Mainframe Production Support

Production support - Mainframe

Common Stack & Tools

• Backend: JCL, COBOL, DB2, CICS
• Operating System: z/OS, OS/390, MVS
• Tools: CA7, ESP, ChangeMan, Endevor, SPUFI, File Manager

Mainframe Production Senior Support Engineer (35 yrs)

• Scope & Impact
• Contribute to the production support and operational stability of assigned applications/domains.
• Work closely with senior engineers and crossfunctional teams to ensure timely incident resolution and smooth daytoday operations.
• Provide technical insights around system behavior, performance, and recurring issues.

• Core Responsibilities
• Ensure stable production operations through active monitoring, alert handling, and proactive issue detection.
• Manage the incident lifecycle (P3–P5) including triage, analysis, coordination, and resolution under guidance for P1, P2 issues.
• Maintain and update runbooks, SOPs, playbooks, and knowledge base to support consistent operations.
• Support and enhance the observability setup—dashboards, alerts, logs, metrics.
• Provide operational support across L1/L2 activities and contribute to L3 investigation under guidance.
• Participate in oncall rotations and adhere to team schedules and workload priorities.
• Communicate effectively with business and engineering teams on incident updates, impact, and resolutions.
• Ensure compliance with change management, audit needs, and security standards.
• Track key operational metrics such as SLA adherence, MTTA, and MTTR.

• MustHave Skills
• Strong foundation in incident, problem, and change management processes (ITIL v4 exposure preferred).
• Familiarity with Changeman/similar version control tools
• Ability to read and debug mainframe code for issue diagnosis.
• Strong analytical skills and ability to work collaboratively within support teams.

• NicetoHave
• Experience with ServiceNow, ESP, and Rally.

Basic knowledge of Rex and automation scripting.