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Cobol Mainframe Developer Jobs in California (NOW HIRING)

Calance US

Mainframe Developer $66.50

Torrance, CA

$66.65/hr

Must have a stable work history** 5+ years recent/current experience as a Mainframe Developer with COBOL, CICS, MQ, DB2, and JCL. Experience working with Financial Services (banks, insurance ...

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 ...

New

WATI

Mainframe Operator

Downey, CA · On-site

$50.75 - $65/hr

The Information Technology Mainframe Operator communicates with system programmers, who assist the ... AIX 6. Cobol

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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 7, 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 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $113,494 per year, or $54.6 per hour.

COBOL Mainframe Programmer/Developer - Atlanta, GA - (JK)

Central Business Solutions Inc.

Newark, CA • On-site

$55 - $70.75/hr

Full-time

Re-posted 17 days ago

Job description

Job Summary:
Central Business Solutions Inc. is seeking an experienced COBOL Developer to support and enhance enterprise mainframe applications. The ideal candidate will work on maintaining legacy systems and developing new functionalities to support critical business operations.
Responsibilities:
• Develop, maintain, and enhance COBOL-based mainframe applications.
• Analyze business and technical requirements to implement system changes.
• Work with JCL, DB2, VSAM, CICS, and batch processing environments.
• Troubleshoot production issues, perform debugging, and provide system support.
• Participate in code reviews, testing, deployment, and documentation activities.
• Collaborate with cross-functional teams including analysts, QA, and support teams.
• Support system modernization and performance improvement initiatives.
Qualifications:
Required:
• Strong experience in COBOL programming on mainframe systems.
• Hands-on experience with JCL, DB2, CICS, VSAM, and batch jobs.
• Knowledge of SDLC, software maintenance, and production support processes.
• Ability to analyze and resolve complex technical issues.
• Good communication and teamwork skills.
Preferred:
• Experience in banking, insurance, healthcare, or financial services domains.
• Exposure to Agile methodologies and DevOps practices.
• Familiarity with mainframe modernization projects is a plus.
Company:
Central Business Solutions Inc.: Your Partner in Technology & Business Transformation CBSInfosys: 25+ years delivering integrated tech/business solutions. Founded in 2000, the company is headquartered in Newark, USA, with a team of 201-500 employees. The company is currently Growth Stage.

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