Application Developer – zOS

Hiring Alert | Application Developer – zOS | Bangalore We are hiring for the position of Application Developer – zOS with a leading global IT organization. Role: Application Developer – zOS Location: Bangalore Work Mode: Work From Office / Day 1 Reporting Interview Mode: Face-to-Face at IBM Location Job Overview: We are looking for an experienced Mainframe Practitioner with foundational Unix/Linux expertise for a large-scale Mainframe Rehosting Program involving migration from IBM z/OS to Unikix.

Key Responsibilities

• Perform end-to-end validation of mainframe batch jobs and online transactions
• Validate functional equivalence between z/OS and Unikix environments
• Conduct SIT, regression, baseline, comparison, and performance testing
• Execute and monitor batch cycles, reruns, restarts, and abend analysis
• Compare flat files, VSAM datasets, reports, and database outputs
• Create test plans, validation strategies, and documentation
• Support parallel run execution and migration validation
• Write basic Unix/Linux shell scripts for automation and validation support Required Skills: ✔ Strong hands-on experience in Mainframe technologies ✔ Knowledge of z/OS, Unikix, batch processing, and online validation ✔ Exposure to CA7 Scheduler ✔ Basic Unix/Linux scripting knowledge ✔ Strong analytical and defect resolution skills