Senior System & information Security Admin

Role Overview

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.

Key Responsibilities:

System Administration – Manage and maintain servers %28On-prem/ Azure%29, Active Directory %28Entra ID%29, 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 %28DR%29, and routine MS-SQL Server maintenance

Vendor Coordination – Professional management of external IT and security vendors when required.

Requirements:

· 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 %28M365%29 administration.

· Experience with virtualization – mainly Proxmox

· Deep understanding of cyber security

· English – very high proficiency