Senior Network Security Engineer (L3) - Hybrid Firewalls

NorthBay Solutions LLC; Karachi Division; Hybrid; PKR 2,400,000 - 4,200,000; Full time

Job summary

NorthBay Solutions LLC seeks an experienced L3 Network Security Engineer to support enterprise firewall environments for a UAE-based client. The role demands hands-on expertise in security architecture, incident resolution, and operational support across multi-site networks.

The candidate will design secure network architectures and troubleshoot complex VPN, firewall, and authentication issues while coordinating with UAE-based teams and clients during security projects and migrations.

Qualifications

• 5+ years of professional experience in Network Security or Cybersecurity.
• Hands-on L3-level network security support and troubleshooting.
• Proven experience with enterprise firewall technologies and security infrastructure.
• Experience with security architecture, network design (HLD/LLD) and high-availability.
• Strong understanding of TCP/IP, routing, switching, VPN, DNS and segmentation.
• Experience handling complex security incidents and escalations.
• Experience in enterprise, banking, telecom, government, ISP, or MSS environments is preferred.
• Certifications in Palo Alto, Fortinet, Check Point, Cisco CCNP Security or ITIL Foundation are a plus.

Responsibilities

• Provide L3 technical support for complex network security incidents and escalations.
• Administer, configure, troubleshoot, and optimize enterprise firewall and network security platforms.
• Work with Palo Alto, FortiGate, Check Point and other enterprise firewall technologies.
• Manage and troubleshoot F5 BIG-IP and WAF-related environments.
• Support IPS/IDS and DDoS protection/mitigation activities.
• Manage enterprise proxy and secure internet access solutions (Zscaler/Forcepoint or equal).
• Support MFA, VPN token solutions, and Cisco ISE/NAC, including remote access security.
• Design and review secure network architectures (HLD/LLD), HA, segmentation and controls.
• Perform firewall policy reviews, migrations, and security hardening.
• Coordinate with internal teams and client stakeholders for incident resolution.

Skills

Palo Alto

FortiGate

Check Point

F5 BIG-IP

IPS/IDS

MFA & VPN

Cisco ISE / NAC

HLD/LLD

VPN Solutions

WAF

EDR / DLP

SIEM

ITSM Tools

Tools

Palo Alto

FortiGate

Check Point

Zscaler/Forcepoint

F5 BIG-IP

IPS/IDS

Cisco ISE/NAC

WAF

EDR (Trellix/McAfee)

DLP

Job description

NorthBay Solutions LLC seeks an experienced L3 Network Security Engineer to support enterprise firewall environments for a UAE-based client. The role demands hands-on expertise in security architecture, incident resolution, and operational support across multi-site networks.

The candidate will design secure network architectures and troubleshoot complex VPN, firewall, and authentication issues while coordinating with UAE-based teams and clients during security projects and migrations.