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Mainframe System Programmer Jobs in Illinois (NOW HIRING)

PB Consulting

IBM Mainframe Systems Engineer

Chicago, IL · On-site

This role requires deep technical expertise across the mainframe technology stack, including system ... Provide engineering support across core IBM Z technologies, including z/OS, z/VM, DB2 for z/OS ...

New

Ensono

Mainframe Security Engineer

Downers Grove, IL · On-site

Employee The primary role of the Mainframe System Security Engineer is to create, modify and maintain security access on internal and external userids and security rules access for mainframe systems.

Purple Drive Technologies

Mainframe Developer

Chicago, IL · On-site

$50.50 - $65/hr

Position: Mainframe Developer Location: Chicago, IL & Richardson, TX Experience: Expert Level ... Deep understanding of batch and online processing systems for enterprise-grade environments.

CYNET SYSTEMS

Mainframe Developer

Riverwoods, IL · On-site

$35 - $40/hr

The Mainframe Developer will be responsible for developing, enhancing, and maintaining mainframe ... The role involves working across COBOL, JCL, DB2, and Unix/Linux environments while ensuring system ...

TEKsystems

Mainframe Engineer

Chicago, IL

$10 - $70/hr

This role is engineering first, focused on architecture, deep technical analysis, system tuning, and modernization readiness. The engineer will play a critical role in proofing the mainframe platform ...

Northern Trust

Mainframe Senior Developer

Chicago, IL · On-site

$99K - $169K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing ... Work on Primitive CICS Systems and re-create them in lower environment. . Work on Assembler and PL ...

Northern Trust

Mainframe Senior Developer

Chicago, IL

$99K - $169K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing ... Work on Primitive CICS Systems and re-create them in lower environment. . Work on Assembler and PL ...

Northern Trust

Mainframe Senior Developer

Chicago, IL

$99K - $169K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing ... Work on Primitive CICS Systems and re-create them in lower environment. . Work on Assembler and PL ...

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All JobsMainframe System Programmer JobsMainframe System Programmer Jobs in Illinois

Mainframe System Programmer information

See Illinois salary details

$9

$56

$75

How much do mainframe system programmer jobs pay per hour?

As of Jun 12, 2026, the average hourly pay for mainframe system 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 are the key skills and qualifications needed to thrive as a Mainframe System Programmer, and why are they important?

To thrive as a Mainframe System Programmer, you need deep knowledge of mainframe operating systems (such as z/OS), programming languages like COBOL or Assembler, and a degree in computer science or a related field. Familiarity with mainframe tools (e.g., IBM ISPF, JCL, SMP/E) and certifications such as IBM Certified System Programmer are typically required. Analytical thinking, problem-solving, and effective communication are crucial soft skills for diagnosing issues and collaborating with IT teams. These skills are vital to ensure the stability, security, and efficiency of critical enterprise computing environments.

What are some common challenges Mainframe System Programmers face when supporting legacy systems?

Mainframe System Programmers often encounter challenges such as integrating modern applications with legacy mainframe environments, ensuring system security while maintaining uptime, and troubleshooting complex issues that span both old and new technologies. They may also face difficulties due to limited documentation or retiring expertise as experienced colleagues leave the workforce. Staying current with evolving mainframe tools and best practices helps address these challenges and keeps systems running smoothly.

Are mainframe jobs in demand?

Mainframe system programmer roles are in steady demand due to the continued reliance of large organizations on mainframe systems for critical operations. These jobs require expertise in COBOL, JCL, and mainframe environments, and professionals with skills in modernization and automation are increasingly sought after. The demand remains stable as many enterprises maintain legacy systems alongside newer technologies.

Is mainframe difficult to learn?

Mainframe system programming can be complex due to its specialized environment, programming languages like COBOL and Assembler, and unique operational procedures. However, with proper training and experience, it is learnable, especially for those with a background in computer science or IT. Consistent practice and understanding of mainframe tools and concepts are essential for proficiency.

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

AspectMainframe System ProgrammerMainframe Application Developer
Required CredentialsCertifications in mainframe systems, such as IBM Certified System ProgrammerProgramming certifications, often in COBOL, Java, or other languages
Work EnvironmentOperate primarily on mainframe hardware, focus on system setup and maintenanceDevelop and modify applications running on mainframes
Employer & Industry UsageUsed by organizations with large-scale legacy systems, banking, insuranceDevelops business applications for mainframe environments in similar industries

While both roles work within mainframe environments, Mainframe System Programmers focus on system setup, maintenance, and optimization, whereas Mainframe Application Developers concentrate on creating and updating applications that run on mainframes. Understanding these differences helps in choosing the right career path or job search focus.

