Hatem Saied

Context:

Senior Network & Security Engineer within a team of 14 engineers responsible for the deployment, operation, and transformation of critical network infrastructures.

Main Achievements:

• N2/N3 Support for multi-vendor network and security environments (Cisco, Fortinet, F5, Stormshield, ASA)

• Execution of major migrations and upgrades (Stormshield to Fortigate, F5 upgrades, Fortinet)

• Redesign of multi-site WAN / MAN architectures (La Défense, Osny, Saint-Denis)

• Advanced analysis and optimization of BGP / OSPF routing in critical environments

• Operation of Forcepoint NGFW firewalls used as routers (L3)

• Analysis of inter-site traffic and network mapping (As-Is / To-Be)

• Deployment of IPsec / SSL VPNs and SD-WAN solutions

• Implementation and management of high availability (HA, failover, MPLS backup)

• Advanced network troubleshooting (routing table analysis, complex incidents)

• Production of technical documentation (HLD, LLD, MOP, procedures)

• Execution of security audits and architecture recommendations

• Improvement of WAN infrastructure performance and resilience

Technical Environment:

Cisco, Fortinet (FortiManager / FortiAnalyzer), Forcepoint NGFW, F5 BIG-IP, ASA 5520,

BGP, OSPF, SD-WAN, IPsec/SSL VPN, Wireshark, tcpdump, Cacti, Zabbix, ESXi

Network & Security Engineer Data Center (RUN) within a telecom operator environment, in a team of 15 engineers responsible for the operation and evolution of critical infrastructures.

• N2/N3 Support for critical Data Center infrastructures (networks & security)

• Support for IP infrastructure migrations and upgrades

• Participation in transitions to Cisco ACI architectures (SDN fabric)

• Execution of upgrades on Nexus 7K / 9K equipment, APIC, and F5 BIG-IP / VIPRION platforms

• Management of traffic routing on firewalls (Fortigate, Stormshield)

• Contribution to SD-WAN projects and network architecture evolution

• Traffic analysis, advanced troubleshooting, and critical incident resolution

• Change management and project tracking via Jira

Cisco Nexus (9K / 7K / 5K / 2K), Catalyst 6500, Cisco ACI / APIC,

Fortinet (Fortigate, FortiManager, FortiAnalyzer), ASA 5520, Stormshield,

F5 BIG-IP / VIPRION, SD-WAN, Wireshark, tcpdump, Cacti, Zabbix, Jira

Network & Security Engineer within an insurance environment, responsible for the operation and evolution of network and security infrastructures.

• N2/N3 Support for critical network and security infrastructures

• Administration and configuration of multi-vendor firewalls (Check Point R80.x, Fortinet, Palo Alto, Cisco ASA, FSWM)

• Management of traffic routing for partners and business applications

• Implementation and operation of VPNs (IPsec, SSL) on Cisco and firewalls

• Migration of firewall environments to new NGFW generations (Cisco Firepower, Fortinet, Palo Alto, Check Point)

• Migration and integration of applications to Microsoft Azure cloud (traffic routing, security)

• Traffic analysis and advanced troubleshooting (Wireshark, tcpdump)

• Contribution to the evolution of network and security architectures

Cisco Nexus (9K / 7K / 5K / 2K), Catalyst (6500, 4500, 3500, 2960),

Check Point R80.x, Fortinet, Palo Alto, Cisco ASA 5520, FSWM, Firepower,

Azure, WiFi, Data Center,

Monitoring: Nagios, Cacti

Tools: Wireshark, tcpdump