ZipRecruiter

Log In

1

Mainframe Developer Jobs in Wisconsin (NOW HIRING)

Sonsoft Inc

Mainframe Automation Testing

Milwaukee, WI · On-site

Jenkins * 2 yrs of SDET knowledge in PL1 (Mainframe) * 2 yrs of Insurance knowledge * Framework Design and Enhancement * Experience with Insurance domain * Ability to work in team environment and ...

Sonsoft Inc

Mainframe Automation Testing

Milwaukee, WI · On-site

Jenkins * 2 yrs of SDET knowledge in PL1 (Mainframe) * 2 yrs of Insurance knowledge * Framework Design and Enhancement * Experience with Insurance domain * Ability to work in team environment and ...

Soteria Reinsurance Ltd.

WI · On-site

Fidelity is seeking a Director of Software Engineering to lead the design, development, and maintenance of mainframe, batch, and cloud-native applications in AWS and Azure, using Java and Spring Boot.

Kanak Elite Services Inc

Senior CA-Gen Developer

Madison, WI · On-site

$55 - $72.50/hr

... a mainframe DB2 client-server environment * Ability to independently perform a variety of ... analysis and programming tasks with a wide degree of creativity and latitude * Senior-level ...

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 · On-site

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 · On-site

... (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 ...

krg technology inc

RPG Developer(AS 400)

Neenah, WI · On-site

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

Soteria Reinsurance Ltd.

WI · On-site

$180 - $230/hr

Manages and oversees all design, development, and maintenance of mainframe and distributed ... Bachelor degree in Computer Science, Engineering, Information Technology, Information Systems, or a ...

Soteria Reinsurance Ltd.

WI · On-site

$231K/yr

Manages and oversees all design, development, and maintenance of mainframe and distributed ... Bachelor degree in Computer Science, Engineering, Information Technology, Information Systems, or a ...

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 ...

previous pagenext page

Showing results 21-40

All JobsMainframe Developer JobsMainframe Developer Jobs in Wisconsin

Mainframe Developer information

See Wisconsin salary details

$10

$53

$73

How much do mainframe developer jobs pay per hour?

As of Aug 22, 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 is a mainframe developer?

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

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 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.

Is a mainframe developer a good career?

A mainframe developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy technologies like COBOL and JCL, but it may require ongoing learning of evolving mainframe tools and certifications. Overall, it can be a good career for those interested in enterprise computing and system stability.

Is a mainframe developer hard to learn?

Mainframe developers typically need to learn specialized programming languages like COBOL and understand mainframe environments, which can have a steep learning curve for beginners. However, with prior programming experience and training, acquiring the necessary skills is achievable, and many employers offer on-the-job training or certification programs.

Is mainframe developer still in demand?

Mainframe developers are still in demand in industries such as finance, insurance, and government, where legacy systems remain critical. They typically work with COBOL, JCL, and mainframe environments, and demand depends on the organization's reliance on mainframe technology and ongoing maintenance needs.

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 August 2026, with employment types broken down into 82% Full Time, and 18% Contract. Highlights an 94% In-person, and 6% Hybrid job distribution, with an average salary of $112,065 per year, or $53.9 per hour.

Mainframe Automation Testing

Sonsoft Inc

Milwaukee, WI • On-site

Full-time

Re-posted 21 days ago

Job description

Company Description

Sonsoft , Inc. is a USA based corporation duly organized under the laws of the Commonwealth of Georgia. Sonsoft Inc. is growing at a steady pace specializing in the fields of Software Development, Software Consultancy and Information Technology Enabled Services.

Job Description
  • JavaScript
  • Selenium (aka nightwatch.js, protractor, web driver, browser automation)
  • Experience in Shell scripting
  • Jenkins
  • 2 yrs of SDET knowledge in PL1 (Mainframe)
  • 2 yrs of Insurance knowledge
  • Framework Design and Enhancement
  • Experience with Insurance domain
  • Ability to work in team environment and client interfacing skills
  • Experience and desire to work in a Global delivery environment
  • Act as independent lead for test automation and define the automation framework
  • Ability to conduct POC demonstrate to stakeholders independently.
Qualifications
  • Bachelor's degree or foreign equivalent required from an accredited institution. Will also consider three years of progressive experience in the specialty in lieu of every year of education.
  • At least 2 years of experience within the Information Technologies.
Additional Information

** U.S. Citizens and those who are authorized to work independently in the United States are encouraged to apply. We are unable to sponsor at this time.

This is a Full-Time / Permanent job opportunity.

Only US Citizen, Green Card Holder, GC-EAD,H4-EAD, & L2-EAD can apply.

.

** All your information will be kept confidential according to EEO guidelines.


Sonsoft logo

About Sonsoft

Sourced by ZipRecruiter

Sonsoft , Inc. is a USA based corporation duly organized under the laws of the Commonwealth of Georgia. Sonsoft Inc. is growing at a steady pace specializing in the fields of Software Development, Software Consultancy and Information Technology Enabled Services.

Industry

It services

Company size

51 - 200 Employees

Headquarters location

Alpharetta, GA, US

Year founded

2007

View All Sonsoft Jobs

Apply