L3 Network Security Engineer – Network Security Device Management (m / f / d)

L3 Network Security Engineer – Network Security Device Management (m / f / d) Join to apply for the

L3 Network Security Engineer – Network Security Device Management (m / f / d)

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Halian | Managed Services, Recruitment Agency & Contract Staffing

Job Title :

L3 Network Security Engineer – Network Security Device Management

Job Summary The L3 Network Security Engineer is responsible for advanced support, configuration, and management of a wide array of network security technologies, including SSL Inspection (Gigamon), Virtual Private Network (Palo Alto, F5), Web Proxy (ForcePoint), Firewalls (Palo Alto, Cisco, Fortinet), DDoS Protection (Arbor), Advanced Threat Protection (FireEye NX), Intrusion Prevention Systems (Cisco, Trilex), Email Security (Cisco Iron Port, FireEye EX, ForcePoint ESG, Trend Micro Scan-Mail). This role serves as the final escalation point for complex incidents, leads incident response efforts, and provides expert guidance to optimize security and performance across all managed technologies.

Key Responsibilities

Advanced Support & Escalation Management

Act as the final escalation point for complex incidents affecting all network security technologies.

Conduct comprehensive troubleshooting and root cause analysis, implementing corrective actions and enhancements.

Configuration, Optimization & Maintenance

Oversee the configuration, tuning, and maintenance of SSL Inspection, VPN, Web Proxy, Firewall, DDoS, Advanced Threat Protection, Intrusion Prevention, and Email Security solutions.

Develop and enforce best practices and security policies for device configurations.

Incident Response & Reporting

Lead incident response during critical security events and coordinate with relevant teams for rapid resolution.

Prepare detailed post‑incident reports and contribute to continuous improvement initiatives.

Technical Leadership & Mentorship

Mentor L2 engineers and junior staff, providing guidance and developing best practice documentation.

Participate in technology reviews, risk assessments, and security audits.

Collaboration & Strategy

Work closely with network, IT, and security teams to design and implement robust security architectures.

Recommend and implement technology upgrades and process improvements to strengthen the overall security posture.

Required Qualifications

Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or a related field.

Minimum of 7 years of experience in network security engineering with a focus on managing diverse security technologies.

Demonstrated expertise in managing SSL Inspection (Gigamon), VPN (Palo Alto, F5), Web Proxy (ForcePoint), Firewalls (Palo Alto, Cisco, Fortinet), DDoS Protection (Arbor), Advanced Threat Protection (FireEye NX), Intrusion Prevention Systems (Cisco, Trilex), and Email Security (Cisco Iron Port, FireEye EX, ForcePoint ESG, Trend Micro Scan-Mail).

Excellent analytical, problem‑solving, and communication skills.

Desired Skills & Certifications

Advanced certifications such as CISSP, CISM, or equivalent.

Vendor‑specific certifications (e.g., Palo Alto, F5, Cisco, Fortinet, Arbor, FireEye, ForcePoint) are highly desirable.

Experience with ITIL processes, incident management, and change management.

Working Conditions

Full‑time role with standard 9x5 hours and potential on‑call responsibilities.

Fast‑paced, high‑pressure environment with global collaboration.

Occasional extended hours during critical incidents or planned maintenance windows.

Halian Group With over 28 years of experience, we have come to understand that innovation is the only way to provide agile, practical solutions that transform businesses and careers. Our resourcing and smart services help you to realize tomorrow’s potential. Discover the amazing things possible when you bring the right people and the right technologies together. We recognize that diversity, equity, and inclusion (DEI) are essential to building high‑performing teams for our clients.

Location : Riyadh, Saudi Arabia

Seniority level Mid‑Senior level

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