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Mainframe Software Engineer Jobs in Illinois (NOW HIRING)

Broadcom's Mainframe Software Division (MSD) is looking for a talented and motivated Software Engineer with a passion for building high-quality applications using agile practices to join our ...

R&D Engineer Software 3

Lisle, IL ยท On-site

$91.10 - $146/hr

Broadcom's Mainframe Software Division (MSD) is looking for a talented and motivated Software Engineer with a passion for building high-quality applications using agile practices to join our ...

Broadcom's Mainframe Software Division is seeking a talented R&D Software Engineer to join their Mainframe Security and Compliance team. The role involves building, testing, and supporting security ...

Broadcom's Mainframe Software Division (MSD) is looking for a talented and motivated Software Engineer with a passion for building high-quality applications using agile practices to join our ...

Mainframe/Cobol developer

Bloomington, IL ยท On-site

$47 - $60.50/hr

Company Description We specialize in Staffing, Consulting, Software Development, and Training along ... Mainframe/Cobol developer * Resource needed with industry knowledge/experience of IBM's Rational ...

Mainframe Developer

Chicago, IL ยท On-site

$50.50 - $65/hr

MAINFRAME DEVELOPER Location: Chicago, IL (Full Onsite, Open to Relocating Candidates) Visa: Any visa except H1B We're looking for a Mainframe Developer to join our team! If you're experienced with ...

About the Role Broadcom's Mainframe Software Division (MSD) is the industry leader in mainframe ... We are looking for a seasoned Software Engineer who has navigated complex production mainframe ...

Mainframe Developer

Chicago, IL ยท On-site

$50.50 - $65/hr

Mainframe Developer (12+ YEARS) Location: Chicago, IL * Required Years of Experience: At least 12+ years of relevant experience * 12+ years of experience as a Mainframe Developer Required Skills:

Mainframe Support Engineer

Brooklyn, IL ยท On-site

$47.75 - $61.50/hr

We are seeking a Mainframe Support Engineer to provide L2/L3 production support for enterprise mainframe applications. The ideal candidate will have strong experience with COBOL, DB2, VSAM, Batch ...

Mainframe Support Engineer

Lovejoy, IL ยท On-site

$48.25 - $62.25/hr

We are seeking a Mainframe Support Engineer to provide L2/L3 production support for enterprise mainframe applications. The ideal candidate will have strong experience with COBOL, DB2, VSAM, Batch ...

Mainframe Support Engineer

Madison, IL ยท On-site

$46.75 - $60/hr

We are seeking a Mainframe Support Engineer to provide L2/L3 production support for enterprise mainframe applications. The ideal candidate will have strong experience with COBOL, DB2, VSAM, Batch ...

Mainframe Support Engineer

Venice, IL ยท On-site

$46.75 - $60.25/hr

We are seeking a Mainframe Support Engineer to provide L2/L3 production support for enterprise mainframe applications. The ideal candidate will have strong experience with COBOL, DB2, VSAM, Batch ...

Mainframe Support Engineer

Hartford, IL ยท On-site

$46.25 - $59.50/hr

We are seeking a Mainframe Support Engineer to provide L2/L3 production support for enterprise mainframe applications. The ideal candidate will have strong experience with COBOL, DB2, VSAM, Batch ...

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Mainframe Software Engineer information

See Illinois salary details

$9

$51

$70

How much do mainframe software engineer jobs pay per hour?

As of Aug 24, 2026, the average hourly pay for mainframe software engineer in Illinois is $51.72, according to ZipRecruiter salary data. Most workers in this role earn between $45.67 and $58.70 per hour, depending on experience, location, and employer.

What does a mainframe software engineer do?

A Mainframe Software Engineer is responsible for designing, developing, maintaining, and troubleshooting software applications that run on mainframe computers. They work with languages such as COBOL, JCL, and Assembler, and often support critical business systems in industries like banking, insurance, and government. Their role may include modernizing legacy systems, ensuring data integrity, and optimizing system performance to meet organizational needs.

What are some common challenges mainframe software engineers face when integrating legacy systems with modern technologies?

Mainframe Software Engineers often encounter challenges when integrating legacy systems with newer technologies, such as ensuring compatibility between different programming languages and data formats. They may also need to address security vulnerabilities in older codebases and maintain system reliability during transitions. Effective collaboration with cross-functional teams, such as cloud specialists and business analysts, is essential to develop seamless solutions that meet organizational needs while minimizing downtime.

What are the key skills and qualifications needed to thrive as a mainframe software engineer, and why are they important?

