Network Security Engineer (Application Security / ADC Engineer)

About the role

A Network Security Engineer with strong hands-on experience in designing, implementing, troubleshooting and supporting enterprise network and security solutions is sought. The role is onsite in Doha, Qatar, on a 6-month outsourced contract, and the candidate must be currently available in Qatar and able to join immediately.

Key responsibilities

• Design, implement, configure and support enterprise network and security solutions.
• Deploy and administer F5 BIG-IP LTM (virtual servers, pools, nodes, iRules, SSL offloading, persistence, health monitors, high availability).
• Configure and manage F5 ASM web application firewall policies, attack signatures, bot defense and threat mitigation.
• Deploy and administer FortiGate firewalls (policies, NAT, VPN, IPS, web filtering, application control).
• Manage FortiADC load balancing, GSLB, SSL offloading and optimization.
• Configure and support FortiWeb WAF, application protection, API protection and bot mitigation.
• Deploy and support Azure security solutions (Azure Firewall, NSG, Application Gateway, WAF, Load Balancer, VNet security).
• Troubleshoot complex network, load balancer, firewall and application delivery issues.
• Monitor performance, availability and security posture, and handle upgrades, patching and backups.
• Coordinate with infrastructure, application, SOC and vendor teams on incidents, changes and escalations.
• Maintain network and security documentation, diagrams and configuration records.

Required profile

• Bachelor's degree in IT, Computer Science, Network Engineering or a related field.
• 5+ years of experience in network security and application delivery with a focus on F5 and Fortinet.
• Currently residing in Qatar with a valid QID, transferable visa or NOC.
• Immediate joining / short-notice availability preferred.

Required skills

• F5 BIG-IP LTM and ASM, FortiGate, FortiADC and FortiWeb.
• Microsoft Azure (Firewall, NSG, Application Gateway, WAF, Load Balancer).
• Strong troubleshooting and network support skills.
• Good understanding of TCP/IP, DNS, DHCP, routing, switching, VPN, SSL/TLS, load balancing and WAF.
• Preferred: F5-CA, F5 LTM/ASM specialist, Fortinet NSE 4/FCP, Fortinet NSE 7 certifications.