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Mainframe Programmer Jobs in California (NOW HIRING)

Xpertiz Inc

Mainframe developer

Sacramento, CA · On-site

$53.25 - $68.50/hr

Job Title : Mainframe Developer Location : Sacramento, CA, USA (Locals Preferred) Job Type : Hybrid Visa Type: Citizen-EAD/-EAD Duration: 12+ Months Job Summary We are seeking an experienced ...

Deloitte

Mainframe Developer

San Francisco, CA · On-site

$57.75 - $74.25/hr

Deloitte is a leading professional services firm that seeks an experienced Mainframe Developer to work collaboratively in a technology-driven environment. The role involves daily development ...

Deloitte

Mainframe Developer

Fresno, CA · Hybrid

$48.75 - $62.50/hr

As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands of travel. The Project Delivery Talent ...

Deloitte

Mainframe Developer

San Francisco, CA · Hybrid

$57.75 - $74.25/hr

As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands of travel. The Project Delivery Talent ...

Deloitte

Mainframe Developer

Costa Mesa, CA · Hybrid

$52.50 - $67.50/hr

As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands of travel. The Project Delivery Talent ...

Deloitte

Mainframe Developer

San Jose, CA · Hybrid

$57.50 - $73.75/hr

As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands of travel. The Project Delivery Talent ...

Deloitte

Mainframe Developer

Sacramento, CA · Hybrid

$52.25 - $67.25/hr

As an experienced Mainframe Developer ,you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands of travel. The Project Delivery Talent ...

AgreeYa Solutions

Mainframe Systems Programmer

Downey, CA

$56.75 - $72.25/hr

Mainframe Systems Programmer/DBA is responsible for leading and/or supporting the most complex database upgrade projects, modification, installation, testing, implementation, maintenance and ...

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How much do mainframe programmer jobs pay per hour?

As of Jun 8, 2026, the average hourly pay for mainframe programmer in California is $53.41, according to ZipRecruiter salary data. Most workers in this role earn between $46.49 and $62.40 per hour, depending on experience, location, and employer.

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

To thrive as a Mainframe Programmer, you need a solid understanding of COBOL, JCL, DB2, and general mainframe architecture, often supported by a degree in computer science or related experience. Familiarity with tools like IBM z/OS, TSO/ISPF, and source control systems such as Endevor or Changeman is typically required. Strong problem-solving skills, attention to detail, and effective communication set top performers apart in this role. These abilities are critical for maintaining legacy systems, ensuring data integrity, and supporting business-critical operations in large organizations.

What are some common challenges Mainframe Programmers face when working on legacy systems?

Mainframe Programmers often encounter challenges such as understanding complex, decades-old codebases written in languages like COBOL or Assembler, and integrating these systems with modern technologies. Documentation may be sparse or outdated, requiring strong problem-solving and analytical skills to decipher business logic. Additionally, coordinating with cross-functional teams—including business analysts, testers, and infrastructure specialists—is essential to ensure smooth system updates and migrations. Adaptability and effective communication are key to overcoming these obstacles and supporting mission-critical applications.

What are Mainframe Programmers?

Mainframe Programmers are specialized software developers who design, write, test, and maintain code for mainframe computer systems. These professionals primarily work with legacy programming languages such as COBOL, JCL, and sometimes Assembler, to ensure critical business applications run smoothly and securely. They are often employed in industries like banking, insurance, and government where mainframe systems remain essential for processing large volumes of transactions. Mainframe Programmers also troubleshoot system issues, optimize performance, and may assist in system upgrades or migrations.

What is the difference between Mainframe Programmer vs Mainframe Developer?

AspectMainframe ProgrammerMainframe Developer
Primary RoleWriting, testing, and maintaining mainframe codeDesigning and developing mainframe applications and systems
Skills & CertificationsCOBOL, JCL, DB2, certifications in mainframe technologiesSimilar skills, often with additional focus on system design and architecture
Work EnvironmentMainframe environments in banking, finance, governmentSame environments, with broader development responsibilities
Job FocusCode implementation and troubleshootingApplication development and system integration

While both roles work within mainframe environments and share skills like COBOL and JCL, Mainframe Programmers primarily focus on coding and maintenance, whereas Mainframe Developers are involved in designing and developing new applications and systems. The roles often overlap, but the developer role typically encompasses a broader scope in application lifecycle management.

What Does a Mainframe Programmer Do?

As a mainframe programmer, your job is to design and program applications for mainframe computers, which are powerful machines that help to run many commercial and industrial processes. In this role, you may conduct an analysis of existing software to ensure it is as error-free as possible, help test new software, and implement software in a way that makes it easy for users to access. Mainframe programmers often use coding languages like COBOL, C++, SQL, Java, and CLIST when programming software. Somewhat unusually, most companies prefer to stick with specific coding languages even when they are not necessarily the best language for the job in order to reduce complexity and the risk of errors.

More about Mainframe Programmer jobs
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Mainframe Programmer jobs near you
Infographic showing various Mainframe Programmer job openings in California as of May 2026, with employment types broken down into 88% Full Time, 4% Part Time, 7% Contract, and 1% Nights. Highlights an 90% Physical, 4% Hybrid, and 6% Remote job distribution, with an average salary of $111,084 per year, or $53.4 per hour.
Mainframe Programmer

Mainframe Programmer

West Advanced Technologies (WATI)

Downey, CA • On-site

Full-time

Posted 5 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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