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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 ...

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 · 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 · 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

Springfield, IL · On-site

$48.50 - $62.50/hr

The Mainframe Developer will support Barrow Wise's State of Illinois project and perform the ... Ensure software applications meet all performance and security standards * Research new ...

Mainframe Developer

Chicago, IL · 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

Lovejoy, IL

$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

Maryville, IL · On-site

$45.75 - $59/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

Mitchell, IL · On-site

$45.75 - $59/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 · 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 ...

Mainframe Support Engineer

Dupo, IL

$45.25 - $58.25/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 ...

Senior Mainframe DevOps Architect

Lisle, IL

$127K - $173K/yr

Own the comprehensive solution architecture for enterprise customer engagements involving Broadcom mainframe software products and modern DevOps frameworks. * Architecture & Design Workshops: Lead ...

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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 14, 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 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 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 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 1% Internship, 86% Full Time, 10% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $107,587 per year, or $51.7 per hour.

R&D Engineer Software 3

Broadcom

Lisle, IL • On-site, Remote

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 21 days ago


Broadcom rating

8.7

Company rating: 8.7 out of 10

Based on 23 frontline employees who took The Breakroom Quiz

19th of 157 rated electronics manufacturers


Job description

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Job Description:

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 Security and Compliance team. In this role, you will be a key member of the development team and will focus on building, testing, and supporting leading-edge Mainframe Security solutions used by many of the world's largest companies.

People who do well on this team are self-motivated engineers with a passion for our business and for technology innovation.

This position is concentrated on the mainframe platform, with development in Assembler language.

In this role, you will:

  • Design and develop:Create high-quality software design and architecture for applications on the mainframe platform.

  • Build and implement:Produce, test, and debug functional software solutions, leveraging your Mainframe expertise to modernize our enterprise software.

  • Collaborate:Partner with product management and fellow software engineers in an Agile environment to define software requirements and deliver solutions.

  • Automate:Increase efficiency by automating tasks through appropriate tools and scripting.

  • Drive innovation:Contribute to a fast-paced environment with a passion for continuous improvement and technology innovation.

Required Skills & Competencies:

Must have:

  • Bachelors in Engineering and 5+ years of related experience or Masters degree in Engineering and 3+ years of related experience

  • Proven Mainframe knowledge and skills.

  • IBM Assembler Language (HLASM) proficiency.

  • z/OS Operating system familiarity.

  • Source control systems experience (Endevor etc.)

  • Strong analytical, problem solving and debugging skills.

  • Experience/Knowledge of z/VM Systems Programming and/or IMS Systems Programming is a plus.

Good to have:

  • Experience working with an ESM(External Security Manager) and/or other mainframe products and systems is a plus.

  • Experience with online z/OS debugger is desirable (XDC / IPCS).

  • Proficiency in Metal C, and JCL.

  • Scripting language experience is desirable.

Preferred Education:

Bachelor's degree in Computer Science, Electrical Engineering or equivalent in a related field.

Work Experience:

Five or more years of experience in software development or a related field.

Business Travel and Physical Demands:

  • No (or minimal) business travel is expected for this position.

  • Office environment. No special physical demands are required.

Why join our team?

At Broadcom, we value engineers who are self-motivated, passionate, and driven to innovate. Our team offers:

  • High impact:The opportunity to have a significant impact on our Mainframe product teams by building the foundational tools that modernize our software.

  • Great team culture:The Mainframe Software Division is known for its collaborative and supportive workplace culture.

  • Competitive compensation:We offer competitive salaries, valuable equity options, and comprehensive benefits.

Legal authorization to work in the U.S. is required


Compensation and Benefits


The annual base salary range for this position is USD 91,100.00 To USD 146,000.00

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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