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Mainframe Software Developer Jobs in Fremont, CA

Modal, Inc

Developer Relations Engineer

San Francisco, CA · On-site

$175K - $275K/yr

... mainframes, databases, and the cloud. Each time, the company that rebuilt the layer underneath ... We are looking for someone who: * 3+ years as a software engineer * Is energized by the AI ...

US Bank

z/OS Systems Engineer

Cupertino, CA · On-site

S. Bank is seeking a z/OS Systems Programmer that has extensive experience in mainframe ... Experience supporting and configuring enterprise mainframe software from Broadcom (CA), BMC, and ...

Visa

Senior Manager, SW Engineering

Foster City, CA · On-site

... Mainframe type systems. It is built as a modern distributed architecture based on micro services ... DevOps design patterns, processes and best practices * Working familiarity with the entire software ...

Visa

Senior Manager, SW Engineering

Foster City, CA

... Mainframe type systems.It is built as a modern distributed architecture based on micro services ... DevOps design patterns, processes and best practices * Working familiarity with the entire software ...

Visa

Sr. SW Test Engineer

Foster City, CA · On-site

$109K/yr

Visa is looking for Senior Software Test Engineers, who will help build Open VisaNet, Visa's Next ... Mainframe type systems. It is built as a modern distributed architecture based on micro services ...

Visa

Sr. SW Test Engineer

Foster City, CA · Hybrid

$109K/yr

Visa is looking for Senior Software Test Engineers, who will help build Open VisaNet, Visa's Next ... Mainframe type systems.It is built as a modern distributed architecture based on micro services ...

360 IT Professionals

QA Engineer

San Ramon, CA · On-site

Bachelor's degree in business, software engineering, computer science, or related fields of study * 9+ years of experience testing in a multi-platform environment including mainframe * 3+ years of ...

DRT Strategies

IT Analyst

Palo Alto, CA · On-site

... programming assignments supporting the development, enhancement, and maintenance of application programs, application systems, and operating-system software across mainframe, network, and client ...

DRT Strategies, Inc.

IT Analyst

Palo Alto, CA · On-site

$80K - $100K/yr

Experience in analytical and programming assignments supporting development, enhancement, and maintenance of application programs, application systems, and operating-system software across mainframe ...

DRT Strategies, Inc.

IT Analyst

Palo Alto, CA · On-site

$80K - $100K/yr

Experience in analytical and programming assignments supporting development, enhancement, and maintenance of application programs, application systems, and operating-system software across mainframe ...

Sonsoft Inc

Abinitio

Sunnyvale, CA · On-site

$59.75 - $78.25/hr

Sonsoft Inc. is growing at a steady pace specializing in the fields of Software Development ... Experience handling different data file formats including mainframe files. * Knowledge and exposure ...

Sonsoft Inc

Abinitio

Sunnyvale, CA · On-site

$59.75 - $78.25/hr

Sonsoft Inc. is growing at a steady pace specializing in the fields of Software Development ... Experience handling different data file formats including mainframe files * Knowledge and exposure ...

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Mainframe Software Developer information

See Fremont, CA salary details

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How much do mainframe software developer jobs pay per hour?

As of Jul 17, 2026, the average hourly pay for mainframe software developer in Fremont, CA is $58.43, according to ZipRecruiter salary data. Most workers in this role earn between $51.59 and $66.30 per hour, depending on experience, location, and employer.

What does a mainframe developer do?

A mainframe developer designs, codes, tests, and maintains software applications that run on large mainframe computers. They often work with languages like COBOL, PL/I, or Assembler and use tools such as IBM Z/OS. Their role involves ensuring the reliability, security, and efficiency of critical enterprise systems.

Is mainframe developer a good career?

Mainframe software developers work with legacy systems that are still critical in many industries such as finance and government. The role offers stable employment, competitive salaries, and opportunities to develop expertise in languages like COBOL and tools like JCL. However, the field is specialized, and ongoing learning of mainframe technologies and certifications can enhance career prospects.

