relational (DB2), and file-based (ADABAS), and is responsible for planning and upgrading the database environments on a County-established basis; verifying the health of all the databases; database administration technical consulting for application and operations teams for the purpose of project planning/development; maintenance on production database systems; performance of technical reviews for existing systems that utilize one of the following database management systems (DBMS): ADABAS, DB2 or IMS; performance of evaluations for the purposes of selecting new or fine-tuning existing DBMS software; consultation with project development teams to provide recommendations on database design; development of logical and physical database designs; creation of overviews of logical database designs; creation of physical databases; database capacity planning; development and use of backup and recovery procedures for databases; database performance monitoring; database space monitoring; database reorganizations; database replication; database compression and database partitioning. The following technology skill sets are required to perform in this classification. IBM: Z/OS, IMS, DB2, ADABAS, SMP/E, JCL, IMS DB/DC, CICS, ACF2, ASSEMBLER/COBOL/REXX, IBM FILE MANAGER, DELTA/IMS, NATURAL/ SUPERNAT, ENTIREX, CA SPOOL, IMS & DB2 BMC Tools, N20/TRIM.
CICS and IMS Installation using SMP/E. IMS DBA Skills, BMC DELTA/IMS, MAXIUM REORG, TMON for CICS, DADS, BMC PDF. ASSEMBLER Skills to rewrite old IMS and CICS exits,
Must have a minimum of seven (7) years of experience as a Systems Programming/ DBA, with at least three (3) years of that experience in a lead role.
CICS and IMS program products upgrade experience along with rewriting old Assembler code. IMS DBA skills such as defining new databases, new transactions, performing SYSGEN, DBDGEN, ACBGEN when required.
Bachelor's degree in an IT-related or engineering field.
Regards
Naresh Damagalla
West Advanced Technologies, Inc
E: naresh.d@wati.com

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