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Mainframe Computer Jobs in Chicago, IL (NOW HIRING)

Northern Trust

Mainframe Senior Developer

Chicago, IL · On-site

$50.50 - $65/hr

They are seeking a Mainframe Senior Developer responsible for installing, maintaining, and ... Preferred : • Bachelor's Degree in Computer Science, Information Management, or related field ...

Broadcom

Mainframe Software Development Engineer

Lisle, IL · On-site

$48.25 - $62.25/hr

... mainframe software development. The role involves planning, designing, developing, and testing ... Required : • Bachelor's degree in engineering/computer science and 5+ years of related experience ...

Broadcom

Mainframe Software Development Engineer

Lisle, IL · On-site

$48.25 - $62.25/hr

Required : • Bachelor's degree in Engineering/Computer Science and 5+ years of related experience ... Proven Mainframe knowledge and skills • Proficiency in IBM Assembler language and Metal C ...

Broadcom

Mainframe Software Development Engineer

Lisle, IL · On-site

$91K - $146K/yr

This position is concentrated on the mainframe platform, with development in Assembler language ... Bachelor's degree in Engineering/Computer Science and 5+ years of related experience or Masters ...

Northern Trust

Mainframe Senior Developer

Chicago, IL

$99.60K - $169.20K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing ... Bachelor's Degree in Computer Science, Information Management, or related field preferred Nice to ...

Northern Trust

Mainframe Senior Developer

Chicago, IL · On-site

$99.60K - $169.20K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing ... Bachelor's Degree in Computer Science, Information Management, or related field preferred Nice to ...

Northern Trust

Mainframe Senior Developer

Chicago, IL

$99.60K - $169.20K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing ... Bachelor's Degree in Computer Science, Information Management, or related field preferred Nice to ...

Staffingine LLC

Tandem Developer

Rolling Meadows, IL · On-site

$49.25 - $63.25/hr

Bachelor's degree in computer science information technology or a related field * Minimum 5 years ... CICS,JCL,Mainframe Enterprise Cobol,Mainframe DB2,Z/OS,CICS Admin,Mainframe - COBOL/JCL/CICS ...

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Mainframe Computer information

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$10

$54

$74

How much do mainframe computer jobs pay per hour?

As of May 30, 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 job?

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, and why are they important?

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.
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Mainframe Computer jobs near you
Infographic showing various Mainframe Computer job openings in Chicago, IL as of May 2026, with employment types broken down into 4% Internship, 83% Full Time, 4% Temporary, 5% Contract, and 4% Nights. Highlights an 94% In-person, and 6% Remote job distribution, with an average salary of $114,373 per year, or $55 per hour.
Weekend Computer Operator

Weekend Computer Operator

Sonoma Consulting Inc.

Glenview, IL

Full-time

Posted 3 days ago

Job description

Company Description

Halo Group is a premier provider of IT talent. We place technology experts within
the teams of the world's leading companies to help them build innovative
businesses that keep them one step closer to their customers and one step
ahead of the competition. We offer a meaningful work environment for
employees, attractive and interesting engagements for consultants, and cutting-edge
digital innovation for our customers.
We delight in helping our customers execute their digital vision. Big projects or
small, Halo Group knows that by combining the highest quality talent with our
unwavering support, we will become an invaluable extension of the team. Halo
Group's experienced consultants in Detroit, Atlanta and Dallas specialize in all
areas of product/project governance, UX/UI, multi-platform applications, quality
assurance/testing, cloud computing, and data analytics.

Job Description

Job Title: Weekend Computer Operator

Location: Glenview, IL

Duration: Fulltime Permanent (Direct Hire)

The successful candidates will handle all aspects of Enterprise Command Center environment, including operating system, support systems, job flow Change, problem notification/escalation, media management, printer management, computer room physical security, and hardware/environmental monitoring. Help Desk experience and server knowledge is a strong plus.
This position is for the weekend shift working Friday thru Sunday 5:30 p.m. to 6:00 a.m.

Job Description: Candidates will have a minimum of five years Mainframe Computer Operations experience to include MVS, JES2,(in a sysplex environment), exposure to WAN, LAN interfaces, and PC software literacy. Candidates must be able to navigate through production schedules. Proficiency in BMC software (Control OMR and Control EM) is desired. Knowledge and use of WUG monitoring software is a strong plus. Working knowledge and understanding of Windows Servers, AS400 and AIX platforms are also a strong plus. Network understanding and troubleshooting is also a strong plus.

The ideal candidate must have the ability to work well under stressful, problem situations and make thoughtful decisions. Must also have the ability to identify and communicate important information to our Information Services support teams. Dependability and the ability to work in a group setting are a must.

Qualifications

Title : Weekend Computer Operator / Computer Operator / Help Desk Technician / Help desk Specialist / PC Technician 

Skills: BMC software (Control OMR and Control EM) ,  WAN, LAN interfaces.

Additional Information

Title : Weekend Computer Operator / Computer Operator / Help Desk Technician / Help desk Specialist / PC Technician 

Skills: BMC software (Control OMR and Control EM) ,  WAN, LAN interfaces.


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About Sonoma Consult

Sourced by ZipRecruiter

Sonoma Consult is a California based C corporation helping companies bring products to the patient by working closely with the engineering teams and the clinicians. Our goal, no matter what stage of product development, is to create and execute a plan of action to move the product through the appropriate clinical and regulatory steps. Sonoma Consult works cohesively with the engineers and physicians to translate technologies to the clinic. Our goal is to help you get the very best product to the clinic and to the market. This includes planning, execution and ensuring critical data is delivered in the right format to ensure the feedback loop to the design team ultimately delivers the most advanced technology to the patient.

Industry

Business management consulting

Company size

1 - 10 Employees

Headquarters location

Sonoma, CA, US

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