Perform system administration and maintenance in a heterogeneous environment (production, DR, test) comprising Sun Solaris servers and Linux‑based servers.
Conduct system upgrades and enhancements on IT infrastructure components.
Implement operating system and product‑specific security hardening and patches.
Monitor obsolescence of IT infrastructure components (systems).
Track expiry and perform renewal of system passwords and certificates.
Implement a schedule of system backups and database archive operations to ensure data recoverability and business continuity.
Develop and implement disaster recovery plans for IT infrastructure (systems) and conduct regular disaster recovery testing and component switchover exercises to ensure usability of standby and DR equipment.
Manage the application User Acceptance Test (UAT) and maintain the use of the UAT envi...
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