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Mainframe Software Developer Jobs in California (NOW HIRING)

Triunity Software

Mainframe Developer

Los Angeles, CA · On-site

$100K - $110K/yr

Triunity Software is looking for a talented Mainframe professional to join our growing team in Los Angeles, CA. This is an exciting opportunity to work on mission-critical systems and make a real ...

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 ...

WATI

Mainframe Operator

Downey, CA · On-site

$50.75 - $65/hr

The Information Technology Mainframe Operator communicates with system programmers, who assist the operator in determining the proper course of action, and with the production control analyst, who ...

Broadcom

R&D Software Engineer

San Jose, CA

Broadcom's Mainframe Software Division (MSD) is looking for a talented and motivated Software Engineer with a passion for building high quality applications using agile practices to join our ...

Broadcom

R&D Software Engineer

San Jose, CA

Broadcom's Mainframe Software Division (MSD) is looking for a talented and motivated Software Engineer with a passion for building high quality applications using agile practices to join our ...

Accenture

Mainframe Specialist

Los Angeles, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Accenture

Mainframe Specialist

San Diego, CA · On-site

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Accenture

Mainframe Specialist

Sacramento, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Accenture

Mainframe Specialist

Irvine, CA · On-site

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Accenture

Mainframe Specialist

Walnut Creek, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Accenture

Mainframe Specialist

Mountain View, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Accenture

Mainframe Specialist

San Francisco, CA

$70K - $196K/yr

About the Role Are you a seasoned Mainframe Specialist with deep, hands-on command of COBOL, JCL ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

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Mainframe Software Developer information

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$52

$71

How much do mainframe software developer jobs pay per hour?

As of Aug 6, 2026, the average hourly pay for mainframe software developer 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.

How does a mainframe software developer typically collaborate with cross-functional teams in a modern IT environment?

Mainframe Software Developers frequently work with cross-functional teams that include business analysts, system architects, QA testers, and DevOps engineers. Collaboration often involves participating in daily stand-ups, code reviews, and joint problem-solving sessions to ensure seamless integration of mainframe applications with newer technologies. Developers also play a key role in translating business requirements into robust mainframe solutions, and may be involved in mentoring junior developers or coordinating with offshore teams. This collaborative environment helps ensure that legacy systems remain aligned with evolving business needs and IT strategies.

What is a mainframe software developer?

A Mainframe Software Developer is an IT professional who designs, develops, tests, and maintains software applications that run on mainframe computers. These developers typically work with programming languages such as COBOL, JCL, and Assembler, and are responsible for ensuring the performance and reliability of critical business systems used by large organizations. Mainframe Software Developers often collaborate with business analysts, project managers, and other IT staff to support and enhance legacy systems, as well as to integrate new technologies with existing mainframe infrastructure.

What is the difference between Mainframe Software Developer vs Mainframe Systems Analyst?

AspectMainframe Software DeveloperMainframe Systems Analyst
Required CredentialsBachelor's in Computer Science or related field, certifications like IBM Certified SpecialistBachelor's in IT, Computer Science, or related, often with certifications in mainframe systems
Work EnvironmentDevelops and codes mainframe applications, often in COBOL, PL/I, or AssemblerAnalyzes system requirements, designs solutions, and coordinates between users and developers
Employer & Industry UsageFinancial institutions, government agencies, large corporations using mainframe systemsSame industries, focusing on system analysis, requirements gathering, and process improvements

While Mainframe Software Developers focus on coding and building mainframe applications, Mainframe Systems Analysts analyze existing systems and gather requirements to improve or implement new solutions. Both roles are essential in mainframe environments and often collaborate closely.

What are the key skills and qualifications needed to thrive as a mainframe software developer?

