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Mainframe Programmer Jobs in California (NOW HIRING)

Calance US

Mainframe Developer $66.50

Torrance, CA

$66.65/hr

We are hiring Mainframe Developer $66.50 for a Contract position in Torrance, CA CALL US NOW for immediate consideration! Click Apply on Web or Apply Now to view our recruiter s contact info and ...

Futran Tech Solutions Pvt. Ltd.

Mainframe Developer

Irvine, CA · On-site

$52.50 - $67.75/hr

Mainframe Developer Location: Irvine, CA * The preferred candidate will have a Bachelor's Degree in Computer Science and experience as a Sr.Cobol Developer. * Experience with Fujitsu NetCobol or ...

LinQ Global Group.

Mainframe Developer with MMIS

Sacramento, CA · On-site

$53.25 - $68.50/hr

* We need a Mainframe developer specializing in Medicaid management, maintaining and modernizing legacy state Medicaid Management Information Systems (MMIS). Roles heavily focus COBOL, JCL and IDMS or ...

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How much do mainframe programmer jobs pay per hour?

As of Jul 21, 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 is mainframe developer salary?

The salary for a mainframe developer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and certifications. Senior roles or those with specialized skills in COBOL, JCL, or mainframe environments may earn higher compensation. Many employers also offer benefits such as health insurance and retirement plans.

Is mainframe developer a good career?

Mainframe developers design, maintain, and update large-scale legacy systems using languages like COBOL and tools such as JCL. The role offers stable employment opportunities, especially in finance and government sectors, with competitive salaries and demand for specialized skills. However, it requires ongoing learning of mainframe technologies and certifications to stay current in the field.

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 tech jobs pay $400,000 a year?

Mainframe programmers with extensive experience, specialized skills in COBOL, and certifications can earn salaries approaching or exceeding $400,000 annually, especially in senior or leadership roles within large financial or government organizations. High compensation often depends on expertise, project complexity, and the ability to manage critical legacy systems.

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.

Can mainframe be replaced by AI?

Mainframe programmers work with large-scale, legacy systems that often require specialized knowledge of COBOL, JCL, and mainframe environments. While AI can automate certain tasks like code analysis and testing, it is unlikely to fully replace mainframe programmers due to the complexity, stability, and critical nature of mainframe systems that demand expert oversight and maintenance.

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 July 2026, with employment types broken down into 87% Full Time, 4% Part Time, 1% Temporary, and 8% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% 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

Re-posted 18 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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