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Mainframe Systems Programmer Jobs in Wisconsin (NOW HIRING)

Mainframe Developer

Brookfield, WI · On-site

$60K - $135K/yr

Mainframe Developer City: Brookfield State/Province: Wisconsin Posting Start Date: 7/6/26 Wipro ... system. * Proven ability to assess incident severity, manage escalations, and drive timely ...

Mainframe Developer

Brookfield, WI · On-site

$60K - $135K/yr

Mainframe Developer City: Brookfield State/Province: Wisconsin Posting Start Date: 6/29/26 Wipro ... system. * Proven ability to assess incident severity, manage escalations, and drive timely ...

Mainframe Developer

Brookfield, WI · On-site

$60K - $135K/yr

Mainframe Developer City: Brookfield State/Province: Wisconsin Posting Start Date: 7/6/26 Wipro ... system. * Proven ability to assess incident severity, manage escalations, and drive timely ...

Evaluate legacy systems and propose actionable modernization strategies-covering rehosting ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

Mainframe Specialist

Milwaukee, WI · On-site

$70K - $196K/yr

Evaluate legacy systems and propose actionable modernization strategies-covering rehosting ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

MF Cobol developer

Madison, WI · On-site

$49.50 - $63.50/hr

Mainframe COBOL Developer Overview / Summary We are seeking a highly skilled Mainframe COBOL ... Integrate Mainframe applications with other systems and platforms to support data flow and ...

New

MF Cobol developer

Madison, WI · On-site

$49.50 - $63.50/hr

Mainframe COBOL Developer Overview / Summary We are seeking a highly skilled Mainframe COBOL ... Integrate Mainframe applications with other systems and platforms to support data flow and ...

New

MF Cobol developer

Madison, WI · On-site

$49.25 - $63.50/hr

... COBOL Developer a { text-decoration: none; color: #464feb; } tr th, tr td { border: 1px solid ... Integrate Mainframe applications with other systems and platforms to support data flow and ...

New

Quality Assurance Engineer EMPLOYER: Fiserv Solutions, LLC LOCATION: Milwaukee, WI (and various ... mainframe systems, on-prem and cloud environments. Detect, diagnose, and resolve performance ...

Quality Assurance Engineer EMPLOYER: Fiserv Solutions, LLC LOCATION: Milwaukee, WI (and various ... mainframe systems, on-prem and cloud environments. Detect, diagnose, and resolve performance ...

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

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Mainframe Systems Programmer information

See Wisconsin salary details

$10

$58

$79

How much do mainframe systems programmer jobs pay per hour?

As of Jul 13, 2026, the average hourly pay for mainframe systems programmer in Wisconsin is $58.72, according to ZipRecruiter salary data. Most workers in this role earn between $53.37 and $67.93 per hour, depending on experience, location, and employer.

Are mainframe jobs in demand?

Mainframe systems programmers are in steady demand due to the continued reliance of large organizations on mainframe infrastructure for critical applications. Skills in COBOL, JCL, and mainframe security are highly valued, and many companies seek experienced professionals to maintain and upgrade legacy systems. The demand remains stable, especially in finance, government, and healthcare sectors that depend on mainframe technology.

What does a mainframe systems programmer do?

A mainframe systems programmer is responsible for installing, maintaining, and troubleshooting mainframe operating systems and software. They configure hardware, optimize system performance, and ensure security and reliability, often using tools like z/OS and JCL. Strong knowledge of system architecture and scripting is essential for this role.

Can mainframe be replaced by AI?

Mainframe systems programmers manage and maintain large-scale mainframe environments that run critical enterprise applications. While AI can automate certain tasks like monitoring and troubleshooting, it is unlikely to fully replace the specialized skills required for mainframe system programming, which involves complex configuration, security, and performance tuning. Mainframes remain essential in industries with high-volume transaction processing, and programmers need expertise in languages like COBOL and tools such as z/OS.

What Does a Mainframe Systems Programmer Do?

As a mainframe systems programmer, your responsibilities are to maintain an organization’s server computer, also called a mainframe computer. Your duties include handling server configuration, as well as installing, upgrading, and customizing the operating system and other software necessary for running the server and its databases. You also work with other IT professionals with the planning of security measures to protect the mainframe and routinely perform tests for bugs and other security issues.

What are some common challenges Mainframe Systems Programmers face when maintaining legacy systems?

Mainframe Systems Programmers often encounter challenges related to supporting and upgrading legacy systems that may have limited documentation or use outdated programming languages. Navigating compatibility issues with newer hardware or software can require creative problem-solving and deep technical expertise. Additionally, ensuring system security and reliability while performing upgrades or patches involves careful planning and collaboration with other IT and business teams. Staying current with evolving mainframe technologies and practices is essential for long-term success in the role.

What is the difference between Mainframe Systems Programmer vs Mainframe Application Developer?

