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Cobol Mainframe Jobs in California (NOW HIRING)

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 ...

WATI

Mainframe Operator

Downey, CA · On-site

$50.75 - $65/hr

Mainframe Operator Location: Downey, CA Duration: 12 months Description: The Information Technology ... AIX 6. Cobol

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 ...

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Cobol Mainframe information

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$9

$52

$71

How much do cobol mainframe jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for cobol mainframe in California is $52.68, according to ZipRecruiter salary data. Most workers in this role earn between $46.49 and $59.81 per hour, depending on experience, location, and employer.

What is a COBOL Mainframe?

COBOL Mainframe jobs involve programming, maintaining, and supporting legacy business applications that run on mainframe computers using the COBOL (Common Business-Oriented Language) programming language. These roles are critical in industries like banking, insurance, and government, where mainframes still process large volumes of transactions. Typical responsibilities include developing new features, debugging existing code, and ensuring system reliability. Professionals in these positions often work with batch processing, databases like DB2, and tools such as JCL (Job Control Language).

What are the key skills and qualifications needed to thrive as a COBOL Mainframe developer?

To thrive as a COBOL Mainframe Developer, you need strong programming skills in COBOL, knowledge of mainframe operating systems (such as IBM z/OS), and experience with databases like DB2, often supported by a degree in computer science or a related field. Familiarity with tools such as JCL (Job Control Language), CICS, and version control systems is important, and some roles may require certifications in mainframe technologies. Analytical thinking, problem-solving, and effective communication are essential soft skills to efficiently troubleshoot legacy systems and collaborate with cross-functional teams. These capabilities ensure the reliable maintenance, enhancement, and modernization of critical business applications that many organizations still depend on.

What are some typical challenges faced by COBOL Mainframe developers, and how can they be addressed?

COBOL Mainframe developers often work with legacy systems that can be complex and lack modern documentation, making troubleshooting and updates challenging. Collaborating with cross-functional teams to understand business logic, as well as investing time in code analysis tools and documentation, can help bridge knowledge gaps. Additionally, adapting to evolving business requirements while maintaining system stability is crucial, so strong communication skills and attention to detail are essential for success in this role.

What is the difference between Cobol Mainframe vs Cobol Developer?

AspectCobol MainframeCobol Developer
CredentialsTypically requires mainframe-specific certifications and experienceOften requires programming certifications and knowledge of COBOL
Work EnvironmentMainframe systems in large enterprise data centersVariety of environments including mainframes, servers, or cloud platforms
Industry UsageFinancial, insurance, government sectorsFinancial, retail, healthcare, and other industries
Job FocusMaintaining and operating mainframe systemsDeveloping, testing, and updating COBOL applications

While Cobol Mainframe specialists focus on maintaining and operating legacy mainframe systems, Cobol Developers primarily work on creating and updating COBOL applications across various environments. Both roles require knowledge of COBOL, but their daily tasks and work settings differ significantly.

Are Cobol Mainframe jobs still in demand?

Cobol mainframe jobs remain in demand in industries such as banking, finance, and government, where legacy systems are still operational. Many organizations seek experienced Cobol programmers for maintenance, modernization, and integration projects, often requiring knowledge of mainframe environments and tools like JCL and DB2.

Is the Cobol mainframe still used?

Cobol mainframes are still in use today, especially in large financial institutions, government agencies, and legacy systems that require reliable transaction processing. Many organizations continue to maintain and update Cobol applications, and skills in Cobol and mainframe environments remain valuable for maintaining these systems.

What are the most commonly searched types of Cobol Mainframe jobs in California?

The most popular types of Cobol Mainframe jobs in California are:

What are popular job titles related to Cobol Mainframe jobs in California?

For Cobol Mainframe jobs in California, the most frequently searched job titles are:

What job categories do people searching Cobol Mainframe jobs in California look for?

The top searched job categories for Cobol Mainframe jobs in California are:

What cities in California are hiring for Cobol Mainframe jobs?

Cities in California with the most Cobol Mainframe job openings:

Cobol Mainframe jobs near you
Infographic showing various Cobol Mainframe job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% Remote job distribution, with an average salary of $109,572 per year, or $52.7 per hour.

Mainframe Application Programmer

West Advanced Technologies (WATI)

Downey, CA • On-site

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Position: Mainframe Application Programmer
Location: Downey, CA
Duration: 12 months
Mandatory Skills:
  • The Senior Application Programmer for Mainframe Systems will possess knowledge and experience in applications software development principles and methods sufficient to participate in the design, development, testing and implementation of new or modified applications software; organization's operational environment; software design principles, methods and approaches; principles, methods and procedures for designing, developing, optimizing and integrating new and/or reusable systems components; pertinent government regulations; infrastructure requirements, database management principles and methodologies, including data structures, data modeling, data warehousing and transaction processing; functionality and operability of the current operating environment; systems engineering concepts and factors such as structured design, supportability, reliability, scalability and maintainability; optimization concepts and methods; establish and maintain cooperative working relationships with those contacted in the course of the work; and speak and write effectively and prepare effective reports.
  • Strong analytical and troubleshooting skills in an IMS/Cobol mainframe environment.
  • This classification must have a minimum of seven (7) years of experience in electronic data processing systems design and programming with one or more of the software set forth below. LANGUAGES: COBOL, Natural/ SuperNatural, IMS/DB/DC, DB2/SQL, Assembler, SAS, CICS; MF FOCUS; TOOLS/UTILITIES: MVS JCL, MVS TSO/ISPF, IBM OPTIM, FILE Manager, SPUFI, ICEMAN/ICETOOLS, SORT, VSAM, CLIST, FTP, DYL260/280, CA Gen (CoolGen), CA Endevor, CA Spool, CA OM Web Viewer, IBM Websphere, Debugger, N2O; DATABASES: DB2, IMS, ADABAS, FOCUS; OS: z/OS; OTHER: EntireX, ASP, HTML, Cloverleaf.

Experience Preferred:
  • Strong foundational experience with large-scale complex IMS/COBOL mainframe applications. Candidate must possess strong IMS batch experience and have knowledge of creating IMS test databases on-demand, along with creation of IMS/COBOL batch jobs to load and test data.

Education Required:
This classification requires the possession of a bachelor's degree in an IT-related or Computer Science field. Additional qualifying experience may be substituted for the required education on a year-for-year basis.
Regards,
Sangeetha
West Advanced Technologies, Inc.
Serving government agencies for 22 Years
E: sangeetha.p@wati.com, D: 279 895 6797
www.wati.com

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