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Mainframe Computer Jobs in Chicago, IL (NOW HIRING)

blueStone

Database Administrator

Barrington, IL

... mainframe Operating Systems Good time/project management skills Good attention to detail Good problem solving skills Education and Experience Bachelors degree in Computer Science Additional ...

Global Channel Management, Inc.

IT Project Manager

Chicago, IL · Hybrid

$101K - $120K/yr

Ability to extensively use computer * Responsible for planning, coordinating, and managing delivery ... mainframe-based Financial Accounting System (FAS), Accounts Payable System (APS), and related ...

Allcon, Inc.

Infrastructure Architect

Chicago, IL · On-site

$68 - $87/hr

Bachelors degree or higher in IT, computer science, or other technical related field 10+ years of ... understanding of Mainframe, AS400, & Tandem Hands-on technical practitioner and individual ...

Collabera

SAS Programmer

Lake Bluff, IL · On-site

... PC and Mainframe applications. Interprets process, data modules, and business requirements into software code. Analyzes, designs, develops, implements and maintains moderate to complex computer ...

Allcon, Inc.

Infrastructure Architect

Chicago, IL · On-site

$68 - $87/hr

Bachelors degree or higher in IT, computer science, or other technical related field • 10+ years ... Mainframe, AS400, & Tandem • Hands-on technical practitioner and individual contributor • ...

AbbVie

AI Business Systems Analyst

North Chicago, IL · On-site

Produces requirements for mainframe reports, time lines, and graphics using advanced functions of a personal computer. Creates reports from existing client databases to satisfy user requests ...

AbbVie

AI Business Systems Analyst

North Chicago, IL · On-site

$65K/yr

... for mainframe reports, time lines, and graphics using advanced functions of a personal computer. Creates reports from existing client databases to satisfy user requests, development of ad-hoc ...

blueStone

IT Security Program Manager

Chicago, IL

... mainframe, mid-range, distributed system and network environments. Assists internal audit ... Serves as the enterprise focal point for computer security incident response planning, execution ...

Ensono

Hardware Tech

Downers Grove, IL

Knowledgeable with Mainframe installations and terminology. Log, analyze and promptly take steps to ... Must have proficient working knowledge of raised floor management, computer, and network ...

United Airlines, Inc.

Manager - Quality

Chicago, IL · On-site

Bachelor's degree in Computer Science, Information technology or similar * 4+ years of Quality ... Understanding of cloud, distributed, microservice, mainframe and desk top based technology (AWS ...

Federal Signal

Product Specialist - Systems

Crete, IL

$60K - $86K/yr

Strong computer skills, including MS Office Products and mainframe applications. Wage Range : $60,841 - $86,916 Benefits of Employment In addition to excellent career growth opportunities, Federal ...

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Mainframe Computer information

See Chicago, IL salary details

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How much do mainframe computer jobs pay per hour?

As of Aug 20, 2026, the average hourly pay for mainframe computer in Chicago, IL is $54.99, according to ZipRecruiter salary data. Most workers in this role earn between $48.56 and $62.40 per hour, depending on experience, location, and employer.

What is a mainframe computer?

A Mainframe Computer job typically involves working with large-scale, high-performance computing systems used by enterprises for critical applications such as banking, finance, and healthcare. Responsibilities may include system administration, application development, performance monitoring, and troubleshooting. Professionals in this field often work with mainframe operating systems like z/OS and programming languages such as COBOL, JCL, and REXX. This role requires strong analytical skills and knowledge of legacy systems, as mainframes continue to be integral to many industries.

What are the key skills and qualifications needed to thrive in the mainframe computer position?

To thrive as a Mainframe Computer Operator or Specialist, you need a solid understanding of mainframe hardware, operating systems (such as IBM z/OS), and data center best practices, alongside a degree in computer science or related experience. Familiarity with job scheduling tools (like JCL), monitoring utilities, and expertise in mainframe programming languages (such as COBOL) are commonly required, and certifications such as IBM Certified System Programmer are advantageous. Attention to detail, strong troubleshooting abilities, and excellent communication skills are essential for coordinating with IT teams and resolving system issues. These competencies ensure the reliability, security, and efficiency of mission-critical mainframe systems in large organizations.

What are some common challenges faced by mainframe professionals in day-to-day operations?

Mainframe professionals often face challenges such as managing complex batch job schedules, troubleshooting unexpected system outages, and ensuring data security while dealing with legacy applications. The work requires careful monitoring for performance bottlenecks and rapid response to issues, often during off-hours or on-call rotations. Collaboration with programming, network, and system administration teams is frequent, as mainframe environments are integral to business-critical services. Successfully handling these challenges helps maintain uptime and reliability for the organization’s core operations.

Is a mainframe computer a good career option?

A career as a mainframe computer professional involves maintaining and supporting large-scale enterprise systems, which are critical for industries like finance and government. It requires skills in mainframe operating systems, programming languages such as COBOL, and certifications like IBM Certified Systems Expert. The role offers stability and demand due to the continued reliance on mainframes for mission-critical applications.

Is a mainframe computer still in demand?

Mainframe computers remain in demand for large-scale enterprise applications, especially in banking, finance, and government sectors that require high reliability, security, and processing power. Skilled mainframe professionals with knowledge of COBOL, JCL, and mainframe environments are sought after to maintain and upgrade these systems.

What are jobs in mainframe computer?

Jobs in mainframe computers include roles such as mainframe programmers, system analysts, and operators who maintain, develop, and troubleshoot mainframe systems. These positions often require knowledge of languages like COBOL or PL/I, familiarity with mainframe operating systems such as z/OS, and certifications in mainframe technology. Mainframe professionals work in environments that demand high reliability and security, often following shift schedules to ensure continuous system operation.

What are popular job titles related to Mainframe Computer jobs in Chicago, IL?

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

What job categories do people searching Mainframe Computer jobs in Chicago, IL look for?

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

Mainframe Computer jobs near you
Infographic showing various Mainframe Computer job openings in Chicago, IL as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, 2% Contract, and 1% Nights. Highlights an 78% Physical, 2% Hybrid, and 20% Remote job distribution, with an average salary of $114,373 per year, or $55 per hour.

Database Administrator

blueStone

Barrington, IL

Contractor

Re-posted 10 days ago

Job description

Job Description

Primary Purpose
The Database Administrator designs, administers and maintains enterprise database systems, including Oracle, SQL Server, DB2, MySQL and/or Progress. Works with development and infrastructure teams to implement new applications, enhancements, and upgrades. Tunes the databases for optimal performance and recommends improvements in the environment.
The Database Administrator will assist developers with tuning of code to ensure successful implementations and provides support for database architecture and systems.  The Database Administrator participates in disaster recovery tests and manages backup processes and monitors growth of systems to proactively prevent issues from occurring.  The Database Administrator will provide database design and support for application and infrastructure projects and acts as a database subject matter expert. 

Qualifications

Qualifications

Skills/Knowledge Required

Intermediate RDBMS skills in one or more of the following: SQL Server, Oracle, Progress, MySQL or DB2

Intermediate skills in UNIX, Windows and/or mainframe Operating Systems

Good time/project management skills

Good attention to detail

Good problem solving skills

Education and Experience

Bachelors degree in Computer Science

Additional Information

If you are interested,  give me a call. Greg Cole, Search Consultant, blueStone, LLC at 847.440.2452 - greg.cole@bluestonestaffing.com

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