Jobs in the United States

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Added 13 mins ago
Enterprise Solutions Architect-Senior/Consultant
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Added 13 mins ago
Software Development Test Engineer
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C
Senior Full Stack Engineer – .NET & C#
Cognizant
Jefferson City, MO
- $86,000 to $99,000 USD / year
Troubleshoot complex production issues across front-end, back-end, API, and database layers while improving application performance, availability, and response times.
Added 13 mins ago
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Senior .NET Full Stack Developer – C#
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Jefferson City, MO
- $86,000 to $99,000 USD / year
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Added 13 mins ago
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Senior .NET Full Stack Engineer with C#
Cognizant
Jefferson City, MO
- $86,000 to $99,000 USD / year
Troubleshoot complex production issues across front-end, back-end, API, and database layers while improving application performance, availability, and response times.
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C
Senior Mainframe CoolGen Developer
Cognizant
Jefferson City, MO
- $105,000 to $120,000 USD / year
We are looking for an experienced Senior Mainframe CoolGen Developer to design, develop, test, enhance, and support high-volume, reliable enterprise applications built on CA Gen/CoolGen and…
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Added 36 mins ago
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Agentic Full-Stack Engineer
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Added 54 mins ago
Agentic Full-Stack Engineer
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Cognizant

Senior Mainframe CoolGen Developer

Jefferson City, MO, United States

$105,000 to $120,000 USD / year

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Job details

Pay: $105,000 to $120,000 USD / year
Experience: 9+ years of relevant experience in designing, developing, testing, maintaining, and supporting enterprise Mainframe applications.
Posting language: English
Posted: Nov 10, 2026

Original job description

About the role

We are looking for an experienced Senior Mainframe CoolGen Developer to design, develop, test, enhance, and support high-volume, reliable enterprise applications built on CA Gen/CoolGen and Mainframe technologies.

In this role, you will work with business-critical applications, contribute to technical design and modernization initiatives, resolve complex application and production issues, and collaborate with business, application, infrastructure, and cross-functional teams.

In this role, you will:

Design, develop, test, enhance, maintain, and support high-volume enterprise applications using CA Gen/CoolGen and Mainframe technologies.

Contribute to application design and technical standards for Mainframe and CA Gen solutions.

Assess legacy CA Gen applications for maintainability, scalability, performance, and modernization readiness.

Support technical design across database, interface, batch, online, and integration components.

Perform technical impact analysis, debugging, root-cause analysis, defect resolution, code reviews, and performance tuning.

Support batch processing activities, including job scheduling, dependency analysis, job-abend resolution, restart/recovery, and batch-cycle monitoring.

Contribute to modernization initiatives such as component rationalization, API enablement, re-platforming, and progressive replacement.

Support unit testing, system integration testing (SIT), user acceptance testing (UAT), release and deployment activities, and post-production validation.

Provide technical guidance to team members and support complex development and design decisions.

Work model

We strive to provide flexibility wherever possible. Based on this role's business requirements, this is a Remote position open to qualified applicants in the United States . Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

What you need to have to be considered

9+ years of relevant experience in designing, developing, testing, maintaining, and supporting enterprise Mainframe applications.

Strong hands-on experience in CA Gen/CoolGen application development, which is a must-have requirement for this role.

Strong technical proficiency in Mainframe technologies, including COBOL, JCL, DB2, CICS, TSO/ISPF, and VSAM.

Proven experience with application development, enhancements, maintenance, and production support of business-critical Mainframe applications.

Strong knowledge of DB2/SQL, including database queries, data analysis, troubleshooting, and performance optimization.

Experience with batch processing, including job scheduling, dependency analysis, abend resolution, restart/recovery, and batch-cycle monitoring.

Ability to perform technical impact analysis, debugging, root-cause analysis, defect resolution, and code reviews across CA Gen and Mainframe components.

Experience supporting unit testing, SIT, UAT, release/deployment activities, and post-production validation.

Strong analytical, troubleshooting, documentation, and communication skills, with the ability to collaborate effectively across business and technical teams.

Experience assessing legacy CA Gen applications for maintainability, scalability, and modernization readiness.

Exposure to modernization approaches such as component rationalization, API enablement, re-platforming, or progressive replacement.

These will help you stand out

Experience resolving complex performance and production issues across CA Gen and Mainframe applications.

Experience providing technical guidance on complex application development and design decisions.

We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.

Salary and Other Compensation

The annual salary for this position is between $105,000 to $120,000 depending on experience and other qualifications of the successful candidate.

This position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and subject to the terms of Cognizant’s applicable plans.

Benefits

Medical/Dental/Vision/Life Insurance
Paid holidays plus Paid Time Off
401(k) plan and contributions
Long-term/Short-term Disability
Paid Parental Leave
Employee Stock Purchase Plan

Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

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More about this job

Skills

Debugging
Root cause analysis
Scheduling
Unit testing
ICT system integration
REST Assured
COBOL
JCL
IBM DB2
CICS
TSO
SQL
Data analysis
Troubleshooting
Documentation
Communication skills

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Work requirements

Jobs in the United States