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Mainframe Software Engineer Jobs in Illinois (NOW HIRING)

Mainframe Software Development Engineer

Lisle, IL · On-site

$48.25 - $62.25/hr

Broadcom is a leading technology company, and they are seeking an experienced Software Development Engineer focused on mainframe software development. The role involves planning, designing ...

... Engineering and 6+ years of related experience Nice to have: * Expertise on Mainframe extensible frameworks such as ZOWE and dealing with pass tickets, certificates, keyrings * Experience in software ...

Mainframe Software Development Engineer

Lisle, IL · On-site

$48.25 - $62.25/hr

Broadcom is looking for experienced Software Engineers to produce and implement functional software solutions for delivery to customers. This role involves development on existing mainframe-based ...

Z/OS Mainframe System Engineer

Chicago, IL · On-site

$56.75 - $72.25/hr

This role combines hands-on technical expertise in mainframe hardware and software with strong ... IBM Assembler Language programming * Parallel Sysplex clustering technology * Unix System Services ...

Mainframe Developer

Chicago, IL · On-site

$50.50 - $65/hr

Proficient with the various mainframe development tools and software including zEKE, CA7, Changeman, Endevor, CA-View, File-Aid, and Abend-Aid * Expert knowledge on mainframe programming languages ...

R&D Software Engineer

Lisle, IL · On-site

$10K - $172K/mo

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 (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 /DB2- ZOS Developer

Chicago, IL · On-site

$50.50 - $65/hr

Mainframe /DB2- ZOS Developer Location: Chicago, IL (onsite) Duration: 3 months DB2 Systems ... Responsibilities include software installation, system tuning, monitoring of system performance ...

Mainframe Developer - Natural/Adabas

Chicago, IL · On-site

$50.50 - $65/hr

Local Candidates Only Mainframe Developer - Natural/Adabas 8+ years exp • Programming Languages ... Familiarity with Software AG's Adabas database and Natural programming language is often required.

Mainframe/Cobol developer

Bloomington, IL

$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 Senior Developer

Chicago, IL · On-site

$99K - $169K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing, maintaining, upgrading, and supporting various system software products for TNT's z/OS operating system ...

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 ...

Mainframe Senior Developer

Chicago, IL · On-site

$99K - $169K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing, maintaining, upgrading, and supporting various system software products for TNT's z/OS operating system ...

Mainframe Senior Developer

Chicago, IL · On-site

$99K - $169K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing, maintaining, upgrading, and supporting various system software products for TNT's z/OS operating system ...

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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 Jul 1, 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 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 June 2026, with employment types broken down into 91% Full Time, 7% Part Time, and 2% Nights. Highlights an 83% Physical, 6% Hybrid, and 11% Remote job distribution, with an average salary of $107,587 per year, or $51.7 per hour.
Mainframe Software Development Engineer

Mainframe Software Development Engineer

Broadcom

Lisle, IL • On-site

$48.25 - $62.25/hr

Full-time

Posted 8 days ago


Key responsibilities

  • Develop high-quality software design and architecture for mainframe systems.

  • Produce, test, and debug software solutions aligned with user needs and business objectives.

  • Provide peer leadership and collaborate with product management, customers, and internal teams within an Agile environment.


Broadcom rating

8.7

Company rating: 8.7 out of 10

Based on 23 frontline employees who took The Breakroom Quiz

11th of 141 rated electronics manufacturers


Job description

Job Summary:
Broadcom is a leading technology company, and they are seeking an experienced Software Development Engineer focused on mainframe software development. The role involves planning, designing, developing, and testing software systems or applications, with a strong emphasis on producing high-quality software solutions aligned with user needs and business objectives.
Responsibilities:
• Developing high-quality software design and architecture
• Producing, testing and debugging software solutions
• Providing peer leadership in an Agile team environment
• Technical interaction with product management and customers
• Coordination with management and internal teams
• Automating tasks through appropriate tools and scripting
• Performing validation and verification testing
• Ensuring software is up-to-date with latest technologies
Qualifications:
Required:
• Bachelor's degree in engineering/computer science and 5+ years of related experience or Masters degree in engineering/computer science and 3+ years of related experience
• Proven Mainframe knowledge and skills
• Proficiency in IBM Assembler language and Metal C programming languages
• Strong understanding of security protocols and Security ESMs
• z/OS Operating system familiarity
• Source control systems experience (Endevor)
• Interactive debugging tool (XDC) and dump reading experience
• Analytical mind with problem-solving aptitude
• Database design and SQL skills
• Experience developing/utilizing test automation
Preferred:
• Familiarity with Java programming language is a plus
Company:
Broadcom is a designer, developer, and global supplier of a broad range of analog and digital semiconductor connectivity solutions. Founded in 1991, the company is headquartered in Palo Alto, USA, with a team of 10001+ employees. The company is currently Late Stage.

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