Senior Network Design & Implementation Engineer📣 Job Ad

About the Role

ITBuilders is seeking a Senior Network Design & Implementation Engineer to join their team in Riyadh. This full-time position is responsible for architecting, designing, deploying, and testing enterprise network, edge security, and SD-WAN solutions, primarily focused on the Fortinet Security Fabric. The role requires advanced knowledge and experience in FortiGate Secure SD-WAN, next-generation firewalling (NGFW), zero-trust architecture, and cloud connectivity.

Key Responsibilities

• Convert complex enterprise connectivity and compliance requirements into validated Low-Level Designs (LLDs), automated configuration templates, structured migration cutover plans, and seamless operational handoffs.
• Architect scalable FortiGate Secure SD-WAN topologies across multi-region environments, including Hub-and-Spoke, Full Mesh, and Dynamic Mesh VPN (ADVPN) structures with automated BGP routing.
• Design SD-WAN rules, Performance SLAs, link health monitoring probes, and application control steering policies using Dynamic Application Steering.
• Build comprehensive edge and core security layouts incorporating FortiGate NGFWs, FortiManager, FortiAnalyzer, FortiSwitch, and FortiAP (FortiLAN Cloud/Fabric extensions).
• Standardize complex BGP (iBGP/eBGP), OSPF, VRF, NAT, and IPsec tunnel architectures integrating SD-WAN overlays with existing enterprise data centers, core switching backbones, and legacy WANs.
• Develop complete High-Level Designs (HLDs), Low-Level Designs (LLDs), IP/VLAN schemes, network topology diagrams, and Bill of Materials (BOMs).
• Configure, stage, and deploy physical and virtual FortiGate appliances utilizing FortiManager for centralized policy management, device mapping, and revision tracking.
• Author detailed Method of Procedure (MOP) documents, cutover playbooks, rollback strategies, and maintenance window schedules for migrating legacy firewalls and WAN circuits to Fortinet Secure SD-WAN.
• Implement secure cloud edge connectivity, deploying virtual FortiGate instances (FortiGate-VM) in Azure using Cloud On-Ramp methodologies and Transit Gateways.
• Configure FortiSwitch and FortiAP deployments using FortiLink to deliver unified, single-pane-of-glass management through FortiGate controllers.
• Build and maintain standardized CLI scripts, FortiManager Meta-Fields, Normalized Interfaces, and Jinja2 templates to enable zero-touch provisioning (ZTP) for global site rollouts.
• Automate policy pushes, object creation, and compliance checks using Python, Ansible, or Terraform (FortiOS/FortiManager providers).

Experience and Qualifications

Candidates should possess 5-10 years of experience in network design and implementation, with a strong focus on Fortinet solutions.

Required Skills

• Secure SD-WAN Design
• SLA & Steering Profiles
• Fortinet Security Fabric Integration
• Underlay & Overlay Integration
• Design Documentation
• Deployment Engineering
• Migration Execution
• Hybrid & Multi-Cloud Connectivity
• LAN/WLAN Integration
• Template Standardization
• Infrastructure as Code (IaC)

Work Environment

This is a full-time position based in Riyadh, offering an opportunity to work with advanced network security technologies.