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Senior Mainframe Developer Jobs in Wisconsin (NOW HIRING)

Senior CA-Gen Developer

Madison, WI · On-site

$55 - $72.50/hr

Senior CA-Gen Developer Onsite in Madison, WI 12+ month Video Interview Need local to Wisconsin ... a mainframe DB2 client-server environment * Ability to independently perform a variety of ...

New

Senior Automation Engineer

Milwaukee, WI · Hybrid

$102K - $134K/yr

Collaborate closely with Java developers, Mainframe engineers, product managers, and project ... As an experienced Senior Automation Engineer ,you will have the ability to share new ideas and ...

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

Sr. Java Developer

Madison, WI

$57.75 - $73.50/hr

Experience building and deploying large scale Java web applications Conceptual knowledge of information technologies and methodologies in mainframe, midrange, Web and PC computing environments ...

The Senior Data Specialist provides end-to-end support for data transfers associated with ... Develop clear, detailed mapping documentation and pseudocode to support technical programming teams.

BUYER/PLANNER

Richland Center, WI · On-site

$59K - $81K/yr

You will coordinate purchasing activities with manufacturing and engineering departments to acquire ... Review, analyzes and resolves expectations and error reports from mainframe planning and buying ...

Senior Mainframe Developer information

See Wisconsin salary details

$38

$58

$67

How much do senior mainframe developer jobs pay per hour?

As of Jun 21, 2026, the average hourly pay for senior mainframe developer in Wisconsin is $58.19, according to ZipRecruiter salary data. Most workers in this role earn between $54.62 and $63.56 per hour, depending on experience, location, and employer.

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

To thrive as a Senior Mainframe Developer, you need deep expertise in mainframe programming languages (like COBOL, JCL, and PL/I), systems analysis, and a strong understanding of legacy application architectures, typically supported by a degree in computer science or related experience. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is essential, along with relevant certifications like IBM Certified System Programmer. Excellent problem-solving, communication, and leadership skills help you collaborate effectively and mentor junior developers. These skills are crucial for maintaining mission-critical systems, ensuring reliability, and guiding modernization efforts in complex enterprise environments.

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

Senior Mainframe Developers often encounter challenges when integrating legacy mainframe systems with newer technologies such as cloud platforms, APIs, or microservices. These challenges include ensuring data consistency, maintaining system security, and minimizing downtime during migrations. Collaboration with cross-functional teams, such as infrastructure engineers and application developers, is key to developing seamless integration solutions. Staying up-to-date with modernization tools and best practices can help address these complexities and support the organization's digital transformation goals.

What are Senior Mainframe Developers?

Senior Mainframe Developers are experienced professionals who design, develop, and maintain mainframe systems—large-scale computers used by organizations for critical applications, bulk data processing, and enterprise resource planning. They are proficient in languages like COBOL, JCL, and Assembler, and often work with databases and transaction processing systems. Their responsibilities include troubleshooting system issues, optimizing performance, mentoring junior developers, and ensuring the reliability and security of mainframe operations.
What are the most commonly searched types of Mainframe Developer jobs in Wisconsin? The most popular types of Mainframe Developer jobs in Wisconsin are:
What are popular job titles related to Senior Mainframe Developer jobs in Wisconsin? For Senior Mainframe Developer jobs in Wisconsin, the most frequently searched job titles are:
What job categories do people searching Senior Mainframe Developer jobs in Wisconsin look for? The top searched job categories for Senior Mainframe Developer jobs in Wisconsin are:
What cities in Wisconsin are hiring for Senior Mainframe Developer jobs? Cities in Wisconsin with the most Senior Mainframe Developer job openings:
Infographic showing various Senior Mainframe Developer job openings in Wisconsin as of June 2026, with employment types broken down into 10% As Needed, 42% Full Time, 12% Part Time, 12% Temporary, and 24% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $121,038 per year, or $58.2 per hour.

Senior CA-Gen Developer

Kanak Elite Services Inc

Madison, WI • On-site

$55 - $72.50/hr

Contractor

Posted 2 days ago


Job description

Senior CA-Gen Developer

Onsite in Madison, WI

12+ month

Video Interview

Need local to Wisconsin candidate only with Wisconsin project.

Top Skills & Years of Experience

  • 8+ years of experience with CA-Gen development analysis and design in a mainframe DB2 client-server environment
  • Ability to independently perform a variety of complicated IT analysis and programming tasks with a wide degree of creativity and latitude
  • Senior-level experience managing multiple large, complex software development efforts with greater impact to the enterprise