- Company Name
- NEXTON
- Job Title
- Expert Cybersécurité Réseaux H/F
- Job Description
-
**Job Title:** Cybersecurity Network Expert (M/F)
**Role Summary:**
Lead the protection of critical railway communication networks, ensuring confidentiality, integrity, and availability. Design and implement network security policies, conduct monitoring, auditing, and incident response for IP, GSM‑R, LTE‑R, 5G, cloud, and IoT environments.
**Expectations:**
- Deliver robust security architecture for railway infrastructure.
- Detect, mitigate, and prevent cyber threats in real time.
- Maintain compliance with railway cyber‑security standards.
- Provide clear documentation and training to operational teams.
**Key Responsibilities:**
- Analyze and design network security policies for critical infrastructure.
- Monitor and audit networks; identify and remediate vulnerabilities.
- Participate in network evolution projects, ensuring cyber‑security compliance.
- Deploy and configure firewalls, IDS/IPS, VPNs, segmentation, and other protective solutions.
- Perform penetration testing, technical audits, and risk assessments; recommend corrective actions.
- Conduct threat intelligence, trend monitoring, and security awareness initiatives.
- Produce and update security documentation, procedures, and guides.
**Required Skills:**
- 5–8 years of network cybersecurity experience.
- Proficient in TCP/IP, OSPF, BGP, MPLS, SD‑WAN, VLAN.
- Hands‑on with Fortinet, Palo Alto, CheckPoint firewalls; VPN, NAC, IDS/IPS, SIEM.
- Experience in audits, penetration testing, and risk analysis on critical systems.
- Strong analytical, autonomous, and communication skills.
- Prior exposure to railway networks (GSM‑R / LTE‑R) is advantageous.
- Familiarity with supervision/automation tools such as PRTG, Datadog, Grafana, Ansible, Terraform is a plus.
**Required Education & Certifications:**
- Bachelor’s or Master’s degree (Bac+5) in Cybersecurity, Networks, or equivalent.
- Relevant certifications preferred: CISSP, CISM, CEH, or equivalent.