To thrive as a Mainframe Software Developer, you need expertise in COBOL, JCL, mainframe operating systems (such as z/OS), and a background in computer science or related fields. Familiarity with mainframe tools like IBM CICS, DB2, and version control systems, along with certifications such as IBM Certified System Programmer, is highly valued. Strong analytical thinking, problem-solving abilities, and effective communication set standout professionals apart in this field. These skills ensure the maintenance of critical legacy systems, support for business operations, and seamless integration with modern technologies.
What are popular job titles related to Mainframe Software Developer jobs in California? For Mainframe Software Developer jobs in California, the most frequently searched job titles are:
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What cities in California are hiring for Mainframe Software Developer jobs? Cities in California with the most Mainframe Software Developer job openings:
What are popular job titles related to Mainframe Software Developer jobs in CA? For Mainframe Software Developer jobs in CA, the most frequently searched job titles are:
Mainframe Software Developer jobs near you
Infographic showing various Mainframe Software Developer job openings in California as of August 2026, with employment types broken down into 76% Full Time, and 24% Contract. Highlights an 94% In-person, and 6% Remote job distribution, with an average salary of $109,572 per year, or $52.7 per hour.

Mainframe Developer

Triunity Software

Los Angeles, CA • On-site

$100K - $110K/yr

Full-time

Medical

Posted 7 days ago

Job description

Benefits:
  • Bonus based on performance
  • Health insurance
  • Training & development

About the Role:
Triunity Software is looking for a talented Mainframe professional to join our growing team in Los Angeles, CA. This is an exciting opportunity to work on mission-critical systems and make a real impact in a dynamic, technology-driven environment. If you're passionate about mainframe technologies and ready to take your career to the next level, we want to hear from you!
Responsibilities:
  • Design, develop, and maintain mainframe applications and systems
  • 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 business and technical requirements
  • Monitor mainframe performance and implement tuning improvements
  • Participate in system migrations, upgrades, and modernization initiatives
  • Document technical specifications, processes, and procedures

Requirements:
  • Proven experience in mainframe development or administration (IBM z/OS preferred)
  • Proficiency in COBOL, JCL, CICS, DB2, or related mainframe technologies
  • Strong analytical and problem-solving skills in complex system environments
  • Experience with mainframe performance monitoring and tuning tools
  • Familiarity with SDLC methodologies and Agile development practices
  • Excellent communication and collaboration skills
  • Bachelor's degree in Computer Science, Information Technology, or equivalent experience

Compensation: $100,000.00 - $110,000.00 per year
About Us
Triunity is a Product Development, Staff Augmentation, and Consulting Services company providing solutions and services in North America. We provide IT services and technology solutions to various business verticals like Healthcare, Pharma, Banking, Finance, etc. Our goal is to develop a long-term partnership with businesses and help them get a competitive advantage by providing IT infrastructure and software platforms.
Lead by experts in the IT industry with a proven record of delivering software solutions, consulting, and staffing services, we have expertise in fulfilling client needs in terms of customized business solutions as well as IT consulting. At Triunity, we always try to bring the right mix of skills, technologies, and experts together which helps our clients to stay ahead in the competition. Our goal is to make our clients empower with cutting-edge technologies and take care of all their IT needs so they can focus more on their core business.
Triunity Culture
Our core value is our people and our teams . We believe the real mantra of success is like minded people with right mix of technical and analytical skills. Our strength lies in bringing right set of people and delivering work as a team. Be it expert or intern Triunity always always value its own people and give them platform to excel in their career.
At Triunity you can expect
  • Challenging & Friendly
  • Work on new edge technologies & tools
  • Work with industry experts
  • Solving complex client problems and delivering solutions
  • Working on projects lasting from six months to several years
Careers & Growth Model
At Triunity people are motivated by the complexity and challenges they face when working on client projects . We always motivate our people to keep learning new technologies and also give them platform where they can get chance to show their technical and analytical skills . We help our people in adding latest technologies ,tools, methodologies and certifications to their resume by arranging trainings , seminars and knowledge sharing sessions.
Triunity Software logo

About Triunity Software

Sourced by ZipRecruiter

Triunity is a Product Development, Staff Augmentation, and Consulting Services company providing solutions and services in North America. We provide IT services and technology solutions to various business verticals like Healthcare, Pharma, Banking, Finance, etc. Our goal is to develop a long-term partnership with businesses and help them get a competitive advantage by providing IT infrastructure and software platforms.

Industry

It services

Company size

11 - 50 Employees

Headquarters location

Iselin, NJ, US

Year founded

2021

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