Network & Security Engineer - L2+

Gerab System Solutions LLC; Dubai; Presencial; AED 240.000 - 320.000; Jornada completa

Descripción de la vacante

Gerab System Solutions LLC in Dubai is seeking a skilled Network Security Engineer L2 to implement, configure, maintain and troubleshoot enterprise networking, wireless, firewall and NAC solutions for multiple customers.

The ideal candidate has 5–10 years hands-on experience with Cisco/Aruba switching, Palo Alto/FortiGate/Sophos firewalls, ISE/ClearPass NAC, VPNs, and routing. You will lead projects, provide RCA, and coordinate with vendors to ensure timely delivery and high service levels.

Formación

• 5–10 years hands-on experience in enterprise networking and security.
• Strong knowledge of Cisco/Aruba switching, routing and wireless.
• Experience with Palo Alto, FortiGate or Sophos firewalls and NAC solutions.
• Familiarity with Cisco ISE or Aruba ClearPass NAC and VPN technologies.

Responsabilidades

• Implement, configure, maintain and troubleshoot enterprise networking, wireless, firewall and NAC solutions.
• Lead network installations, migrations, upgrades, and post‑implementation testing.
• Perform RCA, handle L2/L3 escalations and coordinate with vendors for issue resolution.
• Prepare technical documentation, network diagrams and implementation reports.

Conocimientos

Network security

L2 support

Firewall

NAC

Cisco switching

Aruba switching

Routing

Wireless

VPN

Troubleshooting

RCA

Vendor coordination

Documentation

Herramientas

Cisco IOS

ArubaOS

Palo Alto

FortiGate

Sophos

Cisco ISE

Aruba ClearPass

Descripción del empleo

Gerab System Solutions is looking for a skilled and hands‑on Network Security Engineer L2 with experience in implementing, configuring, maintaining and troubleshooting enterprise networking wireless firewall and NAC solutions. Implement, configure, maintain and troubleshoot enterprise network infrastructure including Cisco and Aruba switching, routing and wireless solutions. Perform network installations, migrations, upgrades, configuration changes, commissioning and post‑implementation testing. Implement and troubleshoot next‑generation firewalls including Palo Alto Networks, FortiGate and Sophos. Configure and troubleshoot firewall policies, NAT site‑to‑site IPsec VPNs, remote‑access VPNs, routing and security profiles. Deploy, configure and troubleshoot Network Access Control NAC solutions including Cisco ISE and Aruba ClearPass. Troubleshoot complex network connectivity, routing, wireless performance, authentication and firewall‑related issues. Handle L2 L3 technical escalations, perform root cause analysis (RCA) and coordinate with vendors to resolve complex technical issues. Execute implementation activities according to approved designs, Method of Procedure (MOP), change management processes and project requirements. Manage multiple customers, project implementations, AMC activities and technical assignments simultaneously while meeting agreed timelines and service‑level commitments. Coordinate effectively with customers, project managers, internal technical teams, sales teams and vendors to ensure smooth project execution and timely issue resolution. Communicate technical issues, project progress, implementation requirements, dependencies and potential delays clearly and proactively to relevant stakeholders. Maintain professional customer relationships, manage expectations, address technical concerns and handle escalations effectively. Perform preventive maintenance, configuration backups, infrastructure health checks and firmware upgrades as required. Prepare and maintain technical documentation, network diagrams, implementation reports, configuration records and troubleshooting RCA reports. Provide technical guidance to L1 engineers and other team members when required. Take ownership of assigned activities from initial planning and implementation through troubleshooting, customer acceptance and successful handover.

Minimum 5 to 10 years of hands‑on experience in enterprise networking and network security, preferably within a system integration. Practical knowledge of Cisco and/or Aruba switching, routing, and enterprise wireless technologies. Hands‑on implementation and troubleshooting experience with at least two firewall platforms: Palo Alto, FortiGate, or Sophos. Practical experience implementing or troubleshooting Cisco ISE or Aruba ClearPass NAC solutions. Understanding of TCP/IP, VLANs, subnetting, routing protocols, VPN technologies, network segmentation, and authentication services. Experience with network migrations, security policy implementation, firmware upgrades, and troubleshooting in live production environments. Ability to analyze network logs, packet captures, firewall sessions, and device outputs to identify and resolve technical issues. Additional hands‑on experience with cybersecurity products such as SIEM, EDR/XDR, WAF, endpoint security, or other security platforms will be an advantage. Excellent verbal and written communication skills, customer‑handling abilities, and the ability to manage multiple priorities effectively. Time management, organizational, analytical, and problem‑solving skills, with the ability to work independently and coordinate effectively with cross‑functional teams. Relevant vendor certifications such as CCNP Enterprise, Aruba, Palo Alto, or Fortinet certifications will be preferred. The ideal candidate is a practical, customer‑focused engineer who can independently execute network and security implementations, troubleshoot complex technical issues, and take ownership of assigned tasks. Experience supporting multiple enterprise customers across project delivery and AMC environments will be highly valued.