Mainframe Modernization Engineer

Intellibee; United States; On-site; USD 120,000 - 170,000; Full time

Job summary

Intellibee is seeking a z/OS DevOps Engineer with 5+ years in IBM Mainframe development, maintenance, and modernization, plus hands-on Git-based CI/CD and zDevOps experience.

You will develop and modernize Mainframe apps using COBOL, JCL, CICS, and DB2, support Endevor-to-Git migrations, and design automation in Python to streamline builds and deployments.

Collaborate with DevOps, Development, Infrastructure, and Release teams to implement Git-based workflows and ensure production stability.

Qualifications

• 5+ years of experience in IBM Mainframe development and DevOps.

Responsibilities

• Develop, maintain, and enhance Mainframe applications using COBOL, JCL, CICS, DB2, and related technologies.
• Participate in Mainframe Modernization and zDevOps transformation initiatives.
• Support Endevor-to-Git migration activities, including assessment, migration, validation, and post-migration support.
• Design and implement automation solutions to streamline migration, build, testing, and deployment processes.
• Collaborate with DevOps, Development, Infrastructure, and Release Management teams to establish Git-based development workflows.
• Perform unit testing, integration testing, system testing, and production implementation activities.
• Assist in CI/CD pipeline implementation and DevOps process improvements.
• Prepare technical documentation, migration guides, operational procedures, and knowledge-sharing materials.

Skills

COBOL

JCL

CICS

DB2

VSAM

TSO/ISPF

REXX

Python

5+ years Mainframe experience

Agile

Tools

Endevor

Git

GitHub

GitLab

Bitbucket

Zowe CLI

IDz

VS Code for Z

Job description

zDevOps & Git Transformation (5+ Years) Experience 5+ years of experience in IBM Mainframe application development, maintenance, modernization, and DevOps transformation with hands‑on experience in Git-based development practices, CI/CD implementation, and Mainframe modernization initiatives.

Required Skills

• Strong experience in COBOL, JCL, CICS, DB2, VSAM, TSO/ISPF, REXX, and Mainframe application development.
• Hands‑on experience with Endevor or similar Mainframe SCM tools.
• Experience with Git, GitHub, GitLab, Bitbucket, or other modern source code management platforms.
• Good understanding of zDevOps, CI/CD, Agile development, and Source Code Management practices.
• Experience supporting Endevor‑to‑Git migration and source code migration activities.
• Hands‑on experience with Python for automation, scripting, and tooling development.
• Familiarity with Zowe CLI, USS, IBM Developer for z/OS (IDz), and VS Code for Z.
• Experience in production support, application maintenance, code promotion, and release management.
• Understanding Mainframe modernization tools, development methodologies, and DevOps best practices.
• Knowledge of build automation, deployment automation, and Git‑based development workflows.

Responsibilities

• Develop, maintain, and enhance Mainframe applications using COBOL, JCL, CICS, DB2, and related technologies.
• Participate in Mainframe Modernization and zDevOps transformation initiatives.
• Support Endevor‑to‑Git migration activities, including assessment, migration, validation, and post‑migration support.
• Design and implement automation solutions to streamline migration, build, testing, and deployment processes.
• Collaborate with DevOps, Development, Infrastructure, and Release Management teams to establish Git‑based development workflows.
• Perform unit testing, integration testing, system testing, and production implementation activities.
• Assist in CI/CD pipeline implementation and DevOps process improvements.
• Prepare technical documentation, migration guides, operational procedures, and knowledge‑sharing materials.