Senior System Administrator & Information Security

We are looking for a hands-on Senior System & Information Security Administrator to maintain and support our IT infrastructure and security environment.

In this role, you will be responsible for the day-to-day administration, maintenance, and security of the organization’s IT systems, ensuring system stability, availability, and protection.

• System Administration – Manage and maintain servers (On-prem/ Azure), Active Directory (Entra ID), user accounts, and monitoring systems
• IT Infrastructure & Storage – Maintain networks, hardware, and storage systems to ensure stable and efficient operations
• Technical Support – Provide high-level technical support to end users and resolve infrastructure related issues
• Information Security – Maintain firewalls, endpoint protection, and access control; enforce security policies to ensure system integrity
• Backup & DB Maintenance – Manage backup processes, disaster recovery (DR), and routine MS-SQL Server maintenance
• Vendor Coordination – Professional management of external IT and security vendors when required.

• 7+ years of proven experience as a System Administrator – Mandatory.
• Strong knowledge of Windows Servers, Linux Servers, Networking, and IT infrastructure.
• Experience with Azure and Microsoft 365 (M365) administration.
• Experience with virtualization – mainly Proxmox
• Deep understanding of cyber security
• English – very high proficiency.