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Mainframe Development Jobs in Chicago, IL (NOW HIRING)

Cobol Developer

Chicago, IL · On-site

$90K - $118K/yr

Required Skills * 7+ years of experience in Mainframe Development. * Strong hands-on experience with: * COBOL * JCL * VSAM * DB2 * Flat file processing * COBOL Copybooks (including multiple redefined ...

Mainframe CICS Systems Engineer

Chicago, IL · On-site

$50.50 - $65/hr

ETS provides capabilities for all stages of Morgan Stanley's software development lifecycle ... The Mainframe CICS Systems Programmer/Engineer is responsible for all phases of CICS engineering ...

Tandem Developer

Rolling Meadows, IL · On-site

$49.25 - $63.25/hr

Minimum 5 years of experience in Tandem development and analysis * Experience in insurance claims handling or related industries is a plus Skills * Mandatory Skills : CICS,JCL,Mainframe Enterprise ...

RACF Mainframe Security Engineer

Chicago, IL · On-site +1

$70K - $140K/yr

The RACF Mainframe Security Engineer is accountable for delivery and implementation of IAM ... Foster a culture of continuous learning, skill development, and collaboration within the Role ...

R&D Engineer Software 3

Lisle, IL · On-site

$100 - $125/hr

## R&D Engineer Software 3Applylocations: USA-IL Lisle Warrenville Roadtime type: Full timeposted on ... Broadcom's Mainframe Software Division (MSD) is looking for a talented and motivated Software ...

Broadcom's Mainframe Software Division (MSD) is looking for a talented and motivated Software ... In this role, you will be a key member of the development team and will focus on building, testing ...

R&D Software Engineer

Lisle, IL · On-site

$125 - $150/hr

R&D Software Engineer Lead mainframe security software development while mentoring juniors and coordinating with stakeholders Location: Lisle, IllinoisDurham, North CarolinaPlano, Texas Compensation ...

Broadcom's Mainframe Software Division (MSD) is looking for a talented, motivated, and experienced ... In this role, you will be a key member of the development team and will focus on building, testing ...

Showing results 21-40

Mainframe Development information

See Chicago, IL salary details

$10

$54

$74

How much do mainframe development jobs pay per hour?

As of Sep 8, 2026, the average hourly pay for mainframe development 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 the difference between Mainframe Development vs Mainframe Testing?

AspectMainframe DevelopmentMainframe Testing
Primary FocusDesigning, coding, and maintaining mainframe applicationsVerifying and validating mainframe applications for bugs and performance
Required SkillsCOBOL, JCL, DB2, CICSTesting tools, scripting, debugging, knowledge of mainframe environments
Work EnvironmentDevelopment teams, coding in mainframe environmentsQuality assurance teams, testing labs, mainframe systems
CertificationsCOBOL certifications, IBM mainframe certificationsISTQB, mainframe testing certifications

While Mainframe Development involves creating and maintaining mainframe applications, Mainframe Testing focuses on ensuring those applications work correctly and efficiently. Both roles require knowledge of mainframe environments and related skills, but they serve different stages in the software lifecycle.

Is mainframe development a good career?

Mainframe development is a stable career with high demand in industries like finance and government that rely on legacy systems. It requires knowledge of languages such as COBOL and tools like JCL, and often offers competitive salaries and job security due to the specialized skills involved.

Is mainframe development still in demand?

Mainframe development remains in demand in industries such as finance, government, and healthcare that rely on legacy systems for critical operations. Skilled mainframe developers with knowledge of COBOL, JCL, and mainframe environments are sought after to maintain and modernize these systems, ensuring their continued relevance in enterprise IT infrastructure.

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 typically collaborate with system administrators and analysts to ensure smooth operation of enterprise systems.

Cobol Developer

United Airlines

Chicago, IL • On-site

$90K - $118K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 20 days ago


Key responsibilities

  • Analyze and process mainframe flat files and COBOL copybooks, including complex redefined structures.

  • Extract, unpack, transform, and validate data for ingestion into Google Cloud Platform (GCP) and Data Lake environments.

  • Support data migration, conversion, and testing activities.


United Airlines rating

7.9

Company rating: 7.9 out of 10

Based on 343 frontline employees who took The Breakroom Quiz

8th of 26 rated airlines


Job description

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you'd like, where you'll be supported and inspired bya collaborative community of colleagues around the world, and where you'll be able to reimagine what's possible. Join us and help the world's leading organizationsunlock the value of technology and build a more sustainable, more inclusive world.

Location: Dearborn, MI
Job Description

Job Summary

We are seeking an experienced Mainframe/COBOL Developer to support a critical legacy insurance platform (CPS) and assist with data preparation activities for migration to Google Cloud Platform (GCP). The resource will work on extracting, analyzing, transforming, and validating data from mainframe systems for Data Lake consumption and support the broader CPS modernization and cloud migration program.

