Mainframe Production Support

Mainframe Technologies

IBM z/OS

TSO/ISPF

JCL (Job Control Language)

VSAM (KSDS, ESDS, RRDS)

SDSF

RACF security concepts

Programming Languages, COBOL, CICS, PL/I (optional in some environments), REXX scripting

Database Skills

DB2, SQL Queries, Stored Procedures, Performance tuning basics, IMS DB (if applicable)

Batch Processing

Job scheduling and monitoring, CA7, Control-M, ESP, Autosys or Tivoli Scheduler, Batch failure analysis and recovery

File Management

• GDG files
• Flat files
• File transfers (Connect:Direct, NDM, FTP/SFTP)
• File reconciliation

Incident & Problem Management

• ServiceNow
• Remedy
• Jira
• Root Cause Analysis (RCA)
• Production Incident Management

Monitoring Tools

• OMEGAMON
• Mainview
• Splunk
• AppDynamics
• Dynatrace (where integrated)

Roles and Responsibilities

• Monitor daily batch jobs and online transactions.
• Analyze and resolve production incidents.
• Support Severity 1 (Critical) and Severity 2 incidents.
• Perform job restarts and reruns.
• Analyze abends and failures.
• Coordinate with infrastructure, application, and business teams.
• Provide on-call support.
• Conduct Root Cause Analysis and prepare incident reports.
• Support releases and production deployments.

Salary - $80,000 to $110,000

Qualifications: BACHELOR OF COMPUTER SCIENCE