Perform system administration and maintenance in a heterogeneous environment, including production, disaster recovery (DR), and test environments, comprising Sun Solaris servers and Linux-based servers.
Carry out system upgrades and enhancements on IT infrastructure components to ensure optimal performance and reliability.
Implement operating system and product-specific security hardening measures, as well as apply necessary patches to maintain system security.
Monitor the obsolescence of IT infrastructure components and systems, ensuring timely updates and replacements as needed.
Track the expiry and manage the renewal of system passwords and certificates to maintain system integrity and security.
Establish and implement a schedule for system backups and database archive operations to ensure data recoverability and support business continuity.
Develop and implement disaster recovery plans for...