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Senior Mainframe Software Engineer Jobs in Wisconsin

Mainframe Developer

Milwaukee, WI · Hybrid

$48.25 - $62/hr

Recruiting for this role ends on June 10th, 2026 Qualifications Required * 4+ years of experience in software, systems, or embedded engineering * 4+ years of experience in Mainframe application ...

Senior Software Engineer

Madison, WI · On-site

$123K - $162K/yr

The Senior Software Engineer contributes through deep technical expertise, hands-on development, and technical guidance, without direct people management responsibilities. In this role, the ...

Senior Software Engineer

Madison, WI · On-site

$123K - $162K/yr

AMETEK is a leading global provider of industrial technology solutions, and they are seeking a Senior Software Engineer to act as a technical expert for complex software components. The role involves ...

Senior Software Engineer

Madison, WI

$123K - $162K/yr

The Senior Software Engineer acts as a recognized technical expert and a reference for complex software components. The Senior Software Engineer contributes through deep technical expertise, handson ...

Job Senior Software Engineer

Madison, WI

$123K - $162K/yr

Senior Software Engineer Location: Madison, WI, US, 53711 Business Unit: Cameca Posting Date: May 20, 2026 The Senior Software Engineer acts as a recognized technical expert and a reference for ...

Senior Software Engineer

Waukesha, WI · On-site

$122K - $161K/yr

As a Senior Software Engineer, you will own the design, development, and delivery of next-generation compute solutions for Magnetic Resonance Imaging (MRI) scanners, working with cross-functional ...

Sr. Software Engineer

New Berlin, WI · On-site +1

$120K - $158K/yr

We are seeking a talented Senior Software Engineer to join our growing team. In this role, you will report to our Engineering lead and work with our engineering team to deliver high-quality features ...

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you an expert at developing software solutions from start to finish? Then you belong at Uline! Join ...

Senior Software Engineer

Pleasant Prairie, WI · On-site

$118K - $156K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you an expert at developing software solutions from start to finish? Then you belong at Uline! Join ...

Senior Software Engineer

Kenosha, WI · On-site

$119K - $157K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you an expert at developing software solutions from start to finish? Then you belong at Uline! Join ...

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Senior Mainframe Software Engineer information

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

To thrive as a Senior Mainframe Software Engineer, you need deep expertise in COBOL, JCL, DB2, and mainframe architecture, often backed by a degree in computer science or related fields and several years of relevant experience. Familiarity with tools like IBM z/OS, CICS, RACF, and version control systems is typically required, along with certifications like IBM Certified System Programmer as a plus. Strong analytical thinking, problem-solving ability, and effective communication are crucial soft skills for leading projects and collaborating with cross-functional teams. These skills ensure reliable, secure, and efficient operation of critical legacy systems that are foundational to many large organizations.

What are Senior Mainframe Software Engineers?

Senior Mainframe Software Engineers are experienced professionals who design, develop, maintain, and optimize software applications running on mainframe computer systems. They typically work with legacy programming languages such as COBOL, PL/I, or Assembler, and are responsible for ensuring the reliability, scalability, and security of critical business applications. Their role often includes troubleshooting complex issues, integrating new technologies with existing systems, and mentoring junior engineers. These specialists are essential for organizations that rely on mainframes for large-scale data processing and transaction management.

What are some common challenges faced by Senior Mainframe Software Engineers when integrating legacy systems with modern technologies?

Senior Mainframe Software Engineers often encounter challenges when bridging legacy mainframe systems with newer technologies, such as ensuring compatibility, maintaining data integrity, and managing security risks. These integrations typically require a deep understanding of both the existing mainframe environment and the modern platforms being adopted. Collaboration with cross-functional teams, including application developers, architects, and business analysts, is essential to design effective solutions and minimize disruptions. Staying current with industry best practices and emerging tools can help address these challenges and ensure a smooth transition.

