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Mainframe Jobs in Wisconsin (NOW HIRING)

WI · On-site

$125 - $150/hr

The Team The Mainframe Application Infrastructure (MAI) team is part of the Enterprise Technology group. The MAI team provides common solutions for mainframe brokerage applications as well as general ...

Preferred At least 6 years of relevant experience with mainframe- PL/1 language, JCL, and DB2 database At least 6 years of experience in software development life cycle. At leave 4 years of ...

WI · On-site

$200 - $250/hr

The Role As Director, Mainframe DB2 Performance & Capacity You will provide technical leadership for DB2 for z/OS performance, scalability, resiliency, and capacity management across Fidelity ...

WI · On-site

$100 - $125/hr

Overview Exciting Sr. Mainframe MFA Consultant, 6 months, contract opportunity. Responsibilities * Identify Roles and responsibility of team * Understand how Entra ID is hosted and configured

WI · On-site

$200 - $250/hr

The Role As Director, Mainframe CICS/MVS Performance & Capacity, you will provide technical leadership for performance engineering, scalability, resiliency, and capacity management across Fidelity ...

Mainframe CICS Systems Engineer

Wauwatosa, WI · On-site

$47.50 - $61.25/hr

The Mainframe CICS Systems Programmer/Engineer is responsible for all phases of CICS engineering, system and software maintenance, and CICS related operational functions. The candidate must be ...

Mainframe Developer - Brookfield, WI

Brookfield, WI · On-site

$46.50 - $59.75/hr

ClifyX is seeking a Mainframe Developer to join their team. The role involves full life cycle development of business applications, supporting and modifying existing applications, and driving the ...

MF Cobol developer

Madison, WI · On-site

$100 - $125/hr

Design, develop, and maintain Mainframe applications using COBOL, JCL, DB2, CICS, and VSAM. * Work with business analysts to understand requirements, system specifications, and business needs, 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 ...

Company Description SonSoft is an IT Staffing and consulting firm and duly organized under the laws of the Commonwealth of Georgia. We are growing at a steady pace specializing in the fields of ...

Showing results 21-40

Mainframe information

See Wisconsin salary details

$10

$53

$73

How much do mainframe jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for mainframe 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?

Mainframes are powerful computers used mainly by large organizations for critical applications, bulk data processing, large-scale transaction processing, and enterprise resource planning. They are known for their reliability, scalability, and security, making them essential for industries like banking, healthcare, and government. Mainframes can handle thousands of users and transactions simultaneously, supporting the core operations of many businesses.

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

To excel as a Mainframe Developer, a strong background in COBOL, JCL, mainframe operating systems (like z/OS), and database management is essential, often supported by a degree in computer science or a related field. Familiarity with tools such as IBM DB2, CICS, VSAM, and mainframe version control systems is typically required, and certifications like IBM Certified System Programmer can be advantageous. Analytical thinking, problem-solving abilities, and effective communication are important soft skills for identifying issues and collaborating with cross-functional teams. These skills ensure reliable maintenance, development, and modernization of mission-critical legacy systems that support large-scale business operations.

What are some typical challenges faced by mainframe professionals when integrating legacy systems with modern technologies?

Mainframe professionals often encounter challenges when integrating legacy systems with newer technologies, such as ensuring data compatibility, managing security protocols, and minimizing downtime during migration. These tasks require a deep understanding of both the existing mainframe architecture and the modern platforms being introduced. Collaboration with cross-functional teams—including application developers, security specialists, and project managers—is essential to ensure seamless integration and to address potential issues proactively. Staying updated on the latest integration tools and best practices also helps in overcoming these challenges efficiently.

What is the difference between Mainframe vs Mainframe Developer?

AspectMainframeMainframe Developer
Primary RoleMaintains and manages mainframe hardware and systemsDesigns, develops, and tests mainframe applications
Skills & CertificationsKnowledge of mainframe hardware, OS, and basic scriptingProficiency in COBOL, JCL, and mainframe programming languages
Work EnvironmentData centers, enterprise IT departmentsDevelopment teams within mainframe environments
Industry UsageUsed by organizations with legacy systemsDevelops and maintains those legacy systems

While Mainframe professionals focus on maintaining the hardware and system infrastructure, Mainframe Developers specialize in creating and updating mainframe applications. Both roles require knowledge of mainframe environments, but their responsibilities differ significantly within the same industry.

