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Mainframe Developer Jobs in Naperville, IL (NOW HIRING)

Has mastered the basics of operating as a developer in the IBM mainframe environment; * Experience debugging with tools like XDC, IPCS; * Experience in software development using IBM Assembler/Metal ...

Bank is seeking a z/OS Systems Programmer that has extensive experience in mainframe technologies with an emphasis on installation/upgrading, tuning, and troubleshooting of z/OS and third-party ...

Site Reliability Engineer

Chicago, IL · On-site

$58.75 - $78/hr

Support Mainframe technologies including z/OS, MVS, CICS, MQ, DB2, COBOL, JCL, TSO/ISPF, Easytrieve, IBM Utilities, SORT, FileAid, Xpediter, ChangeMan, AbendAid, and related tools. * Monitor and ...

The Role We are seeking an experienced Mainframe z/VM & Linux Engineer to support IBM Z virtualization environments and Linux on Z platforms. This role is responsible for provisioning, maintaining ...

... program management, DevOps practices • Drive end-to-end transformation of legacy mainframe ... applications and data to cloud platforms • Align modernization initiatives with enterprise ...

Employee Ensono is a leading, large-scale provider of mainframe and infrastructure services serving ... Work closely with Sales Engineering and the customer on solution, value, and pricing scenarios

Showing results 41-60

Mainframe Developer information

See Naperville, IL salary details

$10

$52

$71

How much do mainframe developer jobs pay per hour?

As of Aug 10, 2026, the average hourly pay for mainframe developer in Naperville, IL is $52.92, according to ZipRecruiter salary data. Most workers in this role earn between $46.73 and $60.05 per hour, depending on experience, location, and employer.

Is a mainframe developer hard to learn?

Mainframe developers typically need to learn specialized programming languages like COBOL and understand mainframe environments, which can have a steep learning curve for beginners. However, with prior programming experience and training, acquiring the necessary skills is achievable, and many employers offer on-the-job training or certification programs.

What is the difference between Mainframe Developer vs Mainframe Analyst?

AspectMainframe DeveloperMainframe Analyst
Primary RoleDesigning, coding, and testing mainframe applicationsAnalyzing and maintaining existing mainframe systems
Skills & CertificationsCOBOL, JCL, DB2, certifications like IBM Certified DeveloperCOBOL, JCL, system analysis, troubleshooting skills
Work EnvironmentDevelopment teams, coding in mainframe environmentsSupport teams, system analysis, user support
Industry UsageFinancial services, insurance, government agenciesFinancial institutions, healthcare, government agencies

While Mainframe Developers focus on creating and implementing mainframe applications, Mainframe Analysts primarily analyze, troubleshoot, and maintain existing systems. Both roles require similar technical skills and often work within the same industries, but their core responsibilities differ in development versus support and analysis.

What are some common challenges mainframe developers face when integrating legacy systems with modern applications?

Mainframe Developers often encounter challenges such as ensuring compatibility between legacy systems and newer technologies, managing data migration without disrupting business operations, and maintaining the security of sensitive data. Effective communication with cross-functional teams, such as application developers and infrastructure engineers, is essential to address these challenges. Staying updated on both mainframe and modern programming practices helps ease integration and ensures long-term system reliability.

Is a mainframe developer a good career?

A mainframe developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical operations. The role offers stable employment, competitive salaries, and requires skills in languages like COBOL and tools such as JCL. Demand remains steady in industries like finance and government, making it a viable career choice for those with relevant expertise.

What is a mainframe developer?

Mainframe Developers are specialized software engineers who design, develop, maintain, and troubleshoot applications on mainframe computer systems, such as IBM's z/OS. They typically work with languages like COBOL, JCL, and CICS, and are responsible for ensuring the performance, security, and reliability of mission-critical business applications. Mainframe Developers are commonly employed in industries like banking, insurance, and government, where large-scale, high-volume transaction processing is essential.

Is mainframe developer still in demand?

