Jaballi Saif

Intervention on large-scale network transformation projects within a critical banking environment. Design, deployment, and commissioning of highly available network infrastructures.

Main missions: Analysis of business needs and design of network solutions (performance, security, availability) Development of IP-MPLS, WAN, and Datacenter architectures Deployment and migration of datacenters Migration of branches and integration into the MAN Deployment and commissioning of SD-WAN solutions Collaboration with suppliers and telecom operators (testing, link qualification, SPOF elimination) Participation in Disaster Recovery exercises (DRP / BCP) Support for commissioning and skills transfer to operations teams Use of ITSM and network governance tools for change, incident, and configuration tracking

Intervention as an architect on critical Alstom railway projects (Lille and Lyon metro lines). Responsible for the design, maintenance, and supervision of onboard and backbone network infrastructures for high-availability transport environments.

Main missions:

• Analysis of the existing system and understanding of the project context (Lille & Lyon)

• Design and update of optical design documents via AutoCAD

• Maintenance and operation of the IP-MPLS backbone for Lyon Line B

• Update and management of network equipment configurations (Huawei & HPE)

• Supervision of project network equipment in Lille (Hirschmann, Cisco, HPE)

• Opening and management of traffic through Fortinet and Cisco ASA firewalls

• Support for the Test & Commissioning (T&C) team during validation phases

• Maintenance of the SNMPc supervision solution and the SMIC-IMIC application

Technical environment:

Network equipment: Cisco, HPE, Huawei, Hirschmann

Security: Fortinet FortiGate, Cisco ASA

Expert mission within Bouygues Telecom for the integration and evolution of enterprise IP solutions. Intervention on the operator backbone and wholesale access infrastructures, in a context of high load and demanding quality of service.

Main missions:

• Review of HLD/LLD and preparation of operating procedures for enterprise IP integration operations

• Configuration of Nokia LNS (L2TP Network Server) and BNG (Broadband Network Gateway)

• Integration of wholesale clients and validation of collection ports

• Configuration of security and routing policies on FortiManager

• Deployment and configuration of services within the enterprise backbone (Nokia and Cisco)

• Analysis and resolution of QoS issues related to operator transit

• Backbone capacity increase (addition of physical cards/links, enrichment of logical pools)

• Technical documentation and presentation of solutions to IP support teams

Technical environment:

Nokia equipment: SR, ESS, 5620 Cisco FortiManager:

Scope