Is mainframe a good career option?

Mainframe careers involve working with large-scale computer systems used by many organizations for critical applications. The role typically requires knowledge of programming languages like COBOL, skills in system maintenance, and certifications such as IBM Certified System Programmer. It offers stable employment opportunities and competitive salaries due to the specialized skill set involved.

What are the most commonly searched types of Mainframe jobs in Wisconsin?

The most popular types of Mainframe jobs in Wisconsin are:

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

The top searched job categories for Mainframe jobs in Wisconsin are:

What cities in Wisconsin are hiring for Mainframe jobs?

Cities in Wisconsin with the most Mainframe job openings:

Infographic showing various Mainframe job openings in Wisconsin as of September 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 93% In-person, and 7% Hybrid job distribution, with an average salary of $112,065 per year, or $53.9 per hour.

Senior Software Engineer - Mainframe, MQ, CICS

WI • On-site

$125 - $150/hr

Other

Posted 5 days ago


Job description

Job Description: Senior Software Engineer - Mainframe, MQ, CICS

Note: Fidelity will not provide immigration sponsorship for this position.

The Team

The Mainframe Application Infrastructure (MAI) team is part of the Enterprise Technology group. The MAI team provides common solutions for mainframe brokerage applications as well as general mainframe engineering and consultation services.

The team is responsible for the common infrastructure solutions to support applications that leverage CICS, DB2 and MQ technologies in a two site, active-active environment.

  • Production Stability
  • Application Scalability
  • Engineering Excellence
  • Mainframe-to-Cloud Migration Enablement

The team is responsible for application infrastructure software development/maintenance in addition to online (MQ, CICS and DB2) environment configuration and management. The software development responsibilities include development and support of proprietary solutions for communication interfaces, dynamic transaction routing, MQ messaging, multisite operations, file replication and user authorization. Environment management responsibilities include CICS/MQ topology, remote DB2 connection management and configuration for reuse of common cloud enablement solutions.

The Role

You will be part of a squad responsible for MQ and multi-site infrastructure software development and maintenance. This software is used across the brokerage platform to allow switching the mainframe sites they are connected to. This is mission critical software which processes millions of transactions every day.

Additional responsibilities include participation in an on-call rotation for all software owned by the team. You will also work with the team leads and stakeholders from other organizations to help prioritize the backlog and plan out major initiatives.

The Expertise You Have

BS/BA Degree or equivalent experience preferred. 2 plus years of mainframe application development experience which utilize CICS, DB2, MQ. Exposure to designing, building, deploying, and supporting mainframe applications.

Familiarity with the following:

  • CICS
  • COBOL
  • VSAM
  • MQ
  • SQL

Knowledge in Assembler, REXX, JCL, JAVA, Control-M a plus but not required.

The Skills You Bring

You have experience and feel confident working in an agile environment (Scrum and Kanban).

Excellent analytical and problem-solving skills. You bring your curiosity and excitement; desire to collaborate with team members. Enjoy learning the business behind the applications outside of our own team. Clear written and verbal communication skills.

The Value You Deliver

Collaborating across a wide range of teams within and outside our own organization. Being an excellent teammate developing/deploying software in a fast-paced and highly flexible environment. Continued focus on improving production stability. Forever learning and growing your skillsets to be an active contributor to a well-rounded team.

Fidelity’s Onsite Working Model

Fidelity is transitioning to a full-time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.

Certifications: Category: Information Technology

Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.

At Fidelity, we are passionate about making our financial expertise broadly accessible and effective in helping people live the lives they want! We are a privately held company that places a high degree of value in creating and nurturing a work environment that attracts the best talent and reflects our commitment to our associates. We are proud of our diverse and inclusive workplace where we respect and value our associates for their unique perspectives and experiences.

For information about working at Fidelity, visit FidelityCareers.com.

Fidelity Investments is an equal opportunity employer. Fidelity will reasonably accommodate applicants with disabilities who need adjustments to participate in the application or interview process.

To initiate a request for an accommodation please contact the following: For roles based in the US: Contact the HR Leave of Absence/Accommodation Team by sending an email to accommodations@fmr.com, or by calling 800-835-5099, prompt 2, option 2. For roles based in Ireland: Contact AccommodationsIreland@fmr.com. For roles based in Germany: Contact Accommodationsgermany@fmr.com.

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