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Mainframe Jobs in Naperville, IL (NOW HIRING)

Broadcom

Senior Mainframe DevOps Architect

Lisle, IL · On-site

$127K - $173K/yr

About the Role We are seeking a Senior Mainframe DevOps Architect to lead solution design and own end-to-end architecture for enterprise customers-translating complex business requirements into ...

Huntington

RACF Mainframe Security Engineer

Chicago, IL · On-site +1

$70K - $140K/yr

The RACF Mainframe Security Engineer is accountable for delivery and implementation of IAM technologies across the bank. Duties & Responsibilities: * Deliver business value by delivering and ...

Huntington

RACF Mainframe Security Engineer

Chicago, IL · On-site +1

$70K - $140K/yr

The RACF Mainframe Security Engineer is accountable for delivery and implementation of IAM technologies across the bank. Duties & Responsibilities: * Deliver business value by delivering and ...

DSNSearch

CICS/MQ Systems Programmer

Chicago, IL · Remote

$56.75 - $72/hr

CICS /MQ MAINFRAME SYSTEMS PROGRAMMER CICS ~~ MQ ~~ Z/OS MAINFRAME SYSTEMS ~~ SMP/E ~~ JES 2 ~~ CICSPLEX ~~ INFRASTRUCTURE REMOTE !!~~ REMOTE!! ~~~~FULL TIME WITH BENEFITS/ANNUAL BONUS OPPORTUNITY~

Kyndryl

Mainframe Logical Security Engineer

Chicago, IL · On-site

The Role We are seeking a skilled Mainframe Logical Security Engineer to design, implement, and manage security controls across IBM z/OS environments. The role ensures the confidentiality, integrity ...

Broadcom

Support Engineer - Mainframe

Lisle, IL · On-site

This position is responsible for providing mainframe technical support for the Endevor/Zowe products. This support includes handling complexquestions/problemsfor product suites to ensure our ...

Virtusa Corporation

Architect

Chicago, IL · On-site

Lead Mainframe Architect DevOps Modernization Role Description Seeking an experienced Lead Mainframe Architect with strong expertise in IBM Z DevOps and enterprise modernization. The role focuses on ...

Broadcom

R&D SW Engineer

Lisle, IL

About the Role Broadcom's Mainframe Software Division (MSD) is the industry leader in mainframe operations software, serving the data center monitoring needs of Fortune 500 financial institutions ...

Broadcom

R&D Engineer Software 3

Lisle, IL · On-site

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 ...

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All JobsMainframe JobsMainframe Jobs in Naperville, IL

Mainframe information

See Naperville, IL salary details

$10

$53

$72

How much do mainframe jobs pay per hour?

As of Aug 21, 2026, the average hourly pay for mainframe in Naperville, IL is $53.33, according to ZipRecruiter salary data. Most workers in this role earn between $47.07 and $60.53 per hour, depending on experience, location, and employer.

What is a mainframe?

Mainframes are powerful computers used mainly by large organizations for critical applications, bulk data processing, large-scale transaction processing, and enterprise resource planning. They are known for their reliability, scalability, and security, making them essential for industries like banking, healthcare, and government. Mainframes can handle thousands of users and transactions simultaneously, supporting the core operations of many businesses.

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

To excel as a Mainframe Developer, a strong background in COBOL, JCL, mainframe operating systems (like z/OS), and database management is essential, often supported by a degree in computer science or a related field. Familiarity with tools such as IBM DB2, CICS, VSAM, and mainframe version control systems is typically required, and certifications like IBM Certified System Programmer can be advantageous. Analytical thinking, problem-solving abilities, and effective communication are important soft skills for identifying issues and collaborating with cross-functional teams. These skills ensure reliable maintenance, development, and modernization of mission-critical legacy systems that support large-scale business operations.

What are some typical challenges faced by mainframe professionals when integrating legacy systems with modern technologies?

Mainframe professionals often encounter challenges when integrating legacy systems with newer technologies, such as ensuring data compatibility, managing security protocols, and minimizing downtime during migration. These tasks require a deep understanding of both the existing mainframe architecture and the modern platforms being introduced. Collaboration with cross-functional teams—including application developers, security specialists, and project managers—is essential to ensure seamless integration and to address potential issues proactively. Staying updated on the latest integration tools and best practices also helps in overcoming these challenges efficiently.

