Network Security Expert Consultant

Devoteam

As a Senior Network Security Engineer (N3), you will be the pillar of the stability, performance and security of our network infrastructures and those of our customers. You will act as a technical expert on a rich and complex technological perimeter, while ensuring a leadership role for the support teams.

Your key responsibilities will include:

• Operations and Incident Management (ITIL):

  • Manage the management of incidents (N3), problems, changes and configuration of security equipment.
  • Analyze and resolve complex production incidents, conduct crisis conferences during degraded or interrupted flows.
  • Manage the level 3 backlog and ensure compliance with service levels (SLAs).

• Expertise and evolution of Security Infrastructures:

  • Manage and monitor Data Center (DC) network security infrastructures.
  • Implement, administer and troubleshoot firewalls (Palo Alto, Check Point, FortiGate) and SD-WAN solutions (Fortinet, Cato Networks).
  • Manage load balancer (F5 BIG-IP), including the creation and management of VIPs.
  • Administer proxy solutions (BlueCoat) and DNS servers (creation, whitlist, troubleshooting).
  • Manage the connection of new partner sites via L2L (site-site), IPSEC, GRE and cross-site VPNs.
  • Ensure that systems and equipment are updated (patching).
  • Certificate tracking and management

• Flow and Access Management:

  • Analyze, validate (technically and functionally) and implement flow opening requests (DOF/ACL) in collaboration with the NSOC teams (N2).
  • Manage rights and access to equipment and tools through solutions like Cisco ISE.

• Am lioration Continue et Leadership :

  • Provide technical support to the level 2 team (NSOC), ensure their skills development and transfer knowledge to them.
  • Propose and implement optimizations to improve quality of service, productivity and security.
  • Write and maintain operating procedures, processes and technical documentation.
  • Actively participate in technological monitoring and management of relationships with suppliers and publishers.
  • Produce activity reports, monitor key performance indicators (KPIs) and write clear and concise reports.