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Mainframe Systems Engineer Jobs in Wisconsin (NOW HIRING)

TIER4 GROUP

Software Integration Engineer

Franklin, WI · 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 ...

Urpantech inc

RPG Developer (As400)

Neenah, WI · On-site

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 ...

The Panaro Group LLC

Manager - IS

Menomonee Falls, WI · On-site

$95K - $116K/yr

... Systems department. • Manage, lead and mentor up to 12 direct reports. • Responsible for EDI coordination, Mainframe programming, VB Script, Help Desk, Networking, and developing custom reports ...

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 ...

Atria Group LLC

Guideware Consultant

Madison, WI

... and programming, software engineering, systems development, testing, integration, and ... Excellent skills in Data Bases (GreenPlum, Oracle, DB2 Mainframe) (worked at least 2 to 3 years in ...

Software Technology Inc

Business Analyst

Madison, WI

Conduct in-depth analysis of legacy systems (e.g., mainframe, on-premises, or outdated applications ... Work closely with IT architects and developers to ensure legacy system constraints and capabilities ...

Samprasoft

Business Analyst

Madison, WI

Conduct in-depth analysis of legacy systems (e.g., mainframe, on-premises, or outdated applications ... Work closely with IT architects and developers to ensure legacy system constraints and capabilities ...

US Bank

Software Engineer 2 - DevOps

Brookfield, WI · On-site +1

$98K - $115K/yr

Experience with mainframe development and SDLC, including a solid understanding of batch, online ... The E-Verify program is an Internet-based employment eligibility verification system operated by ...

U.S. Bank

Software Engineer 2 - DevOps

Brookfield, WI · On-site

$98K - $115K/yr

Experience with mainframe development and SDLC, including a solid understanding of batch, online ... The E-Verify program is an Internet-based employment eligibility verification system operated by ...

MIT RESOURCE

Sr. Java Developer

Madison, WI

$57.75 - $73.50/hr

... systems. The successful candidate must be capable of working very independently and, at times ... mainframe, midrange, Web and PC computing environments desirable; in-depth experience in one or ...

Brunswick

Production Planner

Fond Du Lac, WI

$62K - $90K/yr

Interplant, purchasing, vendor and engineering. * Communicate, coordinate, and resolve problems ... mainframe/ERP systems desirable. * Strong understanding of Inventory Control Techniques.

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Mainframe Systems Engineer information

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$58

$79

How much do mainframe systems engineer jobs pay per hour?

As of Jun 17, 2026, the average hourly pay for mainframe systems engineer 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.

What is the difference between Mainframe Systems Engineer vs Mainframe Systems Analyst?

AspectMainframe Systems EngineerMainframe Systems Analyst
Required CredentialsTypically requires a degree in Computer Science or Information Technology, plus certifications like IBM Certified System AdministratorSimilar credentials, often with additional focus on analysis and requirements gathering
Work EnvironmentHands-on technical roles managing hardware, software, and system configurationsFocuses on analyzing system needs, user requirements, and optimizing system performance
Employer & Industry UsageUsed in banking, finance, government sectors with large mainframe infrastructuresCommon in organizations needing system analysis and process improvement for mainframe environments

The Mainframe Systems Engineer and Mainframe Systems Analyst roles share similar credentials and industry usage but differ in focus. Engineers handle technical system management, while Analysts focus on system requirements and optimization. Both roles are vital in maintaining and improving mainframe operations in large organizations.

What are the common challenges faced by Mainframe Systems Engineers when supporting legacy systems, and how can they be addressed?

Mainframe Systems Engineers often encounter challenges such as integrating legacy mainframe systems with modern technologies, managing system upgrades without disrupting business operations, and ensuring security compliance. Addressing these challenges typically involves thorough change management processes, continuous learning to stay updated on both mainframe and emerging technologies, and collaborating closely with cross-functional teams like application developers and cybersecurity experts. Building strong documentation and leveraging automation tools can also help streamline maintenance and minimize errors.

What are Mainframe Systems Engineers?

Mainframe Systems Engineers are IT professionals who design, implement, manage, and maintain mainframe computer systems used by large organizations for critical applications and data processing. They ensure the mainframe environment runs efficiently, securely, and reliably, handling tasks such as system upgrades, performance tuning, troubleshooting, and disaster recovery. Mainframe Systems Engineers often work with operating systems like IBM z/OS, manage storage and networking, and provide technical support for mainframe-based applications.

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

To thrive as a Mainframe Systems Engineer, you need expertise in mainframe operating systems (such as z/OS), systems programming, and performance tuning, often supported by a degree in computer science or a related field. Familiarity with IBM mainframe tools, JCL, RACF, and monitoring software, as well as relevant certifications like IBM Certified System Programmer, is typically required. Strong analytical thinking, problem-solving, and effective communication help engineers manage complex systems and collaborate with IT teams. These skills ensure the reliability, security, and efficiency of critical enterprise computing environments.
What are popular job titles related to Mainframe Systems Engineer jobs in Wisconsin? For Mainframe Systems Engineer jobs in Wisconsin, the most frequently searched job titles are:
What job categories do people searching Mainframe Systems Engineer jobs in Wisconsin look for? The top searched job categories for Mainframe Systems Engineer jobs in Wisconsin are:
Mainframe Systems Engineer jobs near you
Software Integration Engineer

Software Integration Engineer

TIER4 GROUP

Franklin, WI • Hybrid

$96K - $130K/yr

Full-time

Posted yesterday

Be an early applicant

Job description

Title: Software Integration Engineer

Location: Franklin, WI 

Type: Hybrid (3 days onsite per week) 

Duration: ASAP - December 2025 

Perks: Competitive Rates, Benefits, free daily lunch when onsite 


About the Role:

Join our Messaging team to manage and enhance IBM MQ infrastructure, supporting reliable communication across systems. This role involves implementing approved architecture patterns, developing integration solutions, and contributing to continuous delivery pipelines.


Key Responsibilities:

  • IBM MQ Management: Configure and manage IBM MQ for secure, reliable communication.
  • Software Development: Build and maintain infrastructure applications using Python and Java.
  • Scripting & Automation: Create Shell Scripts to streamline tasks and enhance integrations.
  • Version Control: Utilize Git for source code management and collaboration.
  • Reverse Engineering: Analyze and document existing systems for improvements and troubleshooting.
  • Documentation: Maintain comprehensive technical documentation.
  • CI/CD: Develop and manage CI/CD pipelines for efficient software delivery.
  • API Development: Design and maintain APIs for seamless system integration.
  • Integration Patterns: Apply best practices to ensure maintainable system communication.


Qualifications:

  • Education: Bachelor’s degree in Computer Science, IT, or related field.
  • Experience:
  • 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 with CI/CD tools and integration patterns.
  • Additional Skills:
  • Problem-solving and troubleshooting expertise.
  • Effective communication and collaboration skills.
  • Knowledge of cloud platforms (AWS preferred).
  • Experience with messaging tools like SQS or RabbitMQ is a plus.


Technical Skills:

  • Must-Have: IBM MQ, Linux Shell Scripting, Python, Reverse Engineering, Analytical Skills.
  • Nice-to-Have: AWS or other cloud platforms.