To thrive as a Mainframe Software Engineer, you need expertise in mainframe programming languages (such as COBOL, JCL, and PL/I), a solid understanding of operating systems like z/OS, and often a relevant degree in computer science or a related field. Familiarity with mainframe tools, database systems (like DB2), and version control software, as well as certifications such as IBM Certified System Programmer, are highly valuable. Strong analytical thinking, attention to detail, and effective problem-solving skills help you excel in maintaining and optimizing complex legacy systems. These competencies are crucial for ensuring the reliability, efficiency, and modernization of critical enterprise applications that rely on mainframe environments.

What are the most commonly searched types of Mainframe Software Engineer jobs in Illinois?

The most popular types of Mainframe Software Engineer jobs in Illinois are:

What are popular job titles related to Mainframe Software Engineer jobs in Illinois?

For Mainframe Software Engineer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Mainframe Software Engineer jobs in Illinois look for?

The top searched job categories for Mainframe Software Engineer jobs in Illinois are:

Infographic showing various Mainframe Software Engineer job openings in Illinois as of August 2026, with employment types broken down into 74% Full Time, and 26% Contract. Highlights an 74% In-person, and 26% Remote job distribution, with an average salary of $107,587 per year, or $51.7 per hour.

Mainframe Software Development Engineer In Test Software

Front Door Defense

Lisle, IL โ€ข On-site

$109.70 - $175.50/hr

Other

Medical, Dental, Vision, Retirement, PTO

Posted 5 days ago


Job description

Mainframe Software Development Engineer In Test Own end-to-end mainframe testing strategy and automation for release readiness.

Location: Lisle, Illinois, United States

Compensation: $109,700 - 175,500 USD / year

Job Tags: Software

About The Role Software Development Engineer In Test

Experienced Software Development Engineer in Test: Plans, designs, develops and executes tests for software enhancements and fixes/patches.

Knowledge: An experienced professional with a full understanding of area of specialization. This job is a fully qualified, career-oriented, journey-level position. The position involves testing and validation of mainframe-based applications.

Job Complexity: Works on problems of diverse scope where analysis of data requires evaluation of identifiable factors. Demonstrates good judgment in selecting methods and techniques for obtaining solutions. Networks with senior internal and external personnel in own area of expertise.

Supervision: Normally receives little instruction on day-to-day work, general instructions on new assignments.

Experience: Typically requires a minimum of 5 years of relevant industry experience.

We are looking for experienced Software Engineers in Test to participate in an Agile development environment producing functional software solutions for delivery to our customers. In this role, you should be able to work independently with little supervision while also collaborating with team members. You should have excellent organization and problem-solving skills, and experience in Agile development methodologies. The individual and team goal will be to develop high-quality software that is aligned with user needs and business objectives in a mainframe computing environment.

Responsibilities
  • Performing validation and verification testing of both new features and product fixes
  • Developing and executing high-quality software tests in a continuous integration environment
  • Developing, implementing, and maintaining robust test automation pipelines
  • Assessing code coverage and identifying/resolving testing gaps
  • Automating tasks through appropriate tools and scripting
  • Ensuring test pipelines are up to date with latest technologies
  • Collaborating and providing Quality Assurance subject matter expertise in an Agile team environment
  • Coordination with management and internal teams
Requirements
  • Practical experience in mainframe development and testing environment
  • Analytical mind with problem-solving aptitude
  • Proficiency with Job Control Language (JCL) for batch workload
  • Proficiency in Scripting languages (Python, JSON, REXX)
  • Proficiency in CI/CD test automation frameworks (Jenkins)
  • Strong understanding of Security protocols and ESMs
  • Experience with REST API Automation (RestAssured) is a plus
  • Experience with Java and Javascript/Typescript is a plus
  • Experience with Junit/TestNG framework is a plus
  • Experience with JMeter for Stress and Load testing is a plus

The annual base salary range for this position is USD 109,700.00 To USD 175,500.00. As a valued member of our team, you'll be eligible for a discretionary annual bonus and the opportunity to receive not only a competitive new hire equity grant, but also annual equity awards, connecting your success directly to the company's growth. All subject to relevant plan documents and award agreements.

Broadcom offers a competitive and comprehensive benefits package: Medical, dental and vision plans, 401(K) participation including company matching, Employee Stock Purchase Program (ESPP), Employee Assistance Program (EAP), company paid holidays, paid sick leave and vacation time. The company follows all applicable laws for Paid Family Leave and other leaves of absence.

Broadcom is proud to be an equal opportunity employer. We will consider qualified applicants without regard to race, color, creed, religion, sex, sexual orientation, national origin, citizenship, disability status, medical condition, pregnancy, protected veteran status or any other characteristic protected by federal, state, or local law. We will also consider qualified applicants with arrest and conviction records consistent with local law.

If you are located outside USA, please be sure to fill out a home address as this will be used for future correspondence.

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