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Mainframe System Programmer Jobs in Illinois (NOW HIRING)

vaaridatech

Mainframe Developer -W2

Chicago, IL

$50.50 - $65/hr

Role - Mainframe Developer Location - Riverwoods, IL (onsite) Job Type- W2 Contract Below * Develop ... Participate in system integration, testing, and deployment activities. * Create and maintain ...

Barrow Wise Consulting

Mainframe Developer

Springfield, IL

$48.50 - $62.50/hr

The Mainframe Developer will support Barrow Wise's State of Illinois project and perform the ... Demonstrate strong expertise in Mainframe IMS (Information Management Systems) and MVS (Multiple ...

Accenture

Mainframe Specialist

Chicago, IL

$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 ...

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 ...

krg technology inc

Mainframe SDM Delivery

Chicago, IL · On-site

Knowledge in at least two additional areas of technical disciplines is a strong plus: mainframe security, system programming, parallel sysplex, network, storage, High Availability, Performance and ...

VIVA USA INC

Mainframe Security Specialist

Springfield, IL · On-site

$48.50 - $62.50/hr

Mainframe Security Skills: Proficiency in mainframe security (e.g., RACF, Data security, and ... for payroll system development and maintenance. VIVA is an equal opportunity employer. All ...

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 ...

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How much do mainframe system programmer jobs pay per hour?

As of Jul 13, 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.

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.
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What job categories do people searching Mainframe System Programmer jobs in Illinois look for? The top searched job categories for Mainframe System Programmer jobs in Illinois are:
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Mainframe System Programmer jobs near you
Infographic showing various Mainframe System Programmer job openings in Illinois as of July 2026, with employment types broken down into 16% Locum Tenens, 74% Full Time, 2% Part Time, 6% Contract, and 2% Summer. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $117,258 per year, or $56.4 per hour.

Mainframe Developer -W2

vaaridatech

Chicago, IL

$50.50 - $65/hr

Other

Posted 19 days ago

Job description

Role - Mainframe Developer

Location - Riverwoods, IL (onsite)

Job Type- W2 Contract

Job description Below

  • Develop, test, and maintain mainframe applications using COBOL and related technologies.
  • Write, modify, and execute JCL (Job Control Language) jobs.
  • Design and optimize DB2 database queries and programs.
  • Develop and support online applications using CICS.
  • Analyze business requirements and translate them into technical solutions.
  • Perform code reviews, debugging, and performance tuning.
  • Troubleshoot production issues and provide timely resolutions.
  • Participate in system integration, testing, and deployment activities.
  • Create and maintain technical documentation.
  • Collaborate with business analysts, testers, and cross-functional teams.
  • Support batch processing and monitor scheduled jobs.

Regards

Chris Thakur ( Team Lead)
Vaarida Technologies

📧 Email: Chris.thakur@vaaridatech.com
📍 LinkedIn - https://www.linkedin.com/in/chandan-singh16 

🌐 Website: Vaaridatech.com