Mainframe Modernization Engineer

CGI•Lafayette, LA

13h•Hybrid

About The Position

CGI is seeking a Mainframe Developer to support a legacy mainframe modernization initiative. The role uses code conversion tools to accelerate modernization and refactors existing COBOL programs for a modernized DB2-based architecture. The engineer reviews and modifies code, compiles and executes applications, and tests them to ensure functional correctness. This is a full-time opportunity in Lafayette, Louisiana, described as on-site in a hybrid model. The engineer works with Agile teams across development, testing, defect resolution, and releases, following SDLC processes and coding standards. The role also involves validating functional and data-level equivalence between legacy and modernized applications, troubleshooting mainframe and data issues, and managing code promotion and deployment activities.

Requirements

At least 8 years of hands-on experience as a mainframe developer, with expertise in COBOL, JCL, VSAM, and DB2.
Strong hands-on experience in COBOL, JCL, DB2, and SQL development.
Good working knowledge of VSAM and legacy file-processing concepts.
Understanding of legacy mainframe file-access mechanisms.
Experience modifying, debugging, and maintaining existing COBOL applications.
Experience with mainframe application modernization, migration, or refactoring.
Ability to review and validate automatically converted or refactored code.
Strong debugging and troubleshooting skills using tools such as Xpeditor.
Good knowledge of Endevor, including package creation, code migration, deployment, and release management.
Strong experience working in Agile/Scrum teams; stated as mandatory.
Strong understanding of SDLC and end-to-end application development processes.
Strong problem-solving and analytical skills.
Good communication and collaboration skills.
Bachelor's degree in computer science or a related field.

Nice To Haves

Experience with BDAM-to-DB2 migration.
Experience with automated code conversion tools.
Experience with COBOL application modernization.
Experience working with mainframe utilities.
Experience with legacy-to-modern database migration.
Knowledge of DB2 performance and SQL optimization.

Responsibilities

Analyze existing COBOL programs and understand their business and technical logic.
Review and validate COBOL code and make necessary modifications.
Refactor COBOL programs to support DB2-based data processing, including validating SQL and data-access logic.
Develop and modify JCL, execute mainframe jobs, and troubleshoot job failures, abends, and application issues.
Perform unit, integration, and regression testing and validate functional and data-level equivalence between legacy and modernized applications.
Troubleshoot COBOL, JCL, DB2, and data-related issues using tools such as Xpeditor.
Manage code promotion, package creation, and deployment activities using Endevor.
Collaborate with Agile teams through development, testing, defect resolution, and release activities while following SDLC processes and coding standards.