Senior Network & Security Engineer

S3-KSA; Jeddah; On-site; SAR 201,000 - 357,000; Full time

Job summary

S3-KSA in Jeddah, Saudi Arabia, is seeking a seasoned Network Engineer to design, implement, and maintain enterprise infrastructure. You will manage LAN/WAN/WLAN, VPNs, routers, switches, firewalls, and security systems, while guiding technicians and coordinating with IT, security teams, vendors, and clients.

The role requires 5–8 years of hands-on networking experience, CCNA, and strong TCP/IP knowledge; CCNP and Fortinet/Palo Alto certifications are highly preferred.

Qualifications

• Bachelor’s degree in Network Engineering, Computer Engineering, CS, IT, or related field.
• 5–8 years hands-on experience in enterprise networking and network security.
• CCNA certification or equivalent networking knowledge required.
• CCNP Enterprise or equivalent preferred.
• Fortinet, Palo Alto or equivalent firewall certifications highly preferred.
• Strong experience with Cisco switches/routers and enterprise firewalls.
• Advanced knowledge of TCP/IP, VLANs, OSPF, BGP, DHCP, DNS, NAT.
• Experience with IPSec/SSL VPN and site-to-site VPN.
• Experience with network security, ACLs, and firewall policies.
• Excellent troubleshooting and packet analysis skills.
• Experience with Wireshark and network monitoring tools (PRTG/SolarWinds/Zabbix).
• Good understanding of fiber, PoE, and structured cabling.
• Experience with CCTV/VMS and IP-based security networks is highly preferred.
• Ability to prepare network diagrams, IP addressing plans, and documentation.
• Good English communication and technical reporting skills.

Responsibilities

• Design, implement, configure, manage, and maintain enterprise network infrastructure (LAN/WAN/WLAN).
• Manage VPNs, routers, switches, firewalls, and network security systems.
• Provide advanced technical support and troubleshooting for complex network issues.
• Design and support network infrastructure for IT and physical security systems (CCTV, IP cameras, VMS, access control).
• Coordinate with IT, security teams, vendors, and clients; handover projects and document work.
• Provide technical guidance to technicians and junior engineers; participate in upgrades and expansions.

Skills

TCP/IP knowledge

Wireshark

Network troubleshooting

English communication

Documentation

Education

Bachelor's degree in Networking or related field

Tools

Cisco IOS

Firewalls (Fortinet / Palo Alto)

VPN technologies

PRTG / SolarWinds / Zabbix

VMS/IP-based access control integration

Job description

Jeddah, Saudi Arabia | Posted on 09/13/2026

Design, implement, configure, manage, and maintain secure and highly available enterprise network infrastructure, including LAN, WAN, WLAN, VPN, routers, switches, firewalls, and network security systems. Provide advanced technical support and troubleshooting for complex network and security issues. Design and support network infrastructure for IT and physical security systems, including CCTV, IP Cameras, VMS, and Access Control. Handle network design, configuration, monitoring, troubleshooting, security, site surveys, testing, commissioning, project handover, documentation, and coordination with IT, security systems, project teams, vendors, and clients. Provide technical guidance to network technicians and junior engineers and participate in network upgrades and infrastructure expansion projects.

Requirements

• Bachelor’s degree in Network Engineering, Computer Engineering, Computer Science, Information Technology, or a related field.
  
• 5–8 years of hands-on experience in enterprise networking and network security.
  
• CCNA certification or equivalent networking knowledge is required.
  
• CCNP Enterprise or equivalent professional-level certification is preferred.
  
• Fortinet, Palo Alto, or equivalent firewall/security certification is highly preferred.
  
• Strong experience with Cisco switches and routers or equivalent enterprise networking products.
  
• Strong hands-on experience with enterprise firewalls.
  
• Advanced knowledge of TCP/IP, Subnetting, VLANs, STP, DHCP, DNS, NAT, OSPF, and BGP.
  
• Strong experience with IPSec VPN, SSL VPN, and Site-to-Site VPN.
  
• Experience with network security, segmentation, ACLs, and firewall policies.
  
• Strong troubleshooting and packet analysis skills.
  
• Practical experience with Wireshark and network monitoring tools such as PRTG, SolarWinds, or Zabbix.
  
• Good understanding of fiber-optic networks, SFP/SFP+, PoE, and structured cabling.
  
• Experience with CCTV/VMS and IP-based physical security networks is highly preferred.
  
• Ability to prepare network diagrams, IP addressing plans, VLAN matrices, and technical documentation.
  
• Good English communication and technical reporting skills.