Network Security Engineer (L3)

We are seeking a skilled L3 Network Security Engineer to join a dynamic team supporting a UAE-based client. This full-time role, based in Lahore, Karachi, or Islamabad with a hybrid work model, requires a professional with over five years of experience in network security. The ideal candidate will have extensive hands-on expertise in managing enterprise network security environments, resolving complex security incidents, and implementing robust security architectures. This position involves working closely with advanced firewall technologies, security infrastructure, and providing operational support to ensure the integrity and protection of critical network systems.

Key Responsibilities

- Provide L3 technical support for complex network security incidents, escalations, and service requests.
- 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 security and application delivery environments, including WAF-related technologies.
- Support IPS/IDS and DDoS protection and mitigation activities.
- Manage enterprise proxy and secure internet access solutions such as Zscaler, Forcepoint, or equivalent.
- Support MFA, VPN token solutions, Cisco ISE/NAC, and remote access security environments.
- Design and review secure network architectures, including HLD/LLD, high availability, redundancy, segmentation, and security controls.
- Perform firewall policy reviews, rule implementation, configuration changes, migrations, and security hardening.
- Troubleshoot complex VPN, firewall, authentication, network security, and connectivity issues.
- Support WAF and application security requirements.
- Work with endpoint security technologies including EDR, DLP, Trellix/McAfee, or equivalent solutions.
- Support vulnerability assessment, security posture improvement, and remediation activities.
- Follow ITSM processes for incident, problem, change, and service request management.
- Maintain technical documentation, configuration records, troubleshooting procedures, and knowledge base articles.
- Coordinate with internal teams, vendors, and client stakeholders for incident resolution and security infrastructure changes.
- Participate in security projects, technology upgrades, migrations, and implementation activities.
- Ensure security operations and changes comply with ITIL, security, compliance, and change-management processes.
- Provide technical guidance to L1/L2 teams and support knowledge transfer as needed.

Required Qualifications

- Minimum of 5 years of professional experience in Network Security, Cybersecurity, or Security Operations.
- Strong hands-on experience in L3-level network security support and troubleshooting.
- Proven expertise with enterprise firewall technologies and security infrastructure.
- Experience in security architecture, network design, HLD/LLD documentation, and high-availability environments.
- Solid understanding of TCP/IP, routing, switching, VPN, DNS, network segmentation, and security principles.
- Demonstrated ability to handle complex security incidents and escalations effectively.
- Experience in enterprise, banking, telecom, government, ISP, or managed security environments is preferred.
- Excellent communication and stakeholder management skills.
- Willingness and ability to collaborate with UAE-based client teams and support requirements aligned with UAE business hours.

Preferred Qualifications and Certifications

- Palo Alto PCNSE
- Fortinet NSE / FCP
- Check Point certifications
- Cisco CCNP Security
- ITIL Foundation
- Other relevant cybersecurity or network security certifications

Key Competencies

- Advanced troubleshooting and analytical skills
- Network security architecture and design expertise
- Incident and problem resolution capabilities
- Security operations and infrastructure management
- Change and configuration management proficiency
- Strong documentation and technical reporting skills
- Effective client communication and stakeholder management
- Ability to work independently at L3 level with strong ownership of critical security incidents and escalations

This role offers the opportunity to work in a challenging and fast-paced environment, contributing to the security and resilience of enterprise networks for a prestigious UAE-based client.