AspectMainframe Systems ProgrammerMainframe Application Developer
CredentialsTypically requires certifications like IBM Certified Systems ProgrammerOften requires programming certifications or specific language expertise
Work EnvironmentWorks primarily on system-level tasks, OS, and hardware interactionsFocuses on developing and maintaining applications on mainframe platforms
Employer & Industry UsageCommon in large enterprises with mainframe infrastructureAlso in large organizations, but more application-focused
Job FocusSystem configuration, performance tuning, and maintenanceApplication coding, testing, and deployment

The Mainframe Systems Programmer primarily manages system-level tasks, ensuring the mainframe environment runs efficiently, while the Mainframe Application Developer focuses on creating and maintaining applications. Both roles are essential in mainframe environments but differ in their technical focus and responsibilities.

What are Mainframe Systems Programmers?

Mainframe Systems Programmers are IT professionals responsible for installing, configuring, maintaining, and troubleshooting mainframe computer systems and software. They ensure that the mainframe environment runs efficiently, securely, and reliably, supporting critical business operations. Their duties often include system upgrades, performance tuning, applying patches, and collaborating with other IT teams to resolve complex technical issues. Mainframe Systems Programmers play a key role in organizations that rely on large-scale transaction processing, such as banks, insurance companies, and government agencies.

What is the salary of a mainframe developer?

The salary of a mainframe systems programmer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and certifications. Senior roles or those with specialized skills in COBOL, JCL, or mainframe security may earn higher salaries. Compensation often includes benefits such as health insurance and retirement plans.

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

To thrive as a Mainframe Systems Programmer, you need expertise in system programming, operating systems like z/OS, and strong problem-solving abilities, usually supported by a degree in computer science or related field. Familiarity with mainframe tools such as IBM z/OS utilities, JCL, REXX, and experience with system monitoring and performance tuning software are commonly required. Attention to detail, analytical thinking, and effective communication skills help ensure smooth collaboration and troubleshooting. These skills are essential to maintain, optimize, and secure critical enterprise computing environments that rely on mainframe infrastructure.
What are popular job titles related to Mainframe Systems Programmer jobs in Wisconsin? For Mainframe Systems Programmer jobs in Wisconsin, the most frequently searched job titles are:
What job categories do people searching Mainframe Systems Programmer jobs in Wisconsin look for? The top searched job categories for Mainframe Systems Programmer jobs in Wisconsin are:
What cities in Wisconsin are hiring for Mainframe Systems Programmer jobs? Cities in Wisconsin with the most Mainframe Systems Programmer job openings:
Infographic showing various Mainframe Systems Programmer job openings in Wisconsin as of July 2026, with employment types broken down into 5% Locum Tenens, 80% Full Time, 5% Part Time, 1% Temporary, 7% Contract, and 2% Summer. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $122,138 per year, or $58.7 per hour.
Senior Mainframe Analyst (CooLGen expert)

Senior Mainframe Analyst (CooLGen expert)

CYNET SYSTEMS

Madison, WI • On-site

$50/hr

Contractor

Posted 21 days ago


Job description

Job Overview:

Requirement/Must Have:

  • 1+ years of experience in working on mainframe applications developed via CoolGen.
  • Strong experience in Mainframe technologies: COBOL, JCL, DB2, CICS.
  • Experience in business analysis and requirement gathering.
  • Good understanding of legacy system architecture and batch processing.

Responsibilities:

  • Perform reverse engineering and impact analysis for modernization initiatives.
  • Work with business stakeholders to translate requirements into functional and technical specifications.
  • Exposure to mainframe modernization, re-platforming, and re-engineering programs.
  • Ability to perform impact analysis and documentation.
 

Founded in 2010 and headquartered in the Washington, DC metro area, Cynet Systems Inc. is a leading staffing and recruiting powerhouse. Proudly recognized as a nationally and locally certified diversity firm, Cynet delivers agile, scalable talent solutions across industries. With an active footprint in all 50 U.S. states and Canada, we support thousands of consultants through our expansive, high-performing recruitment engine operating across North America and Asia—ensuring speed, quality, and consistency in every hire.

Cynet Systems logo

About Cynet Systems

Sourced by ZipRecruiter

Cynet Systems Inc is a staffing and recruiting corporation nestled in Ashburn, VA, USA. Established in 2010, the company operates within the Information Technology and Services sector, specializing in providing effective workforce solutions to different business needs, including IT consulting, direct hire, and contract staffing services. Through the years, Cynet Systems has built an impressive portfolio, going beyond borders and expanding its operations internationally in Canada and India. Rooted in its core values of teamwork, leadership, and commitment, Cynet Systems helps businesses unlock their full potential by providing versatile and competent professionals that perfectly align with their needs. Fueled by their unwavering mission to deliver top-tier talent to businesses worldwide, Cynet Systems garnered various recognitions including SIA's fastest-growing staffing firms and Best Place to Work in Virginia for 2019.

Industry

It services

Company size

501 - 1,000 Employees

Headquarters location

Sterling, VA, US

Year founded

2010

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