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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

Northern Trust, a Fortune 500 financial institution, is seeking a Mainframe Senior Developer to ... Computer Science, Information Management, or related field Preferred : • Experience in Control-M ...

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

$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 ...

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 · On-site

$99K - $169K/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

$99K - $169K/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

$99K - $169K/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

See Chicago, IL salary details

$10

$54

$74

How much do mainframe computer jobs pay per hour?

As of Jun 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.

How much do mainframe programmers make?

Mainframe programmers typically earn between $70,000 and $120,000 annually, depending on experience, location, and certifications. Senior roles or those with specialized skills in languages like COBOL or tools such as JCL can command higher salaries.

Is mainframe still in demand?

Mainframe computers remain in demand in industries such as banking, finance, and government, where they handle large-scale transaction processing and data management. Skilled mainframe professionals with knowledge of COBOL, JCL, and mainframe security are sought after to maintain and upgrade legacy systems. The demand persists due to the reliability, security, and scalability of mainframe environments.

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 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.

Is mainframe a good career option?

Mainframe computing is a stable and well-paying career path, especially for those skilled in COBOL, JCL, and mainframe operating systems like z/OS. It offers opportunities in industries such as finance, government, and healthcare, with a demand for professionals who can maintain and modernize legacy systems. Certifications and continuous learning in mainframe tools can enhance job prospects and career growth.

Can mainframe be replaced by AI?

Mainframe computers are specialized systems used for large-scale processing and data management, and while AI can automate certain tasks and improve efficiency, it does not replace the core functions of mainframes. Mainframes require specific skills in systems programming, maintenance, and security, which are not fully replaced by AI technologies. Instead, AI can complement mainframe operations by enhancing data analysis and automation processes.

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.

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 June 2026, with employment types broken down into 94% Full Time, 2% Part Time, 2% Contract, and 2% Nights. Highlights an 85% Physical, 5% Hybrid, and 10% Remote job distribution, with an average salary of $114,373 per year, or $55 per hour.
Weekend Computer Operator

Weekend Computer Operator

Sonoma Consulting

Glenview, IL • On-site

Other

This job post has expired today. Applications are no longer accepted.

Job description

Weekend Computer Operator

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.

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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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