Mainframe Engineer: COBOL/DevOps on IBM z/OS

Cognizant; Hartford (CT); On-site; USD 99,000 - 116,000; Full time

Job summary

Cognizant is seeking a Mainframe Developer to design, develop, and maintain COBOL applications on IBM z/OS. You will use Endevor for change management and contribute to DevOps practices to automate builds, tests, and deployments.

You will develop, enhance, and support batch and online COBOL programs, manage promotions across Dev, QA, Prod, and build CI/CD pipelines for mainframe code. Strong debugging skills and experience with JCL/TSO/VSAM are essential.

Qualifications

• 5+ years COBOL development on IBM z/OS.
• Hands-on Endevor experience with promotions.
• Experience building CI/CD pipelines for mainframe.

Responsibilities

• Develop, enhance, and support batch and online COBOL programs.
• Manage code promotion across environments (Dev, QA, Prod) using Endevor.
• Build and maintain CI/CD pipelines for mainframe code (build, test, deploy).
• Automate repetitive tasks such as compiles, deployments, and testing using scripting.
• Integrate Endevor with Git and DevOps toolchains.
• Build and maintain JCL, PROCs, and scheduling dependencies.
• Troubleshoot production issues, including abends and performance problems.
• Support UAT, prepare implementation plans, and follow release governance.
• Collaborate with onshore/offshore teams and document technical designs

Skills

COBOL z/OS

Endevor

CI/CD

Git integration

Zowe

JCL/TSO/VSAM

DB2/IMS

CICS

Shell/Python

Education

Bachelor's degree in CS/IT

Tools

Jenkins

GitLab CI

Azure DevOps

Endevor Bridge for Git

Job description

Cognizant is seeking a Mainframe Developer to design, develop, and maintain COBOL applications on IBM z/OS. You will use Endevor for change management and contribute to DevOps practices to automate builds, tests, and deployments.

You will develop, enhance, and support batch and online COBOL programs, manage promotions across Dev, QA, Prod, and build CI/CD pipelines for mainframe code. Strong debugging skills and experience with JCL/TSO/VSAM are essential.