Note: The job is a remote job and is open to candidates in USA. InterSources Inc is a global software consultancy providing technology solutions across multiple domains. The Mainframe System Administrator will administer, maintain, and optimize the client's mainframe environment, ensuring the availability, performance, and integrity of mission-critical systems. The role also supports production operations, modernization initiatives, performance optimization, security enhancements, storage integration, and disaster recovery planning.
Responsibilities
- 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
- The administrator supports daily operations as well as project-based activities, such as modernization initiatives or disaster recovery planning
- Primarily production support, with involvement in active projects (optimization, security, data center move, etc.)
- Mainframe performance optimization
- Security and compliance enhancements
- Upcoming data center move
Skills
- 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
- 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
- Jira preferred, but ServiceNow or similar is acceptable
Benefits
- 100% remote work arrangement
- Flexible work hours; standard hours are 8am–5pm PST
- On-call support required
Company Overview
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