Senior System Administrator

Metropolitan College and IEK AKMI, members of Alphabet Education, the largest Educational Group in Greece, are seeking a highly skilled Senior System Administrator to join our IT Department. The successful candidate will be responsible for the design, implementation, security, and maintenance of our systems and network infrastructure across all campuses of both academic institutions.

This position includes coordination duties with IT engineers, support teams, and internal stakeholders to ensure smooth daily operations and efficient project execution.

Key Responsibilities:

• Administers, maintains, and optimizes the Group’s network and system infrastructure (LAN/WAN, routing, switching, firewalls, Wi-Fi, virtualization, servers, storage).
• Designs, configures, documents, and supports network and system solutions to ensure performance, reliability, and security.
• Manages and supports telephony enviro...