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Mainframes Developer Jobs in Illinois (NOW HIRING)

Mainframe Developer

Chicago, IL · On-site

$50.50 - $65/hr

MAINFRAME DEVELOPER Location: Chicago, IL (Full Onsite, Open to Relocating Candidates) Visa: Any visa except H1B We're looking for a Mainframe Developer to join our team! If you're experienced with ...

Mainframe Developer

Chicago, IL · On-site

$50.50 - $65/hr

Mainframe Developer Location: Chicago, IL & Richardson, TX Experience: Expert Level Employment Type: Contract * Expert-level proficiency in Mainframe technologies including COBOL, JCL, VSAM, DB2 ...

Mainframe Developer

Chicago, IL · On-site

$50.50 - $65/hr

Mainframe Developer (12+ YEARS) Location: Chicago, IL • Required Years of Experience: At least 12+ years of relevant experience • 12+ years of experience as a Mainframe Developer Required Skills ...

Mainframe Developer

Chicago, IL · On-site

$50.50 - $65/hr

Expert knowledge on mainframe programming languages and technologies namely COBOL, DB2, JCL, CICS, Mainframe MQ, VSAM and NDM * Strong understanding of the concept of relational databases with ...

Mainframe Developer

Rosemont, IL

$49.25 - $63.50/hr

Mainframe Developer Location: Rosemont,IL Duration: Fulltime Mainframe-L2 (Mandatory) As a Lead, you are responsible for managing a small team of analysts, developers, testers or engineers and drive ...

Mainframe Developer

Rosemont, IL · On-site

$49.25 - $63.50/hr

Mainframe Developer Location: Rosemont,IL Duration: Fulltime Mainframe-L2 (Mandatory) As a Lead, you are responsible for managing a small team of analysts, developers, testers or engineers and drive ...

Mainframe Developer

Rosemont, IL

$49.25 - $63.50/hr

Mainframe Developer Location: Rosemont,IL Duration: Fulltime Mainframe-L2 (Mandatory) As a Lead, you are responsible for managing a small team of analysts, developers, testers or engineers and drive ...

Mainframe Developer

Chicago, IL · On-site

$50.50 - $65/hr

12+ years of experience as a Mainframe Developer Required Skill Set : * COBOL * CICS * NATURAL AND ADABAS * CA7 needs to be advanced level - Someone who can develop Batch Automation Scripts from ...

Mainframe Developer

Riverwoods, IL · On-site

$35 - $40/hr

The Mainframe Developer will be responsible for developing, enhancing, and maintaining mainframe applications along with supporting batch processing, production stability, and system integrations.

Mainframe Developer

Springfield, IL · On-site

$80K - $140K/yr

The Mainframe Developer will support Barrow Wise's State of Illinois project and perform the following duties: * Write, test, and debug code * Create databases and manage data * Collaborate with team ...

Mainframe Developer

Springfield, IL

$48.50 - $62.50/hr

The Mainframe Developer will support Barrow Wise's State of Illinois project and perform the following duties: * Write, test, and debug code * Create databases and manage data * Collaborate with team ...

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 join its Project team in Chicago. The role involves installing, maintaining, upgrading, and supporting ...

Mainframe Developer

Chicago, IL

$50.50 - $65/hr

Strong diagnostic and problem-solving skills in complex mainframe environments. * Excellent written and verbal communication skills for cross-team collaboration.

Mainframe/Cobol developer

Bloomington, IL

$47 - $60.50/hr

Mainframe/Cobol developer * Resource needed with industry knowledge/experience of IBM's Rational Asset Analyzer (RAA) tool. * Preferable, but not mandatory is additional knowledge/experience of ...

Mainframe Software Development Engineer

Lisle, IL · On-site

$48.25 - $62.25/hr

Preferred : • Expertise on Mainframe extensible frameworks such as ZOWE and dealing with pass ... Broadcom is a designer, developer, and global supplier of a broad range of analog and digital ...

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing, maintaining, upgrading, and supporting various system software products for TNT's z/OS operating system ...

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Mainframes Developer information

What does a mainframe developer do?

A mainframe developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They work in environments that require high reliability and security, and may also handle system updates, performance tuning, and integration with other systems.

What is mainframe developer salary?

The salary for a mainframe developer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and certifications. Senior roles or those with specialized skills in COBOL, JCL, or mainframe environments may earn higher compensation. Many positions also offer benefits such as health insurance and retirement plans.

Can mainframe be replaced by AI?

Mainframes are large-scale computing systems used for critical enterprise applications, and while AI can automate certain tasks and improve efficiency, it does not replace the core functions of mainframes. Mainframe developers often work with legacy systems, COBOL programming, and security protocols, which require specialized skills that are not fully replaced by AI technologies.

Is mainframe still in demand?

Mainframes remain in demand for large enterprises such as banks, insurance companies, and government agencies that rely on their reliability, security, and processing power. Mainframe developers with skills in COBOL, JCL, and mainframe environments are sought after to maintain and upgrade legacy systems, though the overall demand has decreased as organizations adopt cloud and distributed computing. Certification and experience with mainframe tools can enhance job prospects in this specialized field.

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

What job categories do people searching Mainframes Developer jobs in Illinois look for? The top searched job categories for Mainframes Developer jobs in Illinois are:
What cities in Illinois are hiring for Mainframes Developer jobs? Cities in Illinois with the most Mainframes Developer job openings:
Infographic showing various Mainframes Developer job openings in Illinois as of June 2026, with employment types broken down into 33% Full Time, and 67% Contract. Highlights an 92% In-person, and 8% Hybrid job distribution.

Mainframe Developer

Kanak Elite Services Inc

Chicago, IL • On-site

$50.50 - $65/hr

Contractor

Posted 1 hour ago


Job description

Role: MAINFRAME DEVELOPER

Location: Chicago, IL (Full Onsite, Open to Relocating Candidates)

Visa: Any visa except H1B
We're looking for a Mainframe Developer to join our team! If you're experienced with mainframe technologies and meet the requirements below, we'd love to connect.
What we're looking for:
·      12+ years working with Mainframe technologies
·      Strong experience in NAT/ADABAS
·      COBOL, CICS, DB2, JCL, CA7
·      Financial industry experience is a bonus
 

Thanks & Regards,

Technical Recruiter

Anjali Sonkar

Email : Anjali08@kanakits.com