Mainframe Modernization Engineer

Role & responsibilities

• Analyze existing RPG applications and support their conversion into COBOL programs.
• Validate converted programs to ensure functional accuracy and business logic consistency.
• Perform unit, functional, integration, and regression testing.
• Execute JCL job testing and validate batch-processing workflows across mainframe and GCP environments.
• Support CICS application and transaction validation during migration.
• Identify application defects, batch failures, and data inconsistencies during modernization.
• Perform root-cause analysis and implement permanent fixes for mainframe data-quality issues.
• Support workload migration, application validation, and production-readiness activities.
• Collaborate with cross-functional teams throughout the mainframe replatforming initiative.
• Maintain technical documentation for conversion, testing, defects, and migration activities.

Preferred candidate profile

• Strong hands-on experience in COBOL programming.
• Practical experience with RPG applications and RPG code analysis.
• Good working knowledge of JCL and CICS.
• Strong understanding of IBM Mainframe architecture and batch-processing concepts.
• Experience in legacy application development, maintenance, and modernization.
• Knowledge of application debugging, performance analysis, and troubleshooting.
• Experience in mainframe data analysis, data validation, and remediation.
• Exposure to Google Cloud Platform (GCP) and mainframe-to-cloud migration.
• Prior experience in mainframe replatforming, legacy modernization, or enterprise migration projects.
• Knowledge of automated code conversion, application assessment, and testing tools will be an added advantage.