Job Description – Mainframe Developer
Primary Skills (Required Skills)
REXX
COBOL , JCL , CLIST
Desired Skills: DB2, CICS
We are seeking an experienced Mainframe Developer with robust hands-on expertise across the
z/OS ecosystem. The ideal candidate will have solid experience in CICS Online transaction
processing, COBOL application development, and JCL for batch job scheduling and workflow
management. Proficiency in DB2, including query writing and optimization using Topaz, is required.
Working knowledge of REXX scripting for automation, Easytrieve for report generation and data

extraction, and exposure to zAPIs for mainframe integration with modern applications is highly
desirable.
Key Responsibilities:
∙Design, develop, test, and maintain mainframe applications using COBOL, CICS, and JCL




∙Write and optimize DB2 queries using Topaz for Program Analysis/Query tools
∙Develop automation scripts using REXX to streamline operational tasks
∙Build and maintain Easytrieve programs for data reporting and extraction
∙Work with zAPIs to enable integration between mainframe systems and external/modern
platforms
∙Debug, troubleshoot, and resolve production issues in a timely manner
∙Collaborate with cross-functional teams to support enhancements and recent development
Required Skills:
CICS Online | COBOL | JCL | DB2 (Topaz) | REXX | Easytrieve | zAPIs

📌 Mainframe Developer (Chennai)
🏢 Vysystems
📍 Chennai