Walid Ben bella

– Redesigned firewall policies for VLAN routing in multiple Data Centers, enhancing security and performance. – Deployed 8,000+ network devices across France, ensuring seamless integration and minimal downtime. – Secured traffic flows for over 800 sites using clustered Fortinet firewalls, managed via FortiManager, with zero production disruption. – Managed FTTO deployment across the retail network, overseeing technical integration and project coordination. – Provided Level 3 support for internal users and partners (video surveillance with Sotel, building automation with Eficia). – Led technical aspects of fiber tenders, serving as the primary reference for Fnac Darty to align with business needs. – Designed and implemented complex infrastructure solutions for VIP connectivity, advanced routing, multicast, high availability (HA), and SNMP. – Standardized Fortinet configurations via FortiManager, restructuring templates and integrating a new security rule framework, reducing human errors by 40%. – Developed centralized policy packages on FortiManager to streamline firewall rules across diverse IT environments. – Automated network installations using Python, cutting deployment time by 50%. – Implemented advanced security protocols to safeguard sensitive data and ensure compliance. – Overhauled documentation and processes for support and RUN teams, improving operational efficiency and knowledge sharing.

Safran Ceramics-Safran SAE – Safran Brussels (Campus LAN/Datacenter environment) – Refreshed LAN architecture with vPC on C9600 and SWV on C9500 – Performed a network audit to ensure compliance with technical specifications and cabling standards – Updated outdated documentation and provided technical recommendations – Deployed, configured, and racked Core Nexus C9410, Cisco C9300, and C9500 (over 50+ équipement for the new warehouse of Safran) Calderys (Worldwide carve-out environment) – Led the network migration during the carve-out from Imerys to Calderys for le LAN scope – Managed LAN (Cisco), WiFi (Meraki + Cisco), ISE, and Palo Alto environments – Migrated and configured new switches and access points – Developed WiFi templates to streamline deployments – Provided Level 3 support – Created network architecture diagrams for each migrated site – Updated network inventory – Offered security recommendations based on identified vulnerabilities, standardized site architectures, and deployment procedures (LAN/WLAN on Meraki scope) – Conducted knowledge transfer sessions with the client team Thales (Data Center – WiFi project) – Contributed to the WiFi implementation for the SENS project in Thales' data center using FortiAP – Provided expertise and recommendations on WiFi architecture and configuration – Collaborated with the client to optimize network performance and security – Delivered tailored technical advice to ensure the solution aligned with Thales' specific needs

N3 support – Incident management using Landesk – Automation of modification, deletion, addition of configuration tasks on network equipment with Python/Powershell/API – Scripting with TCL for Fortigate and python/API for switch and access point Meraki – Migration of ATM routers to GE in collaboration with OCWS – Refinement of policies by learning on firewalls with the Firewall Analyzer tool – Configuration and customization of local server web page using meraki API for Fnac Darty needs – Creation of a graphical interface and automation of the creation of firewall templates according to the different architectures/versions – Migration from MPLS architecture to SD-WAN – POC new architecture to meet the new needs of small warehouses

– POC SASE Environment: FW fortinet, switches cisco Catalyst and Meraki, Access point Meraki