 

Key Responsibilities

  • Analyze and process mainframe flat files and COBOL copybooks, including complex redefined structures.
  • Extract, unpack, transform, and validate data for ingestion into Google Cloud Platform (GCP) and Data Lake environments.
  • Collaborate with business and technical teams to understand legacy data structures and transformation requirements.
  • Create data mapping, reconciliation, and validation documentation.
  • Support data migration, conversion, and testing activities.
  • Assist in the modernization and migration of legacy CPS applications to GCP.
  • Troubleshoot data quality and conversion issues throughout the migration lifecycle.

Required Skills

  • 7+ years of experience in Mainframe Development.
  • Strong hands-on experience with:
  • COBOL
  • JCL
  • VSAM
  • DB2
  • Flat file processing
  • COBOL Copybooks (including multiple redefined copybooks)
  • Experience analyzing and transforming large volumes of legacy data.
  • Strong understanding of data migration and conversion methodologies.
  • Experience with data validation and reconciliation activities.
  • Excellent analytical and problem-solving skills.

Preferred Skills

  • Insurance domain experience (Claims and Policy Administration systems preferred).
  • Experience supporting legacy modernization initiatives.
  • Exposure to Cloud platforms, preferably Google Cloud Platform (GCP).
  • Experience working with Data Lakes, ETL, and data transformation frameworks.
  • Familiarity with mainframe-to-cloud migration programs.

The base compensation range for this role in the posted location is: $90000 to $118665

Capgemini provides compensation range information in accordance with applicable national, state, provincial, and local pay transparency laws. The base compensation range listed for this position reflects the minimum and maximum target compensation Capgemini, in good faith, believes it may pay for the role at the time of this posting. This range may be subject to change as permitted by law.

The actual compensation offered to any candidate may fall outside of the posted range and will be determined based on multiple factors legally permitted in the applicable jurisdiction.

These may include, but are not limited to: Geographic location, Education and qualifications, Certifications and licenses, Relevant experience and skills, Seniority and performance, Market and business consideration, Internal pay equity.

It is not typical for candidates to be hired at or near the top of the posted compensation range.

In addition to base salary, this role may be eligible for additional compensation such as variable incentives, bonuses, or commissions, depending on the position and applicable laws.

Capgemini offers a comprehensive, non-negotiable benefits package to all regular, full-time employees. In the U.S. and Canada, available benefits are determined by local policy and eligibility and may include: 

  • Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade, Company paid holidays, Personal Days, Sick Leave
  • Medical, dental, and vision coverage (or provincial healthcare coordination in Canada)
  • Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
  • Life and disability insurance
  • Employee assistance programs
  • Other benefits as provided by local policy and eligibility

Important Notice: Compensation (including bonuses, commissions, or other forms of incentive pay) is not considered earned, vested, or payable until it becomes due under the terms of applicable plans or agreements and is subject to Capgemini's discretion, consistent with applicable laws. The Company reserves the right to amend or withdraw compensation programs at any time, within the limits of applicable legislation.

Disclaimers

Capgemini is an Equal Opportunity Employer encouraging inclusion in the workplace. Capgemini also participates in the Partnership Accreditation in Indigenous Relations (PAIR) program which supports meaningful engagement with Indigenous communities across Canada by promoting fairness, accessibility, inclusion and respect.  We value the rich cultural heritage and contributions of Indigenous Peoples and actively work to create a welcoming and respectful environment. All qualified applicants will receive consideration for employment without regard to race, national origin, gender identity/expression, age, religion, disability, sexual orientation, genetics, veteran status, marital status or any other characteristic protected by law.

This is a general description of the Duties, Responsibilities and Qualifications required for this position. Physical, mental, sensory or environmental demands may be referenced in an attempt to communicate the manner in which this position traditionally is performed. Whenever necessary to provide individuals with disabilities an equal employment opportunity, Capgemini will consider reasonable accommodations that might involve varying job requirements and/or changing the way this job is performed, provided that such accommodation does not pose an undue hardship. Capgemini is committed to providing reasonable accommodation during our recruitment process. If you need assistance or accommodation, please reach out to your recruiting contact.

Please be aware that Capgemini may capture your image (video or screenshot) during the interview process and that image may be used for verification, including during the hiring and onboarding process.

Click the following link for more information on your rights as an Applicant in the United States.  http://www.capgemini.com/resources/equal-employment-opportunity-is-the-law

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.


What United Airlines employees say

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About United Airlines

Sourced by ZipRecruiter

United Airlines is embarking on an exciting journey to become the best airline in aviation history. Our purpose, "Connecting People, Uniting the World," extends beyond transportation, emphasizing our commitment to uplift and create opportunities in the places we serve. With a global presence and diverse workforce, we value inclusivity and are dedicated to hiring tens of thousands of individuals across various roles. Our comprehensive benefits package, including perks like space available travel, parental leave, and 401k, aims to support your well-being and growth.

Industry

Aviation

Company size

10,000+ Employees

Headquarters location

Chicago, IL, US

Year founded

1926

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