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Mainframe Developer Jobs in Milwaukee, WI (NOW HIRING)

Bank is seeking a z/OS Systems Programmer that has extensive experience in mainframe technologies with an emphasis on installation/upgrading, tuning, and troubleshooting of z/OS and third-party ...

Systems Engineer - Senior

Franklin, WI · On-site

$97K - $132K/yr

Conduct Distributed, Cloud, and Mainframe platform DR tests * Disaster Recovery gap identification ... Bachelors in Computer Science / Computer Engineering * 5+ years of professional experience required

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 ...

Java Lead

Franklin, WI · On-site

$60K - $135K/yr

Leveraging our holistic portfolio of capabilities in consulting, design, engineering, and ... Mainframe skills * Working experience with most Mainframe technologies including Cobol, DB2, CICS ...

Software Engineer 2 - DevOps

Brookfield, WI · On-site +1

$98K - $115K/yr

Lead DevOps Community of Excellence sessions. * Perform code reviews. * Review and approve intake ... Experience with mainframe development and SDLC, including a solid understanding of batch, online ...

Lead DevOps Community of Excellence sessions. * Perform code reviews. * Review and approve intake ... Experience with mainframe development and SDLC, including a solid understanding of batch, online ...

Develop clear, detailed mapping documentation and pseudocode to support technical programming teams ... Analyze IBM mainframe file extracts using advanced Excel functionality, including formulas, pivot ...

Demonstrated ability to adapt to different mainframe/client environments and mainframe tool sets. Bonus if you have: * Minimum of 10 years experience working on FIS Systematics applications with ...

The Software Developer will provide full application life cycle development including but not limited to analysis, design, programming, system implementation, training, and documentation for ...

The Software Developer will provide full application life cycle development including but not limited to analysis, design, programming, system implementation, training, and documentation for ...

Our company provides application analysis, design, development and programming, software engineering, systems development, testing, integration, and implementation, and management consulting services ...

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Mainframe Developer information

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How much do mainframe developer jobs pay per hour?

As of Jun 10, 2026, the average hourly pay for mainframe developer 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 the difference between Mainframe Developer vs Mainframe Analyst?

AspectMainframe DeveloperMainframe Analyst
Primary RoleDesigning, coding, and testing mainframe applicationsAnalyzing and maintaining existing mainframe systems
Skills & CertificationsCOBOL, JCL, DB2, certifications like IBM Certified DeveloperCOBOL, JCL, system analysis, troubleshooting skills
Work EnvironmentDevelopment teams, coding in mainframe environmentsSupport teams, system analysis, user support
Industry UsageFinancial services, insurance, government agenciesFinancial institutions, healthcare, government agencies

While Mainframe Developers focus on creating and implementing mainframe applications, Mainframe Analysts primarily analyze, troubleshoot, and maintain existing systems. Both roles require similar technical skills and often work within the same industries, but their core responsibilities differ in development versus support and analysis.

What are some common challenges Mainframe Developers face when integrating legacy systems with modern applications?

Mainframe Developers often encounter challenges such as ensuring compatibility between legacy systems and newer technologies, managing data migration without disrupting business operations, and maintaining the security of sensitive data. Effective communication with cross-functional teams, such as application developers and infrastructure engineers, is essential to address these challenges. Staying updated on both mainframe and modern programming practices helps ease integration and ensures long-term system reliability.

What are Mainframe Developers?

Mainframe Developers are specialized software engineers who design, develop, maintain, and troubleshoot applications on mainframe computer systems, such as IBM's z/OS. They typically work with languages like COBOL, JCL, and CICS, and are responsible for ensuring the performance, security, and reliability of mission-critical business applications. Mainframe Developers are commonly employed in industries like banking, insurance, and government, where large-scale, high-volume transaction processing is essential.

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

To thrive as a Mainframe Developer, you need expertise in programming languages such as COBOL, JCL, and SQL, along with a strong understanding of mainframe operating systems and batch processing concepts. Familiarity with tools like IBM z/OS, DB2, CICS, and version control systems is typically required, and certifications from IBM or related organizations can be beneficial. Strong problem-solving abilities, attention to detail, and effective communication skills help Mainframe Developers excel in troubleshooting and collaborating with cross-functional teams. These skills are crucial for maintaining, optimizing, and modernizing legacy systems that are vital to many large organizations’ operations.
What are popular job titles related to Mainframe Developer jobs in Milwaukee, WI? For Mainframe Developer jobs in Milwaukee, WI, the most frequently searched job titles are:
What job categories do people searching Mainframe Developer jobs in Milwaukee, WI look for? The top searched job categories for Mainframe Developer jobs in Milwaukee, WI are:
What cities near Milwaukee, WI are hiring for Mainframe Developer jobs? Cities near Milwaukee, WI with the most Mainframe Developer job openings:
Infographic showing various Mainframe Developer job openings in Milwaukee, WI as of June 2026, with employment types broken down into 62% Full Time, 25% Part Time, and 13% Contract. Highlights an 83% Physical, 7% Hybrid, and 10% Remote job distribution, with an average salary of $109,388 per year, or $52.6 per hour.
z/OS Systems Engineer

z/OS Systems Engineer

US Bank

Brookfield, WI • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 28 days ago


U.S. Bank rating

8.2

Company rating: 8.2 out of 10

Based on 345 frontline employees who took The Breakroom Quiz

38th of 141 rated banks


Job description

At U.S. Bank, we're on a journey to do our best. Helping the customers and businesses we serve to make better and smarter financial decisions and enabling the communities we support to grow and succeed. We believe it takes all of us to bring our shared ambition to life, and each person is unique in their potential. A career with U.S. Bank gives you a wide, ever-growing range of opportunities to discover what makes you thrive at every stage of your career. Try new things, learn new skills and discover what you excel at-all from Day One.

