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Mainframe Testing Jobs in Milwaukee, WI (NOW HIRING)

Fiserv, Inc.

Quality Assurance Engineer

Milwaukee, WI · On-site

... mainframe systems, on-prem and cloud environments. Detect, diagnose, and resolve performance ... Conduct functional, automated and regression testing during different phases of software ...

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Mainframe Testing information

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$52

$71

How much do mainframe testing jobs pay per hour?

As of Aug 22, 2026, the average hourly pay for mainframe testing in Milwaukee, WI is $52.59, according to ZipRecruiter salary data. Most workers in this role earn between $46.44 and $59.66 per hour, depending on experience, location, and employer.

What is mainframe testing?

A Mainframe Testing job involves validating and verifying applications running on mainframe systems to ensure they function correctly, efficiently, and securely. Testers perform various types of testing, including functional, integration, regression, and performance testing, using tools like JCL, COBOL, DB2, and CICS. They analyze test results, identify defects, and collaborate with developers to resolve issues. Mainframe testers need knowledge of batch processing, databases, and system interactions to ensure seamless operations. The role is critical in industries like banking, insurance, and healthcare, where mainframes handle high-volume transactions.

What are the key skills and qualifications needed to thrive in mainframe testing?

To thrive in Mainframe Testing, you need strong analytical abilities, a solid understanding of mainframe environments and programming languages like COBOL, JCL, and experience with testing methodologies. Familiarity with tools such as IBM Mainframe, CA7/Endevor, and mainframe testing frameworks, as well as ISTQB certification, is highly valuable. Attention to detail, strong problem-solving skills, and effective communication are essential soft skills in this role. These competencies help ensure that complex mainframe systems are thoroughly tested, reliable, and meet business requirements.

What are some common challenges faced by professionals working in mainframe testing?

Professionals in Mainframe Testing often encounter challenges such as understanding legacy code, dealing with limited documentation, and adapting to the evolving integration of mainframe and modern systems. Testers must also effectively validate large volumes of data, ensure compatibility across interconnected applications, and manage tight release deadlines. Collaborating closely with developers, business analysts, and operations teams is essential for clarifying requirements and troubleshooting issues. Successfully overcoming these challenges requires persistence, a willingness to learn, and strong teamwork skills.

How to be a mainframe tester?

To become a mainframe tester, you should have a strong understanding of mainframe environments, including COBOL, JCL, and DB2, along with testing tools like IBM Rational or CA Test Data Manager. Gaining experience in software testing, scripting, and understanding mainframe architecture is essential, often supported by certifications such as IBM Certified Solution Developer. Attention to detail and the ability to work with legacy systems are important in this role.

What are popular job titles related to Mainframe Testing jobs in Milwaukee, WI?

For Mainframe Testing jobs in Milwaukee, WI, the most frequently searched job titles are:

What job categories do people searching Mainframe Testing jobs in Milwaukee, WI look for?

The top searched job categories for Mainframe Testing jobs in Milwaukee, WI are:

Mainframe Testing jobs near you
Infographic showing various Mainframe Testing job openings in Milwaukee, WI as of August 2026, with employment types broken down into 71% Full Time, and 29% Contract. Highlights an 100% In-person job distribution, with an average salary of $109,388 per year, or $52.6 per hour.

ACCOUNTS PAYABLE GENERALIST, FCH - FINANCE

Froedtert

Menomonee Falls, WI

$19 - $23.75/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 25 days ago

Job description

Discover. Achieve. Succeed. #BeHere

Location: US:WI:MENOMONEE FALLS at our WOODLAND PRIME 400 facility.

This job is ON - SITE.

FTE: 1.000000

Standard Hours: 40.00

Shift: Flexible 1st shift between 7:30 am to 5 pm

Shift Details: Holidays: Weekends:

Job Summary:

Compiles and reviews accounts payable documents and prepares document batches for processing for timely payment of invoices; responds to employee and vendor inquiries. Processes electronic payments. Serves as a back up for running AP checks. Other duties as assigned.

EXPERIENCE DESCRIPTION:

Knowledge of mainframe computer processing is required.

A minimum of 1 year of accounts payable experience is preferred.

EDUCATION DESCRIPTION:

High School diploma or equivalent is preferred.

SPECIAL SKILLS DESCRIPTION:

Experience with Excel is preferred.

Perks & Benefits at Froedtert Health

Froedtert Health Offers a variety of perks & benefits to staff, depending on your role you may be eligible for the following:

  • Paid time off
  • Growth opportunity- Career Pathways & Career Tuition Assistance, CEU opportunities
  • Academic Partnership with the Medical College of Wisconsin
  • Referral bonuses
  • Retirement plan - 403b
  • Medical, Dental, Vision, Life Insurance, Short & Long Term Disability, Free Workplace Clinics
  • Employee Assistance Programs, Adoption Assistance, Healthy Contributions, Care@Work, Moving Assistance, Discounts on gym memberships, travel and other work life benefits available


The Froedtert & the Medical College of Wisconsin regional health network is a partnership between Froedtert Health and the Medical College of Wisconsin supporting a shared mission of patient care, innovation, medical research and education. Our health network operates eastern Wisconsin's only academic medical center and adult Level I Trauma center engaged in thousands of clinical trials and studies. The Froedtert & MCW health network, which includes ten hospitals, nearly 2,000 physicians and more than 45 health centers and clinics draw patients from throughout the Midwest and the nation.

We are proud to be an Equal Opportunity Employer who values and maintains an environment that attracts, recruits, engages and retains a diverse workforce. We welcome protected veterans to share their priority consideration status with us at 262-439-1961. We maintain a drug-free workplace and perform pre-employment substance abuse testing. During your application and interview process, if you have a need that requires an accommodation, please contact us at 262-439-1961. We will attempt to fulfill all reasonable accommodation requests.

Employment Type: FULL_TIME
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About Froedtert

Sourced by ZipRecruiter

Froedtert is a world-class healthcare organization based in Milwaukee, WI, United States. The company operates within the healthcare and wellness industry, providing a broad spectrum of medical services to the residents of southeastern Wisconsin and beyond. Froedtert was founded in 1980 and is an academic health network, which ripples an integrated affiliation with the Medical College of Wisconsin. The company prides itself on its cutting-edge treatments, sophisticated technology, and groundbreaking research. Froedtert’s mission is to advance health in the communities they serve, with a profound commitment towards patient care, education, research and community outreach.

Industry

Health care and social assistance

Company size

1,001 - 5,000 Employees

Headquarters location

Milwaukee, WI, US

Year founded

1980

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