Senior Network & Firewall Engineer (L3)

Job Title: Senior Network & Firewall Engineer (L3) Location: Dubai Experience 10+ years of hands-on experience in enterprise networking, security, deployment, migration, and troubleshooting. Cisco CCIE Enterprise must Job Summary We are seeking an experienced L3 Network & Firewall Engineer responsible for designing, deploying, migrating, optimizing, and supporting enterprise network and security infrastructures. The ideal candidate should possess deep expertise in Cisco, Fortinet, Palo Alto, Huawei, and multi-vendor networking environments. The role requires leading complex implementation and migration projects while providing Level-3 technical support for mission-critical environments. Key Responsibilities • Design, implement, and maintain enterprise LAN, WAN, Data Center, and Campus network infrastructures. • Deploy, configure, and troubleshoot Cisco, Huawei, Fortinet, and Palo Alto network and security solutions. • Lead network transformation, refresh, migration, and greenfield deployment projects. • Perform firewall policy creation, NAT configuration, VPN implementation, routing, and security hardening. • Plan and execute network migration activities with minimal downtime. • Configure and troubleshoot dynamic routing protocols including OSPF, BGP, EIGRP, and static routing. • Implement high-availability solutions for firewalls and core network infrastructure. • Manage Layer 2 and Layer 3 switching technologies including VLANs, STP, EtherChannel/LACP, VRRP/HSRP, and MLAG where applicable. • Support SD-WAN, IPSec VPN, SSL VPN, Remote Access VPN, and site-to-site connectivity. • Perform network performance analysis, capacity planning, and root cause analysis for complex incidents. • Lead technical discussions with customers, vendors, and internal project teams. • Create High-Level Design (HLD), Low-Level Design (LLD), Method of Procedure (MOP), rollback plans, and as-built documentation. • Provide L3 operational support and mentor junior network engineers. • Ensure network security compliance and adherence to organizational standards and best practices. Required Technical Skills Networking • Cisco Routing & Switching • Huawei Enterprise Switching • Cisco Catalyst & Nexus platforms • VLANs, STP, RSTP, MSTP • OSPF, BGP, EIGRP • VRRP, HSRP • MPLS • QoS • Multicast • DHCP, DNS • IPv4 & IPv6 • Network monitoring and troubleshooting Firewalls & Security • Cisco Firepower • Fortinet FortiGate • Palo Alto Networks Firewalls • Security Policies • NAT • IPS/IDS • Application Control • URL Filtering • SSL Inspection • IPSec VPN • SSL VPN • High Availability (HA) • Security hardening and best practices Deployment & Migration • Enterprise network migration • Firewall migration (Cisco, Fortinet, Palo Alto) • Data Center migration • Branch rollout • Network refresh projects • Change management • Cutover planning • Rollback planning • Zero/Minimal downtime migrations Preferred Certifications • Cisco CCIE Enterprise must • Fortinet NSE 4/5/7 or Fortinet Certified Professional/Expert • Palo Alto PCNSE • Huawei HCIP/HCIE • ITIL Foundation (preferred) Soft Skills • Excellent troubleshooting and analytical skills • Strong customer-facing communication • Ability to work under pressure during critical migrations • Technical leadership and mentoring capabilities • Strong documentation and presentation skills • Ability to manage multiple projects simultaneously Preferred Experience • Enterprise Data Centers • Banking • Government • Healthcare • Telecom • Large Campus Networks • Managed Services • Cloud connectivity (AWS, Azure, OCI) • Hybrid network environments Employment Level Senior Engineer (L3) Reporting To: Network & Security Practice Manager / Infrastructure Manager