Job Description

U.S. Bank is seeking a z/OS Systems Programmer that has extensive experience in mainframe technologies with an emphasis on installation/upgrading, tuning, and troubleshooting of z/OS and third-party software. This individual should be self-motivated and driven to help contribute toward the success of our mainframe technology initiatives. This person will work in a team environment supporting multiple systems in a highly redundant and robust mainframe environment. Participate in project teams to implement new capabilities and technologies. Suggest new or alternative products and solutions to modernize and streamline our environment. Lead projects and efforts across multiple teams.

Responsibilities Include

-Create and follow a standardized product upgrade methodology

-Lead/participate in resolution of complex z/OS problems

-Provide support for z/OS across multiple Sysplex's and data centers

-Collaborate with storage management, performance tuning/capacity planning, security, networking and development teams

-Use SMPE to install/update z/OS software

-Participate in DR recovery and testing

-Configure both z/OS and third-party software

-Document software and hardware configurations and settings

-Work with vendors for system support and problem resolution

-Provide 24X7 on-call support as part of a team rotation

Successful applicants will exemplify US Bank's ethical principles of uncompromising integrity, respect for others, accountability for decisions and actions, and good citizenship.

Basic Qualifications
- Bachelor's degree, or equivalent work experience
- At least 5 years of experience within a total information technology (IT) environment
- At least 10 years of experience with the design, development and support of technology infrastructure

Preferred Skills/Experience:

Extensive experience in:

-Mainframe technologies including hardware -Technical troubleshooting of z/OS issues -Mainframe monitoring tools as such Mainview and RMF

-Complex z/OS Sysplex environments

-Security managers such as RACF

-IBM GDPS

Subject matter expert in:

-z/OS installation and upgrade processes

-Subsystems such as CICS, IMS, JES2, MQ, and DB2

-Extensive Knowledge in z/OS System parameters and settings

-Configuration of Coupling Facilities

-Mainframe Storage configurations

-Supporting third-party software products such as products from CA/Broadcom, BMC, Compuware

-Knowledge of z/OS Internals

-Mainframe hardware and components

-Assembler and REXX programming knowledge

-Ability to learn new technologies related to automation such as python

Location expectations
This role requires working from a U.S. Bank location three (3) or more days per week.

If there's anything we can do to accommodate a disability during any portion of the application or hiring process, please refer to ourdisability accommodations for applicants.

Benefits:

Our approach to benefits and total rewards considers our team members' whole selves and what may be needed to thrive in and outside work. That's why our benefits are designed to help you and your family boost your health, protect your financial security and give you peace of mind. Our benefits include the following:

  • Healthcare (medical, dental, vision)

  • Basic term and optional term life insurance

  • Short-term and long-term disability

  • Pregnancy disability and parental leave

  • 401(k) and employer-funded retirement plan

  • Paid vacation (from two to five weeks depending on salary grade and tenure)

  • Up to 11 paid holiday opportunities

  • Adoption assistance

  • Sick and Safe Leave accruals of one hour for every 30 worked, up to 80 hours per calendar year unless otherwise provided by law

Review our full benefits available by employment status here.

U.S. Bank is an equal opportunity employer. We consider all qualified applicants without regard to race, religion, color, sex, national origin, age, sexual orientation, gender identity, disability or veteran status, and other factors protected under applicable law.

E-Verify

U.S. Bank participates in the U.S. Department of Homeland Security E-Verify program in all facilities located in the United States and certain U.S. territories. The E-Verify program is an Internet-based employment eligibility verification system operated by the U.S. Citizenship and Immigration Services. Learn more about theE-Verify program.

The salary range reflects figures based on the primary location, which is listed first. The actual range for the role may differ based on the location of the role. In addition to salary, U.S. Bank offers a comprehensive benefits package, including incentive and recognition programs, equity stock purchase 401(k) contribution and pension (all benefits are subject to eligibility requirements). Pay Range: $105,400.00 - $124,000.00

U.S. Bank will consider qualified applicants with arrest or conviction records for employment. U.S. Bank conducts background checks consistent with applicable local laws, including the Los Angeles County Fair Chance Ordinance and the California Fair Chance Act as well as the San Francisco Fair Chance Ordinance. U.S. Bank is subject to, and conducts background checks consistent with the requirements of Section 19 of the Federal Deposit Insurance Act (FDIA). In addition, certain positions may also be subject to the requirements of FINRA, NMLS registration, Reg Z, Reg G, OFAC, the NFA, the FCPA, the Bank Secrecy Act, the SAFE Act, and/or federal guidelines applicable to an agreement, such as those related to ethics, safety, or operational procedures.

Applicants must be able to comply with U.S. Bank policies and procedures including the Code of Ethics and Business Conduct and related workplace conduct and safety policies.

Posting may be closed earlier due to high volume of applicants.


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About U.S. Bank

Sourced by ZipRecruiter

U.S. Bank is a reputable and established financial institution that plays a significant role in the banking sector. With a history spanning over 150 years, U.S. Bank has built a strong foundation of trust and reliability. As a comprehensive bank, they offer a wide array of financial products and services to cater to the diverse needs of their customers, including individuals, businesses, and communities. Customer satisfaction is of utmost importance to U.S. Bank. They prioritize delivering exceptional service and fostering long-term relationships with their clients. Through their extensive network of branches and advanced digital banking platforms, U.S. Bank ensures convenient access to their services, empowering customers to manage their finances efficiently and securely.

Industry

Banking and credit intermediation

Company size

10,000+ Employees

Headquarters location

Minneapolis, MN, US

Year founded

1863

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