What is the difference between Senior Mainframe Software Engineer vs Mainframe Developer?

AspectSenior Mainframe Software EngineerMainframe Developer
CredentialsBachelor's in Computer Science or related, often with certifications like IBM Certified SpecialistSimilar educational background, often with certifications in mainframe technologies
Work EnvironmentLarge enterprise IT departments, financial institutions, government agenciesSame as Senior Mainframe Software Engineer, often within similar industries
ResponsibilitiesDesign, develop, and oversee mainframe applications; lead projects; troubleshoot complex issuesDevelop and maintain mainframe applications; focus on coding and debugging

While both roles involve mainframe technologies and similar credentials, Senior Mainframe Software Engineers typically have more leadership responsibilities and oversee projects, whereas Mainframe Developers focus primarily on coding and application maintenance.

What are popular job titles related to Senior Mainframe Software Engineer jobs in Wisconsin? For Senior Mainframe Software Engineer jobs in Wisconsin, the most frequently searched job titles are:
What job categories do people searching Senior Mainframe Software Engineer jobs in Wisconsin look for? The top searched job categories for Senior Mainframe Software Engineer jobs in Wisconsin are:
What cities in Wisconsin are hiring for Senior Mainframe Software Engineer jobs? Cities in Wisconsin with the most Senior Mainframe Software Engineer job openings:
Mainframe Software Engineering Apprentice

Mainframe Software Engineering Apprentice

US Bank

Brookfield, WI • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 11 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

Join a team where integrity counts, success motivates, collaboration drives innovation, and everyone feels valued and included. U.S. Bank is looking for people who want more than just a job - but can also make a difference in the communities where they live and work.

Technology Services has an outstanding opportunity for early-career mainframe software engineer trainees for Brookfield, WI. or Cincinnati, OH. Upon hire and joining your sprint team, you will participate in a comprehensive 12-week training program, introducing you to COBOL, JCL and many software development tools used in creating and maintaining software applications in an agile environment.

After completing the initial 12-week training course, you will begin by applying the skills acquired by contributing toward the success of our technological initiatives. In this role you will be part of an agile team responsible for the analysis, design, testing, development, and maintenance of best-in-class software experiences. The mainframe software engineer is a self-motivated individual who can collaborate with a team and across the organization. You will learn to be adept with the agile software development lifecycle and DevOps principles to configure and develop application systems using existing and emerging technology platforms.

As an entry level mainframe software engineer, you will:

  • Be responsible for designing, developing, testing, operating, and maintaining products.

  • Take full stack ownership by consistently writing production-ready and testable code.

Consistently develop high-quality designs in alignment with established architectural best practices, considering scalability, reliability, and system performance when defining technical solutions.

  • Make sound design/coding decisions keeping customer experience in the forefront.

  • Take feedback from code reviews and apply changes to meet standards. Conducts code reviews to provide guidance on engineering best practices and compliance with development procedures.

  • Be accountable for ensuring all aspects of product development, follow compliance and security best practices.

  • Exhibit relentless focus on software reliability engineering standards embedded within development standards.

  • Embrace emerging technology opportunities and contribute to the best practices in support of the bank's technology transformation.

  • Contribute to a culture of innovation, collaboration, and continuous improvement.

  • Review tasks critically and ensure they are appropriately prioritized and sized for incremental delivery. Anticipate and communicate blockers and delays before they require escalation.

Basic Qualifications

  • Associate's degree and completion of a vocational program, or equivalent workexperience
  • Zero to two years of relevant experience

Preferred Skills/Experience

  • Able to communicate processes and results with all parties involved in the product team, including engineers, product owner, scrum master, third party vendors and customers.

  • Strong problem-solving and analytical skills

  • Excellent communication and interpersonal skills

  • Ability to learn new concepts and programming languages quickly.

This position is not eligible for Visa sponsorship.

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: $28.27 - $37.69

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.


What U.S. Bank employees say

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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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