What is the difference between Mainframe vs Mainframe Developer?

AspectMainframeMainframe Developer
Primary RoleMaintains and manages mainframe hardware and systemsDesigns, develops, and tests mainframe applications
Skills & CertificationsKnowledge of mainframe hardware, OS, and basic scriptingProficiency in COBOL, JCL, and mainframe programming languages
Work EnvironmentData centers, enterprise IT departmentsDevelopment teams within mainframe environments
Industry UsageUsed by organizations with legacy systemsDevelops and maintains those legacy systems

While Mainframe professionals focus on maintaining the hardware and system infrastructure, Mainframe Developers specialize in creating and updating mainframe applications. Both roles require knowledge of mainframe environments, but their responsibilities differ significantly within the same industry.

Is mainframe a good career option?

Mainframe careers involve working with large-scale computer systems used by many organizations for critical applications. The role typically requires knowledge of programming languages like COBOL, skills in system maintenance, and certifications such as IBM Certified System Programmer. It offers stable employment opportunities and competitive salaries due to the specialized skill set involved.
More about Mainframe jobs

What are the most commonly searched types of Mainframe jobs in Naperville, IL?

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For Mainframe jobs in Naperville, IL, the most frequently searched job titles are:

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The top searched job categories for Mainframe jobs in Naperville, IL are:

What cities near Naperville, IL are hiring for Mainframe jobs?

Cities near Naperville, IL with the most Mainframe job openings:

Mainframe jobs near you
Infographic showing various Mainframe job openings in Naperville, IL as of August 2026, with employment types broken down into 58% Full Time, and 42% Contract. Highlights an 92% In-person, and 8% Remote job distribution, with an average salary of $110,927 per year, or $53.3 per hour.

Senior Mainframe Programmer

Sonoma Consulting Inc.

Glenview, IL

Full-time

Re-posted 29 days ago

Job description

Company Description

Sonoma Consulting is one of the fastest growing Global IT Consulting and Executive Search providers with offices in Naperville IL; Chicago IL; Tyson's Corner VA and Hyderabad India. 

Our clients range from start-ups to Fortune 500 companies throughout the world. We look to our large recruiting team to continue to build upon the high standards we have set and ways to continually improve our recruiting process around the speed and quality of the resources we deliver. The Sonoma team prides itself on best model for delivery of IT Resources in a 24/7 model, our high level of professionalism and integrity which enables us to create long-term, meaningful relationships with our clients. 

Job Description

Responsibilities:
    The Application programmer will be responsible for working with business analysts and the team members to develop new financial applications/enhancements.  This includes development, testing, code documentation, and production installation.
    The candidate will perform maintenance and simple modification of the existing systems.
    Rotating on-call support responsibilities for the existing Finance applications.
     Work on troubleshooting problems as well as recommend / implement effective solution.

Qualifications

Required Qualifications:
    The candidate must have the minimum of 3-5 years programming experience with Mainframe/COBOL.
    Experience working on systems with DB2 / SQL.
    MVS and JCL.
    TSO / ISPF.
    Familiarity with INSYNC, Xpeditor, CICS, SDSF, and  SCLM
     Strong attention to details and good troubleshooting skills.
    Must be able to work independently.

Additional Information

Sonoma Consulting is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

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About Sonoma Consult

Sourced by ZipRecruiter

Sonoma Consult is a California based C corporation helping companies bring products to the patient by working closely with the engineering teams and the clinicians. Our goal, no matter what stage of product development, is to create and execute a plan of action to move the product through the appropriate clinical and regulatory steps. Sonoma Consult works cohesively with the engineers and physicians to translate technologies to the clinic. Our goal is to help you get the very best product to the clinic and to the market. This includes planning, execution and ensuring critical data is delivered in the right format to ensure the feedback loop to the design team ultimately delivers the most advanced technology to the patient.

Industry

Business management consulting

Company size

1 - 10 Employees

Headquarters location

Sonoma, CA, US

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