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Mainframes Developer Jobs in Wisconsin (NOW HIRING)

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

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 ...

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

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 ...

WI ยท On-site

Drive transformation of legacy/mainframe-based payment systems to cloud-native, microservices-based ... Engineering leadership experience managing technical teams. * Experience leading architecture ...

Software Integration Engineer

Franklin, WI ยท Hybrid

$96K - $130K/yr

Proficiency in IBM MQ (Linux, MQ Appliance, Mainframe MQ preferred). * Strong skills in Python, Java, Shell Scripting, and Git. * Experience in reverse engineering and system analysis. * Familiarity ...

Sr. Java Developer

Madison, WI ยท On-site

$57.75 - $73.50/hr

Experience building and deploying large scale Java web applications Conceptual knowledge of information technologies and methodologies in mainframe, midrange, Web and PC computing environments ...

WI ยท On-site

... mainframe-based applications to a modern distributed tech stack. DE architecting and engineering enterprise level, multi-Cloud-based platforms built on Docker, Kubernetes, and Elastic Kubernetes ...

WI ยท On-site

... mainframe-based applications to a modern distributed tech stack. DE architecting and engineering enterprise level, multi-Cloud-based platforms built on Docker, Kubernetes, and Elastic Kubernetes ...

WI ยท On-site

$76K - $108K/yr

Senior Software Developer (Unix/C/Oracle/SQL) Date: Aug 28, 2026 Location: Any city, TX, US, 99999 ... COBOL and Mainframe knowledge is a plus. * Use of Git and Github.com is a plus. * Experience with ...

Showing results 41-60

Mainframes Developer information

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

Is a mainframes developer a good career?

A mainframes 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 systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the ongoing need to maintain and upgrade existing mainframe applications. However, the number of new positions is limited compared to emerging technologies, and skills in mainframe modernization are increasingly valued.

What does a mainframes developer do?

A mainframes developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of large-scale enterprise systems, frequently working with legacy code and mainframe-specific tools in a structured environment.

What job categories do people searching Mainframes Developer jobs in Wisconsin look for?

The top searched job categories for Mainframes Developer jobs in Wisconsin are:

What cities in Wisconsin are hiring for Mainframes Developer jobs?

Cities in Wisconsin with the most Mainframes Developer job openings:

Infographic showing various Mainframes Developer job openings in Wisconsin as of September 2026, with employment types broken down into 70% Full Time, and 30% Contract. Highlights an 80% In-person, and 20% Remote job distribution.

RPG Developer (As400)

Neenah, WI โ€ข On-site

Urpantech inc
11 - 50 employees

Contractor

Re-posted 8 days ago


Job description

Company Description
Job Description
Job Purpose /Summary
The Programmer/Analyst is responsible for developing and maintaining application systems and for identifying methods of improving computer systems capabilities, increasing operating efficiency programs or adapting current programs to new requirements.
In addition to the main job purpose, there are many other roles performed by the individual.
Essential Duties & Accountabilities
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily.
โ€ข Manage projects
โ€ข Develop system specifications
โ€ข Develop system documentation
โ€ข Develop test scenarios
โ€ข System implementation
โ€ข System training and education
โ€ข Analyze problems, programs, processes, procedures and performance of programs and systems
โ€ข Create or maintain programs and databases
โ€ข Program and system testing
โ€ข Integration or interface Development
โ€ข Collaborate with other members of the department
Major System Support:
โ€ข Friedman ERP
โ€ข Varsity transportation
โ€ข TL Ashford
โ€ข Gentran EDI
โ€ข Databases - DB2, SQL
โ€ข Programming Languages - RPG ILE, CL, SQL
Knowledge / Skills / Ability
Education and/or Experience
Associate or Bachelor's degree in Computer Programming
10 years of broad based experience in analysis, design, coding, testing and implementation
Qualifications
โ€ข Must have knowledge of micro/mini/mainframe computer operating systems; hardware and software installation, testing and operation; principles of data communications and telecommunications; local area network concepts and fundamentals;
โ€ข Ability to respond in a flexible manner and to reprioritize work as situations change
โ€ข Ability to effectively communicate both in writing and verbally, with people of various educational and technical backgrounds