Avance S.A.
|IT Support Specialist
Athens, Attica, Greece
Summary
Led comprehensive IT support and network administration for a national telecommunications provider, ensuring robust system performance and security across multiple sites.
Highlights
Engineered and deployed extensive network infrastructure across Greece, configuring Cisco firewalls, Meraki devices, Site-to-Site VPNs, and VLANs to ensure secure and reliable connectivity for all branch operations.
Administered Microsoft 365 environments, Active Directory, and Bitdefender GravityZone, enhancing system security and managing user access for optimal operational efficiency.
Provided expert Tier 2/3 technical support, diagnosing and resolving complex hardware, software, and network issues for Windows Server and Windows 10/11 systems, minimizing downtime.
Implemented and maintained specialized systems including cloud telephony (Microbase/Mini Client) and IP CCTV (Nvms), improving communication and surveillance capabilities.
Managed physical network infrastructure, including switch configuration, wiring, and rack setups, while also deploying and configuring workstations for new employees.