Senior System & Information Security Administrator
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Job Description
Senior administrator owning global servers, networks, security, backups, and end-user support. Coordinating external IT providers for a Bulgaria-based company.
Responsibilities:
- Manage and maintain servers (On-prem/Azure), Active Directory, Entra ID, user accounts, and monitoring systems.
- Maintain networks, hardware, and storage systems to ensure stable and efficient operations.
- Provide high-level technical support to end users and resolve infrastructure-related issues.
- Maintain firewalls, endpoint protection, and access control; enforce security policies to ensure system integrity.
- Manage backup processes, disaster recovery (DR), and routine MS-SQL Server maintenance.
- Professionally manage external IT and security vendors when required.
- Take full ownership of the company's global IT infrastructure and security environment.
- Coordinate external IT providers and vendors.
Requirements:
- 7+ years of recent hands-on System Administration experience, with the ability to independently manage a broad IT environment end-to-end.
- Strong and current hands-on experience with Active Directory, including DCs, GPO, DNS, Replication, troubleshooting, and AD security/hardening.
- Strong hands-on experience with Windows and Linux servers in production environments, networking, virtualization (mainly Proxmox), backup and DR.
- Experience with Microsoft 365, Entra ID, hybrid environments, and endpoint/MDM management.
- Strong practical experience in information security, including firewalls, endpoint security, and access control.
- Hebrew – high proficiency; English – very high proficiency.
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