4-7 years of experience as a System Administrator, System Integrator, Network Engineer or Infrastructure Integrator. Strong hands-on orientation with the ability to work independently in complex technical environments. Ability to understand a full system picture and identify dependencies between infrastructure, networking, security, identity, virtualization and application components. Experience with Windows Server environments, including Active Directory, DNS, DHCP, users, permissions and GPO. Ability to install, configure and troubleshoot Active Directory and Group Policy in operational environments. Knowledge and hands-on experience with virtualization technologies such as VMware and Hyper-V. Excellent understanding of networking, including LAN, WAN, VLANs, routing, switching, NAT, VPN and firewall policies. Strong practical understanding of the OSI 7-layer model and ability to troubleshoot issues by network layers. Experience with FortiGate and/or Check Point firewalls — policy analysis, connectivity troubleshooting, VPN and segmentation. Hands-on experience with networking equipment such as Cisco and Dell. Experience with Storage systems such as NetApp or Dell — advantage. Experience with scripting and automation — Python, PowerShell, Bash or Batch — advantage. Familiarity with SIEM/XDR, NAC, RADIUS or 802.1X environments — advantage. Strong written and verbal communication skills in Hebrew and English. Willingness to travel frequently to customer and company sites — mandatory. Willingness and ability to work in defense-oriented environments and pass security clearance — mandatory. Certifications CCNA — mandatory or equivalent proven hands-on networking knowledge. CCNP — advantage. Microsoft certification such as MCSE / MCITP / equivalent — advantage. Security, firewall, virtualization or infrastructure certifications — advantage.