Gabriel Stancu

Network and Security Engineer with 15+ years of experience designing, implementing, and managing critical infrastructure in Enterprise and ISP environments. PCNSA-certified and deeply proficient in Palo Alto Networks NGFW and Cisco technologies. Currently operating as an independent consultant (PFA), delivering high-level firewall architecture, security policy design, and infrastructure strategy for global clients.

Palo Alto NGFW — end-to-end lifecycle (design, deploy, App-ID, User-ID, Content-ID)
Firewall management — security/NAT policies, Threat Prevention, WildFire, GlobalProtect VPN
Routing & Switching — BGP, OSPF, HSRP, VLANs, EtherChannel, STP (Cisco & HP)
Security architecture — NAC, IPsec VPN, zero-trust, compliance-aligned policy
Infrastructure design — VLANs, STP, VTP, QoS, DHCP, SNMP, LAN port-security
Network monitoring — SolarWinds, Zabbix, PRTG, ManageEngine