What are mainframe system programmers?

Mainframe system programmers are IT professionals who specialize in installing, configuring, maintaining, and optimizing mainframe computer systems. They are responsible for the underlying software infrastructure, such as operating systems (like IBM z/OS), network configurations, and middleware. Their work ensures that mainframe environments run efficiently, securely, and with minimal downtime, supporting critical applications for large organizations. System programmers also troubleshoot complex issues and implement updates or enhancements as needed.

How much does IBM mainframe pay?

Mainframe system programmers typically earn between $70,000 and $120,000 annually, depending on experience, location, and certifications. Senior roles or those with specialized skills in IBM z/OS or related tools can earn higher salaries, especially in large enterprise environments.

What does a mainframe system programmer do?

A mainframe system programmer is responsible for installing, maintaining, and troubleshooting mainframe operating systems and related software. They configure hardware, optimize system performance, and ensure system security, often using tools like z/OS and JCL. Strong knowledge of system architecture, scripting, and problem-solving skills are essential for this role.
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Mainframe System Programmer jobs near you
Infographic showing various Mainframe System Programmer job openings in Illinois as of June 2026, with employment types broken down into 5% Locum Tenens, 42% As Needed, 19% Full Time, 3% Part Time, 18% Temporary, and 13% Nights. Highlights an 94% Physical, 2% Hybrid, and 4% Remote job distribution, with an average salary of $117,258 per year, or $56.4 per hour.

Mainframe System Administrator (NOMAD) - Senior

Alert IT Solutions

Springfield, IL • Hybrid

$85K - $115K/yr

Other

Posted 11 days ago

Job description

Job Description: Mainframe System Administrator (NOMAD)Position Title

Mainframe System Administrator (NOMAD) – Senior

Location

Hybrid – Springfield, IL
(2 days onsite, 3 days remote; subject to CIO approval)

Duration

Long-term contract (3 years)

Overview

We are seeking a highly experienced Mainframe System Administrator with strong NOMAD expertise to support critical Department of Transportation applications. This role will focus on maintaining, enhancing, and preparing legacy NOMAD systems for future migration to a statewide ERP platform.

The ideal candidate will possess deep technical knowledge of NOMAD environments, strong problem-solving skills, and the ability to operate independently while collaborating with cross-functional teams.

Key Responsibilities

  • Develop in-depth knowledge of NOMAD-based applications, including:

    • Human Resources Information (HRI)
    • Time Keeping System (TKS)
    • Human Resources Datamart (HRD)

  • Analyze, maintain, and enhance application functionality:

    • Perform system enhancements and code modifications
    • Provide ongoing maintenance and production support

  • Troubleshoot and resolve:

    • Application defects and incidents
    • Data and performance issues

  • Work independently on:

    • Development requests
    • Service requests
    • Incident resolution

  • Generate and manage:

    • Reports
    • Data extracts for operational and modernization needs

  • Support ERP migration readiness:

    • Participate in modernization planning discussions
    • Assist in system transition and decommissioning strategies

  • Perform knowledge transfer activities:

    • Document system architecture, dependencies, and processes
    • Train and collaborate with internal IT staff
Required QualificationsEducation
  • Bachelor’s degree in Computer Science, MIS, Mathematics, Accounting, or related field
    OR
  • Equivalent combination of education and relevant experience
Experience

  • Minimum 3+ years of recent experience with:

    • NOMAD applications
    • NOMAD programming
    • NOMAD databases
    • NOMAD online screens and user interfaces
    • Time series arrays and date/time functions
    • NOMAD reporting tools

  • Minimum 2+ years of experience:

    • IBM VM environment

  • Minimum 1+ year of experience:

    • File Transfer Protocol (FTP)
Required Skills

  • Strong knowledge of:

    • Mainframe systems and NOMAD environments
    • Legacy system support and modernization practices

  • Excellent problem-solving and analytical skills

  • Ability to:

    • Work independently with minimal supervision
    • Manage multiple priorities and deliverables

  • Strong communication skills:

    • Written and verbal
    • Stakeholder engagement
Preferred Skills
  • Experience supporting HR and payroll systems
  • Experience in public sector or government environments
  • Exposure to ERP migration or system modernization initiatives
Work Schedule
  • 40 hours per week
  • Standard hours: 8:00 AM – 4:30 PM CST
Additional Requirements
  • Must be authorized to work in the United States
  • Ability to adapt to changing operational needs and priorities

Apply