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Cobol Mainframe Developer 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 ... IBM mainframe COBOL, CICS, MQ, DB2, JCL * On-call support nightly batch production support REQUIRED ...

Triunity Software

Mainframe Developer

Los Angeles, CA · On-site

$100K - $110K/yr

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 ...

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 ... COBOL JCL DB2 VSAM • Working experience in IBM ZOS stack Compuware ISPW tools • Experience in ...

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Cobol Mainframe Developer information

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How much do cobol mainframe developer jobs pay per hour?

As of Aug 31, 2026, the average hourly pay for cobol mainframe developer in California is $54.56, according to ZipRecruiter salary data. Most workers in this role earn between $53.37 and $55.77 per hour, depending on experience, location, and employer.

What does a COBOL mainframe developer do?

As a COBOL mainframe developer, your primary responsibilities include designing new computer programs using the COBOL programming language. Your duties are to design, develop, and configure code for new programs, test these programs to make sure they function on the intended operating system, and implement adjustments needed. Once that process is complete, you launch the program for public or private use and provide support and upgrades to the user. You should have extensive knowledge and experience working with software development, and if you are working in IT for a company, you should be able to troubleshoot their current mainframe. Teaching others about what you have developed and making sure they understand how to use it are also your responsibility.

What does a COBOL mainframe developer do?

A COBOL Mainframe Developer is responsible for designing, developing, testing, and maintaining applications that run on mainframe computers using the COBOL programming language. These developers often work with legacy systems in industries like banking, insurance, and government, ensuring that critical business processes continue to function smoothly. Their tasks may include writing new code, updating existing programs, debugging, and integrating mainframe applications with modern technologies. COBOL Mainframe Developers also collaborate with business analysts and other IT professionals to meet organizational needs and regulatory requirements.

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

To thrive as a COBOL Mainframe Developer, you need strong proficiency in COBOL programming, mainframe systems (such as IBM z/OS), and a background in computer science or a related field. Familiarity with tools like JCL, DB2, CICS, and source control systems, along with relevant certifications, is highly beneficial. Attention to detail, problem-solving abilities, and effective communication are crucial soft skills for diagnosing issues and collaborating with cross-functional teams. These competencies ensure reliability, accuracy, and efficiency in maintaining and modernizing critical legacy systems.

What are some typical challenges faced by COBOL mainframe developers when maintaining legacy systems?

Cobol Mainframe Developers often encounter challenges with outdated documentation, making it difficult to understand and modify legacy code. Integrating new technologies or adapting legacy systems to modern infrastructure can also be complex, requiring careful planning and testing. Additionally, communicating with business users to gather requirements and ensure system changes meet current needs is essential, as is collaborating with other IT professionals to manage dependencies and minimize downtime. Staying proactive about learning modernization tools and approaches can help address these challenges.
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Cobol Mainframe Developer jobs near you
Infographic showing various Cobol Mainframe Developer job openings in California as of August 2026, with employment types broken down into 36% Full Time, and 64% Contract. Highlights an 85% In-person, and 15% Remote job distribution, with an average salary of $113,494 per year, or $54.6 per hour.

Cobol Mainframe Developer

Los Angeles, CA • On-site

Software Technology Inc
See more jobs at Software Technology Incexternal

Full-time

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

Software Developer

Requires programming skills, involved in the development of software applications. Knowledge of programming languages to develop necessary specifications for the software by following the technical designs. In specific cases, knowledgeable on Agile/iterative development methodologies will be required (and called out).

Skills:

Cobol

JCL

Db2

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