Senior Mainframe System Administrator
1 day ago
Job Title: Senior Mainframe System Administrator
Location: Manila
Salary: Negotiable
About the Role
We are seeking an experienced Senior Mainframe System Administrator to manage and optimize enterprise-level mainframe systems, ensuring high availability, performance, and security. This role involves working with IBM z/OS, AS400 (IBM iSeries), and related mainframe technologies. You will play a key role in maintaining system stability, implementing best practices, and supporting modernization initiatives.
Key Responsibilities
- Administer and maintain IBM z/OS and AS400 systems.
- Perform system monitoring, capacity planning, and performance tuning.
- Manage system backups, disaster recovery, and security compliance.
- Coordinate with application and network teams for troubleshooting.
- Apply system patches, software upgrades, and manage user access.
- Provide incident management, root cause analysis, and documentation.
- Support after-hours maintenance and on-call rotations.
- Lead and mentor team members to enhance mainframe skills and performance.
Qualifications & Skills
- Bachelor's degree in Computer Science, Information Systems, or related field.
- Minimum 5 years of experience in mainframe system administration.
- Strong knowledge of IBM z/OS, AS400 / IBM iSeries, CICS, VSAM, and ITIL processes.
- Experience with system monitoring, job scheduling, and change management.
- IBM Certified System Administrator – z/OS or AS400
- Experience with mainframe modernization or virtualization
- Familiarity with Control-M, CA-7, or similar job scheduling tools
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