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Ibm Mainframe Computer Operator Jobs in Chicago, IL

Broadcom

R&D Software Engineer

Lisle, IL

Has mastered the basics of operating as a developer in the IBM mainframe environment; * Experience debugging with tools like XDC, IPCS; * Experience in software development using IBM Assembler/Metal ...

Broadcom Corporation

R&D Software Engineer

Lisle, IL

$10K - $172K/mo

Has mastered the basics of operating as a developer in the IBM mainframe environment; * Experience debugging with tools like XDC, IPCS; * Experience in software development using IBM Assembler/Metal ...

360 IT Professionals

Java/J2EE Architect

Chicago, IL · On-site

$65 - $87.50/hr

... and virtual operating systems, and between mainframe application systems and various IBM and ... in computer science or directly related fields, supplemented by five years of professional ...

US Bank

z/OS Systems Engineer

Chicago, IL

... Mainframe monitoring tools as such Mainview and RMF -Complex z/OS Sysplex environments -Security managers such as RACF -IBM GDPS Subject matter expert in: -z/OS installation and upgrade processes ...

Capgemini

Managing Project Manager

Chicago, IL · On-site

$88K - $207K/yr

About the job you're considering Capgemini is seeking Senior Legacy Modernization (Mainframe ... Bachelor's degree in Business, Computer Engineering, or related field (advanced degree preferred ...

United Airlines

Managing Project Manager

Chicago, IL

$88K - $207K/yr

About the job you're considering Capgemini is seeking Senior Legacy Modernization (Mainframe ... Bachelor's degree in Business, Computer Engineering, or related field (advanced degree preferred ...

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 ...

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How much do ibm mainframe computer operator jobs pay per hour?

As of Jun 13, 2026, the average hourly pay for ibm mainframe computer operator 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 an IBM Mainframe Computer Operator job?

An IBM Mainframe Computer Operator monitors and controls mainframe computer systems, ensuring they run efficiently and without errors. They perform batch processing, troubleshoot system malfunctions, and follow operational procedures to maintain uptime. Operators may also handle backups, schedule jobs, and work with system administrators to resolve technical issues. This role is essential for businesses relying on mainframes for critical operations.

What are the key skills and qualifications needed to thrive in the Ibm Mainframe Computer Operator position, and why are they important?

To thrive as an IBM Mainframe Computer Operator, you need a solid understanding of mainframe operating systems, batch processing, and job scheduling, often supported by a degree in computer science or related IT certifications. Familiarity with tools such as IBM z/OS, JCL (Job Control Language), and mainframe monitoring software is typically required. Attention to detail, problem-solving abilities, and effective communication are essential soft skills for this position. These competencies ensure that mainframe operations run smoothly, errors are minimized, and mission-critical systems remain reliable in high-demand environments.

What are the typical daily responsibilities of an IBM Mainframe Computer Operator?

As an IBM Mainframe Computer Operator, your daily tasks typically include monitoring mainframe systems, executing and troubleshooting batch jobs, and responding to system alerts or hardware issues. You'll often work closely with other IT staff to ensure scheduled processes complete successfully and help resolve incidents that may impact business operations. Routine duties may also involve maintaining logs, performing system backups, and following established operating procedures to support organizational data integrity. The role usually operates in shifts, given the need for round-the-clock system availability, and may require occasional overtime or weekend work.

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Ibm Mainframe Computer Operator jobs near you
Infographic showing various Ibm Mainframe Computer Operator job openings in Chicago, IL as of June 2026, with employment types broken down into 100% Contract. Highlights an 100% In-person job distribution, with an average salary of $114,373 per year, or $55 per hour.
Software Development Engineer in Test(SDET)

Software Development Engineer in Test(SDET)

Broadcom

Lisle, IL • On-site

Full-time

Posted 29 days ago

Broadcom rating

8.7

Company rating: 8.7 out of 10

Based on 23 frontline employees who took The Breakroom Quiz

11th of 139 rated electronics manufacturers

Job description

Job Summary:
Broadcom’s Mainframe Software Division is looking for a talented Software Development Engineer in Test(SDET) to join their Mainframe Security and Compliance team. The SDET will be responsible for designing, developing, and implementing automated tests, assessing test automation tools, and ensuring overall software quality.
Responsibilities:
• Adopt a test-first approach to software development in which, where possible, the test is developed before the code.
• Assess, define, and document test framework(s), including use of technology stack(s) and test automation tools, considering the long-term maintainability of automated testing.
• Establish performance testing baselines and define benchmarking strategies.
• Provide leadership on industry-standard testing processes (e.g., BDD) and develop automated and manual testing strategies.
• Participate in design and code reviews with other engineers.
• Develop comprehensive test plans and facilitate collaborative team reviews to finalize the testing strategy.
• Review and analyze product code changes to design better test cases and strategies
• Define and create pipelines to enable Continuous Testing within Agile teams.
• Write programs, utilities, scripts and pipelines to support the following:
• Testing in various test streams such as Integration, System, Performance, and Compatibility
• Destructive testing and validation of system recoverability
• Boundary and edge case testing
• Load and scalability testing
• Concurrency testing
• Update automated regression tests for newly identified defects where appropriate.
• Maintain the outcome of automated testing, including reviewing and resolving false positives and improving fragile tests.
• Execute manual and exploratory testing as required.
• Identify and mitigate potential security vulnerabilities in the testing process and tools.
Qualifications:
Required:
• At least 5+ years of experience testing modern large-scale software and complex test configurations
• Has mastered the basics of operating as a developer in the IBM mainframe environment
• Basic understanding of CICS architecture and commands
• Experience in implementing JCL to execute batch processes in zOS or zVSE
• Additional experience in one or more of the following: Metal C, REXX, CLIST, ISPF, JES 2/3+
• Legal Authorization To Work In USA Is Required.
Preferred:
• Bachelor’s or master’s degree in Engineering or related field
Company:
Broadcom is a designer, developer, and global supplier of a broad range of analog and digital semiconductor connectivity solutions. Founded in 1991, the company is headquartered in Palo Alto, USA, with a team of 10001+ employees. The company is currently Late Stage.

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