Job description

Company culture :

Cnexia is driven by a culture strongly focused on performance and competitiveness, where ambition, challenge and customer orientation are key drivers of success. This dynamic is complemented by a collaborative dimension, promoting trust, teamwork and close managerial support. It also integrates an innovation component that encourages initiative, adaptability and experimentation. Finally, a structured organizational culture underpins the whole by ensuring process rigor, reliability and operational efficiency.

• Design, deploy, and administer network infrastructures (LAN, WAN, WLAN, VPN).
• Install, configure, and maintain Cisco network equipment (switches, routers, Wi-Fi controllers).
• Administer Fortinet security solutions (FortiGate, Forticlient EMS, FortiNAC, IPS, SSL/IPSec VPN).
• Ensure the availability, performance, and supervision of network infrastructures.
• Configure and maintain firewalls, security policies, VLANs, ACLs, and VPNs.
• Implement cybersecurity best practices and strengthen information system security.
• Conduct security audits, vulnerability analyses, and follow up on remediation plans.
• Participate in the management, analysis, and resolution of security incidents.
• Supervise infrastructures using monitoring and reporting tools.
• Write and maintain technical documentation for infrastructures.
• Collaborate with systems, cloud, and support teams on IT projects.
• Provide Level 2/3 technical support for network and security issues.

• Design, deploy, and administer network infrastructures (LAN, WAN, WLAN, VPN).
• Install, configure, and maintain Cisco network equipment (switches, routers, Wi-Fi controllers).
• Administer Fortinet security solutions (FortiGate, Forticlient EMS, FortiNAC, IPS, SSL/IPSec VPN).
• Ensure the availability, performance, and supervision of network infrastructures.
• Configure and maintain firewalls, security policies, VLANs, ACLs, and VPNs.
• Implement cybersecurity best practices and strengthen information system security.
• Conduct security audits, vulnerability analyses, and follow up on remediation plans.
• Participate in the management, analysis, and resolution of security incidents.
• Supervise infrastructures using monitoring and reporting tools.
• Write and maintain technical documentation for infrastructures.
• Collaborate with systems, cloud, and support teams on IT projects.
• Provide Level 2/3 technical support for network and security issues.

Education

• Master's degree (Bac+5) in Computer Science, Networks, Telecommunications, Cybersecurity, or equivalent.

Experience

• Minimum 3 years of experience in network and cybersecurity administration.

Technical Skills

• Excellent command of TCP/IP, VLAN, STP, OSPF, BGP, NAT, DHCP, DNS, and VPN protocols.
• Solid experience with Cisco equipment (Switching & Routing).
• Very good command of Fortinet solutions, especially FortiGate.
• Good knowledge of security technologies: Firewall, IDS/IPS, MFA, NAC, SIEM, network segmentation.
• Experience in administering IPsec and SSL VPNs.
• Proficiency in network supervision tools (PRTG, Zabbix, SolarWinds, or equivalent).
• Knowledge of Windows Server and Linux environments.
• Knowledge of virtualization (VMware, Hyper-V) and Cloud (Azure, AWS) is a plus.

Appreciated Certifications

• Cisco CCNA or CCNP
• Fortinet NSE4 / Fortinet Certified Professional (FCP)
• CEH or any equivalent cybersecurity certification

Personal Qualities

• Analytical and problem-solving mindset.
• Rigor, autonomy, and organizational skills.
• Ability to work in a team and manage multiple projects simultaneously.
• Good communication and technical documentation skills.
• Responsiveness to incidents and service-oriented attitude.