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Mainframe Systems Programmer Jobs in Illinois (NOW HIRING)

RIT Solutions, Inc.

Java Architect

Naperville, IL · On-site

$63 - $85/hr

... mainframe/java systems • Ability to define client requirements, inputs/outputs of APIs, and utilization of Kafka • Ability to communicate effectively with senior Java developers and lead them in ...

Accenture

Mainframe Specialist

Chicago, IL · On-site

$70K - $196K/yr

Evaluate legacy systems and propose actionable modernization strategies-covering rehosting ... Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ...

US Bank

Sr. Software Engineer (Mainframe - Cobol)

Chicago, IL · On-site

$50.50 - $65/hr

Advanced knowledge of Mainframe programming, troubleshooting, performance tuning, and debugging ... Experience developing unit, system, and functional test plans and supporting quality assurance ...

New

Staffingine LLC

Tandem Developer

Rolling Meadows, IL · On-site

$49.25 - $63.25/hr

Strong experience with Tandem HP NonStop systems and tools * Proficiency in Tandem programming ... CICS,JCL,Mainframe Enterprise Cobol,Mainframe DB2,Z/OS,CICS Admin,Mainframe - COBOL/JCL/CICS ...

Capgemini

Cobol Developer

Chicago, IL · On-site

$90K - $118K/yr

... mainframe systems for Data Lake consumption and support the broader CPS modernization and cloud ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

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 ... engineering team and associated systems. * Responsible for developing and maintaining ...

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 ... Serve as the final technical tier for complex, cross-system environment challenges encountered ...

Capgemini

Cobol Developer

Chicago, IL · On-site

$90K - $118K/yr

... mainframe systems for Data Lake consumption and support the broader CPS modernization and cloud ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

United Airlines

Cobol Developer

Chicago, IL · On-site

$90K - $118K/yr

... mainframe systems for Data Lake consumption and support the broader CPS modernization and cloud ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

Broadcom

R&D Engineer Software 3

Lisle, IL · On-site

... or other mainframe products and systems is a plus. * Experience with online z/OS debugger is ... Bachelor's degree in Computer Science, Electrical Engineering or equivalent in a related field.

Capgemini

Mainframe Modernization Lead

Chicago, IL · On-site

$98K - $233K/yr

Ability to analyze complex systems and develop a strategic vision for application modernization ... Bachelor's degree in Business, Computer Engineering, or related field (advanced degree preferred ...

Broadcom Inc.

R&D Engineer Software 3

Lisle, IL · On-site

## R&D Engineer Software 3Applylocations: USA-IL Lisle Warrenville Roadtime type: Full timeposted on ... or other mainframe products and systems is a plus.* Experience with online z/OS debugger is ...

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How much do mainframe systems programmer jobs pay per hour?

As of Sep 10, 2026, the average hourly pay for mainframe systems programmer in Illinois is $56.37, according to ZipRecruiter salary data. Most workers in this role earn between $51.25 and $65.24 per hour, depending on experience, location, and employer.

What is a mainframe systems programmer?

Mainframe Systems Programmers are IT professionals responsible for installing, configuring, maintaining, and troubleshooting mainframe computer systems and software. They ensure that the mainframe environment runs efficiently, securely, and reliably, supporting critical business operations. Their duties often include system upgrades, performance tuning, applying patches, and collaborating with other IT teams to resolve complex technical issues. Mainframe Systems Programmers play a key role in organizations that rely on large-scale transaction processing, such as banks, insurance companies, and government agencies.

What does a mainframe systems programmer do?

As a mainframe systems programmer, your responsibilities are to maintain an organization’s server computer, also called a mainframe computer. Your duties include handling server configuration, as well as installing, upgrading, and customizing the operating system and other software necessary for running the server and its databases. You also work with other IT professionals with the planning of security measures to protect the mainframe and routinely perform tests for bugs and other security issues.

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

To thrive as a Mainframe Systems Programmer, you need expertise in system programming, operating systems like z/OS, and strong problem-solving abilities, usually supported by a degree in computer science or related field. Familiarity with mainframe tools such as IBM z/OS utilities, JCL, REXX, and experience with system monitoring and performance tuning software are commonly required. Attention to detail, analytical thinking, and effective communication skills help ensure smooth collaboration and troubleshooting. These skills are essential to maintain, optimize, and secure critical enterprise computing environments that rely on mainframe infrastructure.

What are some common challenges mainframe systems programmers face when maintaining legacy systems?

Mainframe Systems Programmers often encounter challenges related to supporting and upgrading legacy systems that may have limited documentation or use outdated programming languages. Navigating compatibility issues with newer hardware or software can require creative problem-solving and deep technical expertise. Additionally, ensuring system security and reliability while performing upgrades or patches involves careful planning and collaboration with other IT and business teams. Staying current with evolving mainframe technologies and practices is essential for long-term success in the role.

What is the difference between Mainframe Systems Programmer vs Mainframe Application Developer?

AspectMainframe Systems ProgrammerMainframe Application Developer
CredentialsTypically requires certifications like IBM Certified Systems ProgrammerOften requires programming certifications or specific language expertise
Work EnvironmentWorks primarily on system-level tasks, OS, and hardware interactionsFocuses on developing and maintaining applications on mainframe platforms
Employer & Industry UsageCommon in large enterprises with mainframe infrastructureAlso in large organizations, but more application-focused
Job FocusSystem configuration, performance tuning, and maintenanceApplication coding, testing, and deployment

The Mainframe Systems Programmer primarily manages system-level tasks, ensuring the mainframe environment runs efficiently, while the Mainframe Application Developer focuses on creating and maintaining applications. Both roles are essential in mainframe environments but differ in their technical focus and responsibilities.

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Mainframe Systems Programmer jobs near you
Infographic showing various Mainframe Systems Programmer job openings in Illinois as of August 2026, with employment types broken down into 1% As Needed, 88% Full Time, 7% Part Time, 3% Contract, and 1% Nights. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $117,258 per year, or $56.4 per hour.

Mainframe Production Support Developer

Chicago, IL • On-site

Spruce Infotech
IT Services • 1 - 10 employees
Learn more about Spruce Infotechexternal

$50.50 - $65/hr

Other

Re-posted 23 days ago

Job description

Job Description
We are looking for a Mainframe Production Support Developer with strong experience in Mainframe technologies and application support. The ideal candidate will be responsible for monitoring production environments, troubleshooting issues, and ensuring the stability of critical banking applications.
Required Skills
  • Mainframe
  • CICS
  • DB2 and/or Oracle Database
  • Unix/Linux
  • IBM DataStage
  • COBOL
  • JCL
  • Production Support

Key Responsibilities
  • Monitor production jobs, batch processes, and system alerts on a daily basis.
  • Investigate production incidents and perform root cause analysis.
  • Debug application issues and resolve minor defects and production problems.
  • Work proactively to stabilize production environments and improve application reliability.
  • Participate in SWAT calls and provide timely resolution for critical production issues.
  • Support multiple applications across the production landscape.
  • Coordinate with development, infrastructure, and business teams to resolve incidents.
  • Perform impact analysis and document issue resolutions.
  • Ensure compliance with SLA requirements and operational procedures.
  • Participate in weekend on-call support rotations and provide after-hours support when required.

Qualifications
  • 5+ years of experience in Mainframe Development and Production Support.
  • Strong troubleshooting and debugging skills.
  • Experience working with DB2/Oracle databases and Unix environments.
  • Hands-on experience with DataStage.
  • Excellent communication and problem-solving abilities.
  • Banking or Financial Services experience is a plus.

Apply