Senior Network & Security Architect (L3 Escalation Lead)

Intertec Systems; Dubai; On-site; AED 360,000 - 720,000; Full time

Job summary

Intertec Systems in Dubai is seeking a highly skilled Technical Specialist Network & Security to design, implement, and optimize complex enterprise architectures. You will act as the technical escalation point (L3), drive solution design, and ensure compliance with ISO 27001, NIST, CIS benchmarks while maintaining high availability.

You will lead deployments across LAN/WAN/DC, SD‑WAN, and multi-site connectivity, configuring F5, Palo Alto, Fortinet, Cisco ISE, and Aruba ClearPass.

Qualifications

• Engineering degree in Computers or Electronics.
• F5, Palo Alto, Fortinet, Cisco ISE, Cisco ASA/Firepower, Aruba ClearPass expertise.

Responsibilities

• Lead the design, architecture, and deployment of network and security solutions across enterprise environments.
• Act as the final escalation point (L3) for complex network and security incidents and problem management.
• Own and drive Root Cause Analysis (RCA) for critical and recurring issues with long-term fixes.
• Provide expert‑level administration, optimization and configuration of F5, Palo Alto, Fortinet, Cisco ASA, Cisco ISE, Cisco Firepower, Wireless and Aruba ClearPass.
• Optimize and configure SD‑WAN, and multi‑site connectivity solutions.
• Perform firewall policy, review, and optimization aligned with security and compliance standards.
• Configure and troubleshoot VPN solutions (IPsec, SSL, site‑to‑site, client‑based).
• Evaluate, recommend, and implement new security technologies and improvements.
• Perform security architecture reviews, risk assessments, and threat mitigation planning.
• Ensure compliance with industry standards (ISO 27001, NIST, CIS benchmarks, etc.).
• Lead vulnerability management programs and coordinate remediation efforts.
• Collaborate with SOC, audit, and risk teams for security incident response and compliance.
• Drive automation and optimization using APIs, scripting, or orchestration tools.
• Raise network/security changes (CAB) with impact analysis.
• Maintain high availability through redundancy design, failover strategies, and DR planning.
• Support large‑scale wireless deployments and secure access for enterprise users.
• Ensure 24/7 service reliability, including participation in on‑call escalation

Skills

Enterprise security architecture

F5/LTM/ASM/GTM

Palo Alto

Fortinet

Cisco ISE

Aruba ClearPass

SD‑WAN

Zero Trust Architecture

Threat prevention

Education

Engineering Degree (Computers / Electronics)

Tools

F5 BIG-IP

Palo Alto Networks

Fortinet FortiGate

Cisco ASA/Firepower

Cisco ISE

Aruba ClearPass

Barracuda WAF

Zscaler / ZTNA

Prisma Access

Ansible

Python

REST APIs

Job description

Intertec Systems in Dubai is seeking a highly skilled Technical Specialist Network & Security to design, implement, and optimize complex enterprise architectures. You will act as the technical escalation point (L3), drive solution design, and ensure compliance with ISO 27001, NIST, CIS benchmarks while maintaining high availability.

You will lead deployments across LAN/WAN/DC, SD‑WAN, and multi-site connectivity, configuring F5, Palo Alto, Fortinet, Cisco ISE, and Aruba ClearPass.