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.

Can mainframe be replaced by AI?

Mainframe software developers work with large-scale, legacy systems that require specialized knowledge of mainframe environments, programming languages, and security protocols. While AI can automate certain tasks like data analysis and testing, it is unlikely to fully replace mainframe systems or the developers who maintain them, as mainframes continue to support critical enterprise operations. Instead, AI tools are often integrated to enhance efficiency and modernize existing mainframe workflows.

What are the key skills and qualifications needed to thrive as a Mainframe Software Developer, and why are they important?

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 is the salary of a mainframe developer?

The salary of a mainframe software developer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and certifications. Senior developers with specialized skills in COBOL, JCL, or mainframe environments can earn higher salaries, often exceeding $130,000. Compensation may also include benefits such as bonuses and retirement plans.
What are popular job titles related to Mainframe Software Developer jobs in Fremont, CA? For Mainframe Software Developer jobs in Fremont, CA, the most frequently searched job titles are:
What job categories do people searching Mainframe Software Developer jobs in Fremont, CA look for? The top searched job categories for Mainframe Software Developer jobs in Fremont, CA are:
What cities near Fremont, CA are hiring for Mainframe Software Developer jobs? Cities near Fremont, CA with the most Mainframe Software Developer job openings:
Mainframe Software Developer jobs near you
Infographic showing various Mainframe Software Developer job openings in Fremont, CA as of July 2026, with employment types broken down into 82% Full Time, 8% Part Time, 1% Temporary, and 9% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution, with an average salary of $121,537 per year, or $58.4 per hour.
Developer Relations Engineer

Developer Relations Engineer

Modal, Inc

San Francisco, CA • On-site

$175K - $275K/yr

Full-time

Re-posted 13 days ago

Job description

About Us:
AI needs a new infrastructure layer. We're building it at Modal.
Every era of computing brought new workloads that previous infrastructure couldn't support: mainframes, databases, and the cloud. Each time, the company that rebuilt the layer underneath defined the decade. AI is no different, except it touches everything instead of one slice, and the window to build the layer underneath it is open right now.
Our customers include category-defining companies like Lovable, Ramp, Cognition, DoorDash, and Suno. They rely on Modal for instant GPU access, sub-second container starts, and native storage, so it's simple to serve low-latency inference, fine-tune models, and access production-ready sandboxes at scale.
We recently raised a $355M Series C at a $4.65B valuation, led by General Catalyst and Redpoint Ventures. We've crossed $300M+ ARR and grown fivefold since September.
Our team includes creators of popular open-source projects (e.g.,Seaborn,Luigi), academic researchers, international olympiad medalists, and experienced engineering and product leaders with decades of experience.
The Role:
Modal builds AI infrastructure products that developers love. That's how we grew so quickly, and why word of mouth remains one of our most important channels today.
In this role, you will primarily create and distribute technical content that is unique, educational, and practical. This content will be the first Modal touchpoint for many of our users. We want to not only showcase the power and developer experience of Modal, but also serve as a trusted resource for them when implementing new AI technologies.
In this role, you will:
  • Distill the latest advancements in AI technology and educate developers on how to incorporate them.
  • Give demos/talks about Modal and adjacent tools at developer events.
  • Engage with users in our community, both online (X, LinkedInReddit, Slack) and at in-person events.
  • Build relationships, integrations, and joint marketing activities with other developer-focused companies
  • Set objectives that are aligned with the greater GTM team and track the impact of the initiatives you work on.

Requirements:
We are looking for someone who:
  • 3+ years as a software engineer
  • Is energized by the AI developer community and wants to help developers adopt new technologies.
  • Loves teaching.
  • Has excellent technical communication skills.
  • Is metrics-driven and takes quantitative approaches to prioritizing initiatives.
  • Is excited about working in-person in the NYC, SF or Stockholm office.
  • Bonus: you're not afraid to think outside the box when it comes to compelling technical content.
  • Bonus: you already have a developer following on social media!

Apply