Senior Network Security Engineer - F5 / Firewall

Intertec Softwares Pvt Ltd; Dubai; On-site; AED 120,000 - 200,000; Full time

Job summary

A leading IT solutions provider in Dubai is seeking an experienced network engineer to manage and implement network upgrades and configurations. The role requires strong expertise in firewall management, network architecture, and disaster recovery planning. Ideal candidates will have hands-on experience with Cisco, Palo Alto, and FortiGate technologies. This position offers a dynamic work environment and opportunities for professional growth in the networking field.

Responsibilities

• Engage in planning, scheduling, and implementing network upgrades for clients.
• Develop and implement network architecture and design.
• Configure and manage three-tier network architecture.
• Manage Palo Alto and FortiGate Firewalls effectively.
• Maintain disaster recovery plans for IT operations.

Skills

Network architecture

Cisco configuration

Firewall management

VPN configuration

Disaster recovery planning

Load Balancer management

Tools

Palo Alto Firewall

FortiGate Firewall

Cisco Wireless Controllers

Infoblox

F5 BIG IP LTM

F5 GTM

F5 APM

Job description

RESPONSIBILITIES

1. Engage in planning, scheduling, and implementing network upgrades, implementations, and migrations for clients in a timely manner and during times that will have the least impact on the users of the affected systems.
2. Comprehensive knowledge of developing and implementing the architecture and design of networks and network drawings.
3. Configuring and managing three-tier network architecture, which includes core switches, distribution switches, and access switches, leased lines, and MPLS links with high availability.
4. Palo Alto Firewall with active and passive modes and configuring security policies, QOS, NAT, sub interfaces, aggregated interfaces, and virtual routers and zones.
5. FortiGate perimeter firewall with master / slave configuration, VDOM, IPsec VPN, SSL VPN with vendor-specific IP subnet, user integration with AD via LDAP, NAT configuration, and traffic shaping.
6. Deployment and management of Cisco Wireless Controllers 9800 with Active / Standby, all SSID integrated with ISE for 802.1X, and vendor-specific access.
7. Infoblox: Configuration and Managing DNS and DHCP pool.
8. Cisco IPS: Configuration and Managing.
9. F5 LTM: Configuration, solution designing, and managing the F5 BIG IP LTM Load Balancer. Creating VIPs, creating pools, and associating pools with VIPs. The creation of Persistence Profile, SSL Profile, SSL offloading, and iRules is intended to be a high‑availability solution with network failover.
10. F5 GTM: configuring and managing the F5 GTM devices for the DNS solution for the external and internal websites, which is syncing between DC and DR.
11. F5 APM: Creating the managing access policy in APM for VPN based traffic.
12. Prepare and maintain disaster recovery plans for IT operations and participate in the organizational and customer level disaster recovery testing.