Mainframe developers are still in demand in industries such as finance, government, and insurance that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand remains steady due to the ongoing need for system maintenance and integration. However, the overall job market is gradually shifting toward modern technologies, so acquiring skills in related areas can enhance job prospects.

What are the key skills and qualifications needed to thrive as a mainframe developer?

To thrive as a Mainframe Developer, you need expertise in programming languages such as COBOL, JCL, and SQL, along with a strong understanding of mainframe operating systems and batch processing concepts. Familiarity with tools like IBM z/OS, DB2, CICS, and version control systems is typically required, and certifications from IBM or related organizations can be beneficial. Strong problem-solving abilities, attention to detail, and effective communication skills help Mainframe Developers excel in troubleshooting and collaborating with cross-functional teams. These skills are crucial for maintaining, optimizing, and modernizing legacy systems that are vital to many large organizations’ operations.
What are the most commonly searched types of Mainframe Developer jobs in Naperville, IL? The most popular types of Mainframe Developer jobs in Naperville, IL are:
What are popular job titles related to Mainframe Developer jobs in Naperville, IL? For Mainframe Developer jobs in Naperville, IL, the most frequently searched job titles are:
What job categories do people searching Mainframe Developer jobs in Naperville, IL look for? The top searched job categories for Mainframe Developer jobs in Naperville, IL are:
What cities near Naperville, IL are hiring for Mainframe Developer jobs? Cities near Naperville, IL with the most Mainframe Developer job openings:
Infographic showing various Mainframe Developer job openings in Naperville, IL as of August 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 100% In-person job distribution, with an average salary of $110,073 per year, or $52.9 per hour.

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 6 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 156 rated electronics manufacturers


Job description

Please Note:

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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.
The R&D Software Engineer 4 will perform complex code modification, testing, and debugging tasks, as well as provide high-level analysis related to software design and development. The person in this role is expected to technically lead a small team, advising, mentoring, and coaching more junior developers and partnering with stakeholders such as Product Owners, Solution Architects, etc.

Work Location:

Lisle, IL


What you will be doing in a typical week:

  • Applying your past experience to inform the product roadmap;
  • Experimenting with new technologies that improve our software;
  • Adopt a test-first approach to software development in which, where possible, the test is developed before the code;
  • Participate in design and code reviews with other engineers;
  • Participate in test plan reviews;
  • Mentor Junior team members;
  • Perform unit/module testing of software;
  • Actively support and contribute to end of iteration demos;
  • Responsible for assigned integration, testing, and deployment tasks;
  • Actively foster continuous team improvement in self and team:
  • Contribute to team retrospectives; help to identify and resolve team impediments;
  • Take ownership of problems and continuously strive to become a better problem solver;
  • Write and maintain documentation to describe program development, logic, coding, testing, changes, and corrections.

Qualifications:
At the end of the day, the main things we're searching for are talent and passion. However, experience in one or more of these areas could make you a great addition to our team:

  • At least 8+ years of experience testing modern large-scale software and complex test configurations;
  • Has mastered the basics of operating as a developer in the IBM mainframe environment;
  • Experience debugging with tools like XDC, IPCS;
  • Experience in software development using IBM Assembler/Metal C on the mainframe (zOS or zVSE) platform;
  • Experience in implementing JCL to execute batch processes in zOS or zVSE;
  • Additional experience in one or more of the following programming languages: IBM C, ISPF CLIST, REXX, RESTful APIs and Object-Oriented programming;

Business Travel and Physical Demands

  • No (or minimal) business travel is expected for this position.
  • Office environment. No special physical demands are required.

Education
Bachelor's degree in Engineering or higher or global equivalent in a software-related field.

Work Experience
8+ years of experience in software development or a related field.

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

Additional Job Description:

Compensation and Benefits

The annual base salary range for this position is$108,00 - $172,800

This position is also eligible for a discretionary annual bonus in accordance with relevant plan documents, and equity in accordance with equity plan documents and equity 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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