Network Security Engineer (L3)

We are seeking a skilled L3 Network Security Engineer to join our team supporting a UAE-based client. This role involves managing and securing enterprise network environments with a focus on advanced troubleshooting, security architecture, incident resolution, and operational support. The ideal candidate will have extensive hands-on experience with network security technologies and will be responsible for handling complex security incidents, optimizing security infrastructure, and implementing robust security solutions across multiple enterprise environments. The position is full-time with a hybrid work mode, based in Lahore, Karachi, or Islamabad, Pakistan.

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 extensively with Palo Alto, FortiGate, Check Point, and other enterprise firewall technologies.
- Manage and troubleshoot F5 security and application delivery environments, including WAF technologies.
- Support IPS/IDS and DDoS protection and mitigation activities.
- Oversee enterprise proxy and secure internet access solutions such as Zscaler, Forcepoint, or equivalents.
- Support MFA, VPN token solutions, Cisco ISE/NAC, and remote access security environments.
- Design and review secure network architectures, including high-level and low-level designs (HLD/LLD), high availability, redundancy, segmentation, and security controls.
- Conduct firewall policy reviews, rule implementations, 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.
- Participate in vulnerability assessments, security posture improvements, and remediation activities.
- Utilize 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.
- Engage in security projects, technology upgrades, migrations, and implementation activities.
- Ensure adherence to ITIL, security, compliance, and change-management processes.
- Provide technical guidance to L1/L2 teams and support knowledge transfer initiatives.

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

Preferred Qualifications and Certifications
- Palo Alto PCNSE certification.
- Fortinet NSE or FCP certifications.
- Check Point certifications.
- Cisco CCNP Security certification.
- ITIL Foundation certification.
- Other relevant cybersecurity or network security certifications.

Key Competencies
- Advanced troubleshooting and analytical skills.
- Expertise in network security architecture and design.
- Strong incident and problem resolution capabilities.
- Proficient in security operations and infrastructure management.
- Experience with change and configuration management.
- Skilled in documentation and technical reporting.
- Effective client communication and stakeholder management.
- Ability to work independently at an L3 level with strong ownership of critical security incidents.

This role offers the opportunity to work in a dynamic environment supporting a high-profile client with cutting-edge security technologies and complex network security challenges.