L3 Network Security Engineer

The L3 Network Security Engineer at DXC Technology is responsible for managing complex network security technologies and supporting incident resolution. Key responsibilities include advanced support and escalation management, overseeing configuration, optimization, and maintenance of various security solutions, leading incident response and reporting, providing technical leadership and mentorship, and collaborating with network, IT, and security teams to design robust security architectures.

Key Responsibilities:

• Advanced Support & Escalation Management: Serve as the final escalation point for complex incidents; conduct comprehensive troubleshooting and root cause analysis; implement corrective actions and enhancements.
• Configuration, Optimization & Maintenance: Oversee the configuration, tuning, and maintenance of various security solutions including SSL Inspection, VPN, Web Proxy, Firewall, DDoS Protection, Advanced Threat Protection, Intrusion Prevention, and Email Security. 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 with network, IT, and security teams to design and implement robust security architectures. Recommend and implement technology upgrades and process improvements to strengthen 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.
• 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.

At DXC Technology, we prioritize in-person collaboration while offering flexibility to support well-being, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.