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Mainframes Developer Jobs in Illinois (NOW HIRING)

VIVA USA INC

Mainframe Integration Engineer

Springfield, IL · On-site

$103K - $138K/yr

Integration Engineering Skills: Skills in system integration and testing, ensuring seamless operation across mainframe and non-mainframe platforms and expertise in common Mainframe technologies ...

Infojini Inc

Cobol Developer

Springfield, IL · On-site

$49.75 - $67.50/hr

An experienced developer with mainframe/COBOL experience to work in business application development. Environment and tools are IBM Mainframe platform, z/OS operating system, TSO/ISPF and DB2.

mLogica

Senior Mainframe Administrator

Springfield, IL · On-site

Required Skills & Experience * 10+ years in IBM Z mainframe operations , storage, or DR engineering. * Hands‑on experience with IBM DS8000 , FICON , Metro Mirror , Global Mirror , GDPS , HyperSwap ...

Ensono

Mainframe Security Engineer

Downers Grove, IL · On-site

Employee The primary role of the Mainframe System Security Engineer is to create, modify and maintain security access on internal and external userids and security rules access for mainframe systems.

VIVA USA INC

Mainframe Security Specialist

Springfield, IL · On-site

$48.50 - $62.50/hr

Mainframe Security Skills: Proficiency in mainframe security (e.g., RACF, Data security, and network protocols) to safeguard sensitive payroll data and ensure compliance and expertise in common ...

Amaze Systems Inc.

Senior Developer

Naperville, IL · On-site

$54.50 - $72/hr

Technical Skills (APPS)-Mainframe-Language-Mainframe - COBOL Job : Technical Lead Other Requirement ... Developer Mandatory Skills Mainframe Cobol (Primary) JCL CICS VSAM Unix Shell scripting is ...

Noblesoft Technologies

zOS Technical Developer

Lisle, IL · On-site

$45 - $52/hr

Role - zOS Technical Developer Location -Lisle, Illinois (Onsite, no remote) JD: * 5-8+ years of experience in mainframe development. * Strong proficiency in COBOL, JCL, CICS, VSAM, DB2, IMS, REXX.

Broadcom

R&D Software Engineer

Lisle, IL · On-site

Required : • At least 8+ 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 ...

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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 are popular job titles related to Mainframes Developer jobs in Illinois? For Mainframes Developer jobs in Illinois, the most frequently searched job titles are:
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:
Mainframes Developer jobs near you
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 Integration Engineer

Mainframe Integration Engineer

VIVA USA INC

Springfield, IL • On-site

$103K - $138K/yr

Contractor

Posted 25 days ago

Job description

Position Overview
Description:
Integration Engineering Skills:
Skills in system integration and testing, ensuring seamless operation across mainframe and non-mainframe platforms and expertise in common Mainframe technologies including but not limited to (e.g., Assembler, COBOL, EasyTrieve, CICS, CISC Map, DB2, JCL, CA Scheduler, MS, Rocket Software Mobius, CA-TELON, among others described throughout the RFP) for payroll system development and maintenance.
VIVA is an equal opportunity employer. All qualified applicants have an equal opportunity for placement, and all employees have an equal opportunity to develop on the job. This means that VIVA will not discriminate against any employee or qualified applicant on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status

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