[Hiring] Mainframe System Administrator @DMS Vision

Role Description

The Mainframe System Administrator is responsible for the administration, maintenance, and optimization of the Client's mainframe computing environment. This role ensures availability, performance, and integrity of mission-critical systems including z/OS, subsystems like Db2, and enterprise-level monitoring and storage platforms.

• Supports daily operations as well as project-based activities, such as modernization initiatives or disaster recovery planning.
• Focus: Primarily production support, with involvement in active projects (optimization, security, data center move, etc.)

Tech Environment:

• Operating System: z/OS
• Hardware: IBM Z15 (moderate size)
• Storage Systems:
  • Hitachi SAM
  • Data Domain (for backups)
• Applications: Written in COBOL — familiarity is helpful but not core
• Server: Single-server mainframe environment
• Ticketing Systems: Jira preferred, but ServiceNow or similar is acceptable

Qualifications

• Native z/OS system administration experience
• Strong knowledge of IBM Omegamon
• Working knowledge of Db2
• Solid change management experience (ITIL-aligned preferred)
• Experience with mainframe + storage integration
• Comfortable running ad hoc queries, optimizing performance, and supporting mainframe-based systems

Requirements

• Excellent communication skills — must be proactive and confident
• Must have a positive attitude, be independent, and able to "stand on their own two feet"
• Should not be quiet/reserved — this is a highly collaborative and visible role
• No specific industry experience required

Current & Upcoming Projects

• Mainframe performance optimization
• Security and compliance enhancements
• Upcoming data center move

Top Skills Summary

• Communication
• Change Management
• Native z/OS
• IBM Omegamon
• Db2
• Ticketing systems (Jira preferred)
• Mainframe + storage administration (Hitachi SAM, Data Domain)