Job Summary: We are seeking a Systems Administrator with experience in Windows, Linux, and virtualization environments to manage complex infrastructures and ensure operational continuity. Key Highlights: 1. Stable project in an advanced technological environment 2. Professional development in system administration and security 3. Positive work atmosphere and team collaboration We are looking for a Systems Administrator with solid experience in Windows, Linux, and virtualization environments, capable of managing complex infrastructures and ensuring the operational continuity of our systems. Responsibilities * Installation, configuration, and administration of Microsoft Windows Server 2016 and 2019 servers in physical and virtual environments. * Deployment and administration of PCs running Windows 11\. * User and group management in Active Directory; creation and administration of Group Policy Objects (GPOs). * Configuration and administration of shared resources, WSUS, DNS, DHCP, and IPAM services. * Installation and administration of Linux servers (RedHat and CentOS). * Administration of VMware and Citrix (VDI) virtualization environments. * Monitoring and administration of Backup and Restore solutions, including cloud backup restoration using Druva. * Administration and support of Lotus Notes environments. * Secure file sharing management via Citrix ShareFile. * Administration of PBX systems and IP telephony via Cisco Unified CM Administration. * Configuration and administration of network connectivity and remote access solutions in Windows and Linux environments. * Network troubleshooting and advanced technical support. Requirements * Higher Vocational Training Certificate in Networked Computer Systems Administration (ASIR) or equivalent higher education qualification. * 4 years of experience in administering Windows and Linux servers, Active Directory, GPOs, virtualization, and network solutions. * 2 years of experience in administering Lotus Notes, Citrix ShareFile, cloud backups, and IP telephony. * Solid knowledge of Microsoft operating systems, Azure, Linux/Unix, virtualization (VMware/Citrix), and TCP/IP networking. **Valued Certifications:** * MCSA: Windows Server 2016 * Microsoft 365 Certified: Security Administrator Associate * Microsoft Certified: Information Protection Administrator Associate * Citrix Certified Associate – Virtualization * VMware Certified Professional (VCP) Benefits * Stable project in an advanced technological environment. * Professional development in system administration, virtualization, and security. * Positive work atmosphere and team collaboration. Join Seidor Gesein as a Systems Administrator and become part of a technology and innovation leadership team! Develop your career with us in a dynamic and professional environment!