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Mainframe Support Jobs in Illinois (NOW HIRING)

CYNET SYSTEMS

DB2 Mainframe Developer

Bloomington, IL · On-site

$45 - $50/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Design, develop, and support Health Applications using Mainframe technologies. * Coordinate ... activity between Product owners and Business Units to drive open action items to closure. Nice to ...

Infosys

Senior Mainframe Architect

Chicago, IL · On-site

$112K - $146K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... and support phases while promoting reusable frameworks and artifacts • Provide specialized ... Required Skill and Experience • Experience working as a Mainframes Architect on large scale ...

Sonsoft Inc

Mainframe PL/1 Consultant

Springfield, IL · On-site

... Support methods At least 3 years of experience in Project life cycle activities on development and ... At least 4 years of experience with Mainframe techonologies Additional Information ** U.S. citizens ...

United Airlines

Mainframe Developer

Chicago, IL

$90K - $96K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Design/Develop/Support Health Applications using Mainframe technologies * Should have experience of both development and production support * Hands on SAS, REXX, JCL, Sort * Debug using IDB IDZ

Capgemini

Mainframe Developer

Chicago, IL · On-site

$90K - $96K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Design/Develop/Support Health Applications using Mainframe technologies * Should have experience of both development and production support * Hands on SAS, REXX, JCL, Sort * Debug using IDB IDZ

Sonsoft Inc

Mainframe PL/1 Consultant

Springfield, IL · On-site

... Support methods At least 3 years of experience in Project life cycle activities on development and ... At least 4 years of experience with Mainframe techonologies Additional Information ** U.S. citizens ...

Broadcom

Support Engineer - Mainframe

Lisle, IL · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

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 ...

Huntington

Site Reliability Engineer

Chicago, IL · On-site

$57K - $113K/yr

  • Medical

  • Life

  • Retirement

  • PTO

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 ...

Huntington

Site Reliability Engineer

Chicago, IL

$58.75 - $78/hr

  • Medical

  • Life

  • Retirement

  • PTO

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 ...

Ensono

Mainframe Security Engineer

Downers Grove, IL

All three security products, ACF2, Top Secret and RACF are utilized for supporting mainframe system access. In addition, they will review security policies, procedures, standards, baselines and may ...

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All JobsMainframe Support JobsMainframe Support Jobs in Illinois

Mainframe Support information

See Illinois salary details

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How much do mainframe support jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for mainframe support in Illinois is $51.72, according to ZipRecruiter salary data. Most workers in this role earn between $45.67 and $58.70 per hour, depending on experience, location, and employer.

What is a mainframe support?

A Mainframe Support job involves maintaining, troubleshooting, and optimizing mainframe systems to ensure smooth operations. Responsibilities typically include monitoring system performance, resolving technical issues, applying software updates, and ensuring data security. Mainframe Support professionals work with legacy systems, batch processing, and various programming languages like COBOL or JCL. Their role is critical in industries like banking, healthcare, and government, where mainframes handle large-scale transactions and data processing.

What are the typical daily responsibilities of a mainframe support?

Mainframe Support professionals typically monitor system performance, respond to incidents or service requests, and perform routine maintenance to ensure mainframe systems run smoothly. Their day may include troubleshooting job failures, updating software or system configurations, and working with application teams to resolve integration or data transfer issues. They often participate in on-call rotations and collaborate closely with other IT teams, such as network or security specialists. These responsibilities are essential to minimize downtime and maintain uninterrupted business operations.

What are the key skills and qualifications needed to thrive in mainframe support, and why are they important?

To thrive as a Mainframe Support professional, you need a solid understanding of mainframe operating systems (such as z/OS), basic programming skills, and troubleshooting abilities, typically supported by a degree in computer science or equivalent experience. Proficiency with tools like IBM ISPF, SDSF, JCL, and familiarity with monitoring and batch processing tools, as well as certifications like IBM Certified System Administrator, are often expected. Strong analytical thinking, communication, and teamwork skills are crucial for effectively addressing technical issues and collaborating with cross-functional teams. These abilities ensure prompt issue resolution and maintain the stability and reliability of critical business systems.

Is mainframe support still in demand?

Mainframe support professionals are still in demand due to the continued reliance of large organizations on mainframe systems for critical operations. Skills in COBOL, JCL, and mainframe troubleshooting remain valuable, especially in finance, government, and insurance sectors where legacy systems are prevalent.

What are the most commonly searched types of Mainframe Support jobs in Illinois?

The most popular types of Mainframe Support jobs in Illinois are:

What are popular job titles related to Mainframe Support jobs in Illinois?

For Mainframe Support jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Mainframe Support jobs in Illinois look for?

The top searched job categories for Mainframe Support jobs in Illinois are:

What cities in Illinois are hiring for Mainframe Support jobs?

Cities in Illinois with the most Mainframe Support job openings:

Mainframe Support jobs near you
Infographic showing various Mainframe Support job openings in Illinois as of August 2026, with employment types broken down into 1% As Needed, 77% Full Time, 18% Part Time, and 4% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $107,587 per year, or $51.7 per hour.

Project Manager | Database Administration | DB2 on Mainframe

Spruce Infotech

Chicago, IL • On-site

$50.50 - $65/hr

Full-time

Posted 7 days ago

Job description

Work Location & Reporting Address Chicago, IL 60604
Vendor Rate XXX/hr.
Contract duration 12
Target Start Date 06 Aug 2026
Job Details:
Develop and maintain mainframe applications using COBOL to support business processes.
Design, write, and optimize JCL jobs for batch processing and scheduling.
Work with DB2 databases for data storage, retrieval, query optimization, and performance tuning.
Develop and support CICS online programs for Realtime transaction processing.
Handle VSAM files for data storage, access, and file management operations.
Analyze business requirements and provide techno functional solutions in mainframe environment
Skills-:
Mainframe, JCL, COBOL, DB2, VSAM, CICS, Production Support, Fund Accounting/ Security Lending Domain, ITSM processes.
Note: For this requirement we are fine for visa dependent candidates.
Minimum years of experience
>10 years
Certifications Needed :No
Top 3 responsibilities you would expect the Subcon to shoulder and execute
Mainframe
JCL
COBOL
Interview Process (Is face to face required?) No
Project Code: Scalable Test automation framework enhan

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