Senior Network Security Engineer

Job Summary

Systems Integration Specialist Advisor – Senior Network Security Engineer – Plano, Texas. The role focuses on encryption and decryption optimization of approximately 80 Palo Alto NGFWs, implementing best practices, and collaborating with engineering teams.

• Lead implementation of Palo Alto recommended changes across approximately 80 NGFW firewalls.
• Design, configure, and optimize SSL/TLS encryption and decryption policies.
• Perform firewall rule analysis, policy tuning, and security hardening.
• Collaborate with Cadence engineering teams on architecture, deployment planning, and operational readiness.
• Work alongside Cloudflare and load balancer infrastructure teams to ensure secure and optimized traffic flow.
• Troubleshoot complex networking and security issues involving encrypted traffic inspection.
• Validate firewall performance, stability, and security compliance after implementation changes.
• Develop implementation documentation, operational procedures, and knowledge transfer materials.
• Mentor and support the junior engineer assigned to the project.
• Assist in transition and operational handoff to the designated Client engineer being groomed for long-term ownership.

• 7+ years of hands‑on network security engineering experience.
• Strong expertise with Palo Alto Networks NGFW platforms.
• Deep understanding of SSL/TLS decryption technologies and best practices.
• Experience implementing Palo Alto recommended security architecture and policy changes.
• Hands‑on experience with Palo Alto Panorama, Security policies and NAT, Threat Prevention, URL Filtering, SSL Forward Proxy / Inbound Inspection.
• Experience integrating security controls with Cloudflare environments.
• Strong understanding of load balancer technologies and traffic flow concepts.
• Excellent troubleshooting and analytical skills.
• Strong documentation and communication abilities.

• Palo Alto certifications (PCNSE preferred).
• Experience in large enterprise firewall environments.
• Familiarity with Zero Trust and modern security architectures.
• Experience working in staff augmentation or consulting engagements.

NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For Pay Transparency information, please . If you'd like more information on your EOO rights under the law, please .