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Mainframe Developer Jobs in Wisconsin (NOW HIRING)

RIT Solutions, Inc.

ETL Developer

Madison, WI · Hybrid

$51.50 - $67.25/hr

Title- ETL Developer Location: Hartford, CT, hybrid schedule Length: 12 months+ * ETL - strong SSI ... Ideally recent experience with COBOL mainframe systems, migrating from * Data Mapping, Data ...

Urpantech inc

RPG Developer (As400)

Neenah, WI

Job Purpose /Summary The Programmer/Analyst is responsible for developing and maintaining ... mini/mainframe computer operating systems; hardware and software installation, testing and ...

Urpantech inc

RPG Developer (As400)

Neenah, WI · On-site

Company Description Job Purpose /Summary The Programmer/Analyst is responsible for developing and ... mini/mainframe computer operating systems; hardware and software installation, testing and ...

Sonsoft Inc

Mainframe Architect

Milwaukee, WI

Build & CI pipeline management tools - Ability to conceptualize, design and execute a customized end-to-end CI/CD pipeline and workflow solution (DevOps). * Familiarity and experience with design ...

Sonsoft Inc

Mainframe Architect

Milwaukee, WI

... (DevOps) Familiarity and experience with design, setup and management of Dev, QA & Production Environments for high availability distributed applications with very large user base Leadership and ...

US Bank

z/OS Systems Engineer

Brookfield, WI · On-site

Bank is seeking a z/OS Systems Programmer that has extensive experience in mainframe technologies with an emphasis on installation/upgrading, tuning, and troubleshooting of z/OS and third-party ...

MARS Solutions Group

Systems Engineer - Senior

Franklin, WI · On-site

$97K - $132.80K/yr

Conduct Distributed, Cloud, and Mainframe platform DR tests * Disaster Recovery gap identification ... Bachelors in Computer Science / Computer Engineering * 5+ years of professional experience required

Apex Systems

Technical Analyst

Madison, WI · On-site +1

$40 - $60/hr

Exposure to or experience with mainframe technologies. * Background as a former developer. * Experience working in modern Microsoft tech stack environments (.NET, C#, React). * Prior experience in ...

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$10

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How much do mainframe developer jobs pay per hour?

As of May 31, 2026, the average hourly pay for mainframe developer in Wisconsin is $53.88, according to ZipRecruiter salary data. Most workers in this role earn between $47.55 and $61.15 per hour, depending on experience, location, and employer.

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

To thrive as a Mainframe Developer, you need expertise in programming languages such as COBOL, JCL, and SQL, along with a strong understanding of mainframe operating systems and batch processing concepts. Familiarity with tools like IBM z/OS, DB2, CICS, and version control systems is typically required, and certifications from IBM or related organizations can be beneficial. Strong problem-solving abilities, attention to detail, and effective communication skills help Mainframe Developers excel in troubleshooting and collaborating with cross-functional teams. These skills are crucial for maintaining, optimizing, and modernizing legacy systems that are vital to many large organizations’ operations.

What are some common challenges Mainframe Developers face when integrating legacy systems with modern applications?

Mainframe Developers often encounter challenges such as ensuring compatibility between legacy systems and newer technologies, managing data migration without disrupting business operations, and maintaining the security of sensitive data. Effective communication with cross-functional teams, such as application developers and infrastructure engineers, is essential to address these challenges. Staying updated on both mainframe and modern programming practices helps ease integration and ensures long-term system reliability.

What are Mainframe Developers?

Mainframe Developers are specialized software engineers who design, develop, maintain, and troubleshoot applications on mainframe computer systems, such as IBM's z/OS. They typically work with languages like COBOL, JCL, and CICS, and are responsible for ensuring the performance, security, and reliability of mission-critical business applications. Mainframe Developers are commonly employed in industries like banking, insurance, and government, where large-scale, high-volume transaction processing is essential.

What is the difference between Mainframe Developer vs Mainframe Analyst?

AspectMainframe DeveloperMainframe Analyst
Primary RoleDesigning, coding, and testing mainframe applicationsAnalyzing and maintaining existing mainframe systems
Skills & CertificationsCOBOL, JCL, DB2, certifications like IBM Certified DeveloperCOBOL, JCL, system analysis, troubleshooting skills
Work EnvironmentDevelopment teams, coding in mainframe environmentsSupport teams, system analysis, user support
Industry UsageFinancial services, insurance, government agenciesFinancial institutions, healthcare, government agencies

While Mainframe Developers focus on creating and implementing mainframe applications, Mainframe Analysts primarily analyze, troubleshoot, and maintain existing systems. Both roles require similar technical skills and often work within the same industries, but their core responsibilities differ in development versus support and analysis.

What are the most commonly searched types of Mainframe Developer jobs in Wisconsin? The most popular types of Mainframe Developer jobs in Wisconsin are:
What are popular job titles related to Mainframe Developer jobs in Wisconsin? For Mainframe Developer jobs in Wisconsin, the most frequently searched job titles are:
What job categories do people searching Mainframe Developer jobs in Wisconsin look for? The top searched job categories for Mainframe Developer jobs in Wisconsin are:
What cities in Wisconsin are hiring for Mainframe Developer jobs? Cities in Wisconsin with the most Mainframe Developer job openings:
What are popular job titles related to Mainframe Developer jobs in WI? For Mainframe Developer jobs in WI, the most frequently searched job titles are:
Mainframe Developer jobs near you
Infographic showing various Mainframe Developer job openings in Wisconsin as of May 2026, with employment types broken down into 48% Full Time, and 52% Contract. Highlights an 90% In-person, 2% Hybrid, and 8% Remote job distribution, with an average salary of $112,065 per year, or $53.9 per hour.
ETL Developer

ETL Developer

RIT Solutions, Inc.

Madison, WI • Hybrid

$51.50 - $67.25/hr

Full-time

Posted 29 days ago

Job description

Title- ETL Developer
Location: Hartford, CT, hybrid schedule
Length: 12 months+

  • ETL - strong SSIS
  • Strong Python
  • Ideally recent experience with COBOL mainframe systems, migrating from
  • Data Mapping, Data Cleansing
  • Strong experience extracting data from target sources, legacy systems.

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