Paul Landry Ngango

Fortinet Nse Sme Lead @Transaction Network Services (TNS)

Houston, TX, US

Designed and documented High-Level Designs (HLDs) and Low-Level Designs (LLDs) for firewall upgrades, VPN migrations, and segmentation architecture.• Served as Subject Matter Expert (SME) in cross-functional meetings with stakeholders to align network security designs with business requirements and compliance mandates.• Created and maintained detailed network and security diagrams for existing and new infrastructure using Visio and Lucidchart.• Architected IPsec VPN tunnels and HA configurations with built-in failover, supporting business continuity goals.• Conducted pre-upgrade assessments to identify potential compatibility issues and mitigate risks before deploying new firmware versions.• Engaged in strategic planning sessions for future SD-WAN expansion and ZTNA integration.• Migrated upgraded firewalls to a new ADOM in FortiManager, ensuring proper grouping and centralized management.• Imported firewalls into FortiManager, synchronized configurations, and pushed policy packages to enforce consistent security rules across devices.• Utilized Splunk for log analysis and event correlation, identifying anomalies, failed upgrades, and security events post-deployment.• Created custom Splunk dashboards and queries to monitor firewall logs, detect upgrade-related issues, and validate system performance.• Implemented rollback procedures and executed contingency plans in case of failed upgrades, minimizing operational disruptions.• Analyzed FortiGate system logs, debug outputs, and Splunk alerts to identify root causes of post-upgrade issues and apply corrective actions.• Led VPN migration efforts, ensuring successful cutovers while maintaining secure remote access for users and third-party integrations.

University of Buea

Management Science