Senior Enterprise Security Architect — Networking & Firewalls

AE01 Dimension Data Middle East LLC; Abu Dhabi; Hybrid; AED 480,000 - 720,000; Full time

Job summary

NTT DATA in the United Arab Emirates is seeking a Technical Security Specialist to design, implement, and support enterprise networking and security solutions. You will work across Cisco, Palo Alto, Fortinet and F5 technologies, lead deployments, and engage clients onsite and remotely.

The role requires advanced hands‑on skills, leadership, and the ability to mentor engineers while delivering designs, migrations and governance aligned with customer needs.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Electronics, Telecommunications or related field.
• Mandatory: At least one professional-level certification from a major technology vendor.
• CCNP/CCIE or equivalent certifications are preferred.
• 7–10+ years of hands-on experience in enterprise networking and network security.

Responsibilities

• Design, implement, configure and support enterprise network and security solutions across Cisco, Palo Alto, Fortinet and F5 technologies.
• Lead installations, migrations, upgrades and lifecycle management for LAN, WAN, SD‑WAN, data centre, internet edge and security infrastructure.
• Configure and troubleshoot Cisco routing and switching, ACI and SD‑WAN; Palo Alto and Fortinet firewalls; and F5 BIG‑IP LTM/GTM/ASM/WAF.
• Collaborate with clients onsite and remotely to gather requirements and resolve technical issues.
• Perform firewall policy reviews, security hardening, VPN and NAT configuration, health checks and capacity planning.
• Investigate and resolve critical network, security and application delivery incidents, coordinating vendor escalations.
• Produce high‑level and low‑level designs, implementation and migration plans, and operational documentation.
• Support high‑availability and disaster recovery designs, ensuring solutions meet security and governance requirements.
• Mentor junior engineers and contribute to technical workshops and presales discussions.

Skills

TCP/IP knowledge

Routing & Switching

Firewall expertise

VLAN/SD-WAN

Customer engagement

Education

Bachelor’s degree in IT / related field

Tools

Cisco equipment

Palo Alto

Fortinet

F5 BIG-IP

ACI

Job description

NTT DATA in the United Arab Emirates is seeking a Technical Security Specialist to design, implement, and support enterprise networking and security solutions. You will work across Cisco, Palo Alto, Fortinet and F5 technologies, lead deployments, and engage clients onsite and remotely.

The role requires advanced hands‑on skills, leadership, and the ability to mentor engineers while delivering designs, migrations and governance aligned with customer needs.