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Mainframes Developer Jobs in Illinois (NOW HIRING)

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 ...

CICS/MQ Systems Programmer

Chicago, IL · Remote

$56.75 - $72/hr

CICS /MQ MAINFRAME SYSTEMS PROGRAMMER CICS ~~ MQ ~~ Z/OS MAINFRAME SYSTEMS ~~ SMP/E ~~ JES 2 ~~ CICSPLEX ~~ INFRASTRUCTURE REMOTE !!~~ REMOTE!! ~~~~FULL TIME WITH BENEFITS/ANNUAL BONUS OPPORTUNITY~

Cobol Developer

Chicago, IL · On-site

$90 - $119/hr

Dearborn, MI Job SummaryWe are seeking an experienced Mainframe/COBOL Developer to support a critical legacy insurance platform (CPS) and assist with data preparation activities for migration to ...

Cobol Developer

Chicago, IL · On-site

$90K - $118K/yr

Analyze and process mainframe flat files and COBOL copybooks, including complex redefined ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

Mainframe Development

Chicago, IL · Remote

$50.50 - $65/hr

Customer 1 with Mainframe Development Remote :: * Hands on experience (# C/1 skill) -SME * Domain: CSS supplier services (#2 skill) * Get requirements from customer, Get description done based on ...

Knowledge in at least two additional areas of technical disciplines is a strong plus: mainframe security, system programming, parallel sysplex, network, storage, High Availability, Performance and ...

Analyze and process mainframe flat files and COBOL copybooks, including complex redefined ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

Mainframe Development

Chicago, IL · Remote

$50.50 - $65/hr

Customer 1 with Mainframe Development Remote :: * Hands on experience (# C/1 skill) -SME * Domain: CSS supplier services (#2 skill) * Get requirements from customer, Get description done based on ...

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.

R&D Engineer Software 3

Lisle, IL · On-site

$91.10 - $146/hr

Broadcom's Mainframe Software Division (MSD) is looking for a talented and motivated Software Engineer with a passion for building high-quality applications using agile practices to join our ...

Broadcom's Mainframe Software Division (MSD) is looking for a talented and motivated Software Engineer with a passion for building high-quality applications using agile practices to join our ...

Mainframe CICS and MQ

Chicago, IL · On-site

$50.50 - $65/hr

... collaborate with application developers on application design. ? Support for application ... Additional Information Strong experience in Mainframe CICS and MQ

Showing results 41-60

Mainframes Developer information

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.

Is a mainframes developer a good career?

A mainframes developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the ongoing need to maintain and upgrade existing mainframe applications. However, the number of new positions is limited compared to emerging technologies, and skills in mainframe modernization are increasingly valued.

What does a mainframes developer do?

A mainframes developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of large-scale enterprise systems, frequently working with legacy code and mainframe-specific tools in a structured environment.

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 August 2026, with employment types broken down into 85% Full Time, 2% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Senior Developer

Amaze Systems Inc.

Naperville, IL • On-site

$54.50 - $72/hr

Contractor

Re-posted 28 days ago


Job description


Designation : Technical Lead
Location : Illinois
No. of Positions : 1
Job Description (Posting). : To be responsible for managing technology in projects and providing technical guidance / solutions for work completion (1.) To be responsible for providing technical guidance / solutions ;define, advocate, and implement best practices and coding standards for the team. (2.) To develop and guide the team members in enhancing their technical capabilities and increasing productivity (3.) To ensure process compliance in the assigned module| and participate in technical discussions/review as a technical consultant for feasibility study (technical alternatives, best packages, supporting architecture best practices, technical risks, breakdown into components, estimations). (4.) To prepare and submit status reports for minimizing exposure and risks on the project or closure of escalations.
Skill (Primary) : Technical Skills (APPS)-Mainframe-Language-Mainframe - COBOL
Job : Technical Lead
Other Requirement :

Position Details

SR Number

Job Location/Client Location (with City & State)

Naperville, IL, USA

Remote ok (Yes / No)

No (Day-1 onsite)

Project Duration

6+ Months

Project Start date

Asap

Buy Rate

Exclusive to HCLTech(Y/N)

Yes

Mode (TP/FTE)

Contract to Hire

No of openings/positions

1

Job Title/Role

Senior Developer

Mandatory Skills

Mainframe Cobol (Primary)
JCL
CICS
VSAM
Unix Shell scripting is preferred

Client Interview Needed for Selection (Yes / No)

No

Job Description

To be responsible for managing technology in projects and providing technical guidance / solutions for work completion (1.) To be responsible for providing technical guidance / solutions; define, advocate, and implement best practices and coding standards for the team. (2.) To develop and guide the team members in enhancing their technical capabilities and increasing productivity (3.) To ensure process compliance in the assigned module| and participate in technical discussions/review as a technical consultant for feasibility study (technical alternatives, best packages, supporting architecture best practices, technical risks, breakdown into components, estimations). (4.) To prepare and submit status reports for minimizing exposure and risks on the project or closure of escalations.
Additional requirement:
This opening is for Application support and maintenance (AMS) project. To resolve the tickets raised as per the defined standards of time and to meet customer satisfaction. The scope of the opening is to work on L2L3 tickets (with code changes) and also to work on minor enhancements and change requests.
1. Primary knowledge in Mainframe Cobol.
2. Secondary knowledge in CICS, JCL, VSAM, Unix Shell scripting perl scripting is preferred.
3. Weekend deployment support is there.



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About Amaze Systems

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We strive to be the very best in our industry. We're the Best IT Specialists. We value our clients and their trust in us and hence, Our IT & Web Consultants don't hesitate to move mountains to give them high quality & innovative digital strategies, without resting, till they get the brand of their dreams. Our impeccable digital executions has helped several businesses multiply and increase their business enquiries substantially over years making us one of the most preferred online partners.

Industry

It services

Company size

501 - 1,000 Employees

Headquarters location

Dallas, TX, US

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