Senior IT Infrastructure & Firewall Security Lead

STM Consulting Inc; United Arab Emirates; On-site; AED 420,000 - 660,000; Full time

Job summary

STM Consulting Inc. in Dubai, United Arab Emirates, seeks an experienced IT Infrastructure Manager to lead enterprise infrastructure operations and service delivery.

You will oversee core and perimeter firewalls, network engineering, and security programs to ensure high availability and robust threat prevention. The role requires 5–10 years hands‑on IT infrastructure, plus 3–5 years in a team leadership capacity.

Qualifications

• 5–10 years of hands‑on IT Infrastructure experience.
• 3–5 years in a Team Lead or Manager role.
• Mandatory Level 3 hands‑on expertise with enterprise core and perimeter firewalls.
• Experience with Palo Alto PA-3250, Fortinet 710G, or equivalent NGFW platforms.
• Strong experience with firewall policies, NAT, VPNs, routing, HA, threat prevention, and incident response.
• Strong experience in firewall log analysis, optimization, and upgrades.
• Hands‑on experience with enterprise LAN/WAN.
• Strong knowledge of TCP/IP, DNS, DHCP, OSPF, and BGP.
• Experience with enterprise switching, servers, storage, cloud, and wireless infrastructure.
• Strong security expertise covering ACLs, network segmentation, IDS/IPS, access controls, and endpoint security.
• Knowledge of backup, disaster recovery, and Zero Trust controls.
• Proven experience in infrastructure operations and IT service delivery.
• Experience with ITSM, SLA/OLA management, escalations, and performance monitoring.
• Proven experience leading infrastructure and support engineers.
• Strong leadership, communication, troubleshooting, and problem‑solving skills.

Responsibilities

• Lead enterprise IT infrastructure operations and service delivery.
• Manage and support enterprise core and perimeter firewall environments.
• Configure and troubleshoot firewall policies, NAT, VPNs, routing, and HA.
• Manage threat prevention, log analysis, optimization, upgrades, and incident response.
• Work with Palo Alto PA-3250, Fortinet 710G, or equivalent NGFW platforms.
• Manage enterprise LAN/WAN infrastructure.
• Support TCP/IP, DNS, DHCP, OSPF, and BGP environments.
• Manage switching, servers, storage, cloud, and wireless infrastructure.
• Implement and maintain ACLs, network segmentation, IDS/IPS, and access controls.
• Support endpoint security, backup, disaster recovery, and Zero Trust controls.
• Lead infrastructure operations and service delivery activities.
• Manage ITSM processes and SLA/OLA requirements.
• Handle technical escalations and infrastructure incidents.
• Monitor infrastructure capacity, performance, availability, and reliability.
• Lead infrastructure projects and improvement initiatives.
• Manage and mentor infrastructure and support engineers.
• Ensure infrastructure services meet operational and business requirements.

Skills

IT Infrastructure

Team Leadership

Networking

Security Awareness

Troubleshooting

Tools

Palo Alto PA-3250

Fortinet 710G

NGFW platforms

VPNs

NAT

DNS/DHCP

LAN/WAN

Job description

STM Consulting Inc. in Dubai, United Arab Emirates, seeks an experienced IT Infrastructure Manager to lead enterprise infrastructure operations and service delivery.

You will oversee core and perimeter firewalls, network engineering, and security programs to ensure high availability and robust threat prevention. The role requires 5–10 years hands‑on IT infrastructure, plus 3–5 years in a team leadership capacity.