- Company Name
- Free-Work
- Job Title
- [Ingénieur Sécurité et Réseaux] H/F
- Job Description
-
**Job Title**
Security & Network Engineer (Full-Time)
**Role Summary**
Design, secure, and manage complex network environments, focusing on threat mitigation, flux control, and partner interconnection re‑certification. Collaborate with network, architecture, security, and operations teams to assess, remediate, and validate traffic flows, ensuring robust compliance and resilience against ransomware risks.
**Expectations**
- Minimum 5 years of experience in administration and security of multi‑site, enterprise or datacenter networks.
- Proven track record in risk analysis, firewall rule compliance, and traffic matrix re‑certification.
- Strong analytical, structured communication, and autonomous problem‑solving skills.
- Collaborative mindset, oriented toward solution delivery and network security best practices.
**Key Responsibilities**
- Reconstruct existing traffic matrices and analyze current routing and filtering rules.
- Cleanse and validate data using network references, tools, and firewall rule sets.
- Identify risks such as insecure protocols, overly wide openings, or unsupported configurations.
- Coordinate with Network, Architecture, and Contract Owners to define target matrices.
- Recommend remediation (restrict flows, delete risky protocols, enforce justification).
- Submit validated matrices for coding and implementation by network operations teams.
- Monitor implementation, verify global consistency, and maintain documentation.
**Required Skills**
- Cisco platforms (Catalyst, Nexus 7K/9K, ASR).
- Dynamic routing (BGP, OSPF).
- Firewall & VPN technologies (Checkpoint, Juniper, Fortinet).
- Rule governance tools (Tufin or equivalent).
- MPLS, SD‑WAN, and operator VPN environments; HaProxy exposure is a plus.
- Firewall rule analysis, compliance checks, and risk identification.
- Excellent communication, synthesis, and teamwork skills.
**Required Education & Certifications**
- Bachelor‑level degree in Computer Science, Information Technology, or related field.
- Professional certifications preferred: CCNA/CCNP (Cisco), CCSP/CCSK (ISC‑²), NFPA, or equivalent.