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