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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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How much do mainframe testing jobs pay per hour?

As of Sep 13, 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.

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

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Mainframe Testing jobs near you
Infographic showing various Mainframe Testing job openings in Milwaukee, WI as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 82% Full Time, 14% Part Time, and 2% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $109,388 per year, or $52.6 per hour.

Systems Engineer - Senior

Franklin, WI • On-site

MARS Solutions Group
Recruiting and Staffing Services • 51 - 200 employees
Learn more about MARS Solutions Groupexternal

Contractor

Re-posted 11 days ago

Job description

MARS Solutions Group is looking for an experienced ONSITE Systems Engineer for a client located in Franklin, WI. Our client is a well-known and highly respected insurance financial organization seeking bright, tech-savvy talent.

Please email resume to Lance at lancet@marssg.com or call me at 414-629-1239.

Must have familiarity of modern technology platforms, architectures, and patterns (WebSphere, VMWare, AWS, Mainframe, and hyper-converged infrastructure)
 
Main focus of the work:
  • Provide guidance to build recovery procedures and execute various DR tests to recover technology services
  • Assess, identify, and aid in the remediation of critical risks to application, infrastructure, and enterprise recoverability
  • Create DR patterns for infrastructure services
  • Define realistic DR scenarios and facilitate the build of recovery procedures
  • Establish and enforce adherence to DR standards and best practices
  • Create and maintain application and technology recovery sequence
  • Technology resiliency testing (High Availability / Disaster Recovery/ Chaos testing)
  • Functional DR exercises to validate Business recovery capabilities
  • Conduct Distributed, Cloud, and Mainframe platform DR tests
  • Disaster Recovery gap identification and management of their remediation and closure
We are looking for:
  • Bachelors in Computer Science / Computer Engineering
  • 5+ years of professional experience required
  • Familiarity with enterprise technologies, including compute, storage, database, middleware, virtualization, AWS services, firewalls, VPN, and load balancers
  • Knowledge of methods used in performing risk analysis
  • Optimally interact with business and IT units to provide end-to-end disaster recovery solutions
  • Knowledge of Disaster and Cyber Threat Recovery
  • Experience participating in orchestrated enterprise planning methodologies (e.g., Agile)
  • Experience with Enterprise Technology planning and delivery software (e.g., JiraAlign, Jira)
  • Ability to self-teach, independently drive for answers
  • Effective at balancing multiple projects and priorities concurrently
  • Strong interpersonal and communication skills in order to work with all levels within the business and IT organizations