Technical Manager

Mainframe Support Analyst

The Mainframe Support Analyst will provide L2/L3 technical support for IBM z/OS mainframe applications, ensuring stability, performance, and timely resolution of incidents across non-production and production environments. The role is critical for batch operations, DB2 support, deployment activities, and root-cause analysis, particularly in large retail and supply-chain transformation programs.

Must-Have Skills (Required in Resume)

• DB2
• COBOL
• VSAM
• CICS

Key Responsibilities

Mainframe Application & Production Support (L2/L3)

• Provide end-to-end support for mainframe applications running on IBM z/OS.
• Analyze and resolve incidents related to JCL abends, DB2 errors, data issues, and code defects.
• Perform root-cause analysis by reviewing COBOL, DB2 programs, and batch execution logs.
• Support production and non-production environments, ensuring SLA adherence.

Batch Processing & Deployment

• Build and maintain batch jobs by copying and parameterizing JCLs across environments.
• Schedule, automate, and monitor end-to-end batch cycles.
• Resolve batch failures and performance issues.
• Support code promotion and deployment activities across test and production environments.
• Manage dataset setup, environment parameterization, and deployment prerequisites.

DB2 DBA & Data Support

• Perform DB2 L2/L3 support activities including:
• Creation, alteration, and maintenance of DB2 objects.
• Plan and package creation, binding, and rebinding.
• DB2 utilities such as UNLOAD, LOAD, RUNSTATS, and REORG.
• Coordinate with RACF/security teams to ensure proper DB2 access and controls.
• Perform DB2 backups, restores, and image copy management to support testing needs.

CICS, MQ & File Transfers

• Support CICS applications by navigating screens and analyzing logs.
• Understand and troubleshoot MQ message flows and integrations.
• Manage Connect:
  
  Direct file transfers between systems and support batch file movements.

Automation & Continuous Improvement

• Analyze and enhance existing REXX scripts for automation.
• Identify opportunities to automate repetitive support tasks (batch scheduling, deployments, retrofits).
• Support environment retrofits such as DB2 structural changes, static data updates, and package rebinds.

Required Skills & Experience

• Total
  
  Experience:
  
  14.00 Years
• Support
  
  Experience:
  
  5–10+ years in Mainframe Application Support / Operations
• Mainframe Technologies: IBM z/OS, COBOL, JCL
• Databases: DB2 (L2/L3 support, utilities, performance tuning basics)
• Middleware: CICS, IBM MQ (working knowledge)
• Batch & Scheduling: CA-7 / ESP or equivalent schedulers
• Automation: REXX scripting
• Security: RACF (working knowledge)