- Company Name
- Aubay
- Job Title
- Ingénieur Réseau & Sécurité - Nantes (F/H)
- Job Description
-
**Job Title**
Network & Security Engineer
**Role Summary**
Senior or experienced Network & Security Engineer responsible for designing, building, and operating the network infrastructure, security, and internet access for a large banking client. Works in a dynamic environment, contributing to both BUILD (project development) and RUN (level‑3 support) functions, ensuring high availability, security compliance, and continuous improvement.
**Expectations**
- Deliver complex network and security projects on schedule and within budget.
- Provide expert technical support to Tier 1/2 teams and handle critical incidents.
- Communicate clearly with diverse stakeholders, including vendors, internal teams, and clients.
- Document architecture, processes, and procedures consistently.
- Foster knowledge sharing and drive automation initiatives.
**Key Responsibilities**
*BUILD (Project Development)*
- Conduct feasibility studies and resource estimations.
- Design network architecture, including LAN/WAN, MPLS, VPN, load balancers, and routing.
- Collaborate with security experts to integrate protection measures.
- Define technical specifications, scope, and deliverables.
- Lead deployment, testing, and documentation of new solutions.
*RUN (Level‑3 Support)*
- Act as Tier 3 technical expert and support Tiers 1 & 2.
- Resolve complex incidents and participate in crisis response cells.
- Coordinate with vendors, manufacturers, and OSPs.
- Identify and implement process improvements.
- Disseminate knowledge through workshops, documentation, and mentoring.
**Required Skills**
- Network fundamentals: LAN, WAN, MPLS, VPN, switching, routing, load balancing.
- Proficiency with Cisco (ISE, WLC, Prime, DNA), Aruba, Huawei devices.
- SD‑WAN experience with Fortinet or Cisco SD‑WAN solutions.
- Security: Fortinet firewalls, VPN, certificate management, PCI/LPD basics.
- Automation: scripting (Python/Bash), configuration management tools.
- Strong analytical, problem‑solving, and communication abilities.
- Ability to work independently and in collaborative teams.
**Required Education & Certifications**
- Bachelor’s degree or higher in Computer Science, Information Technology, Network Engineering, or a related field.
- Vendor certifications preferred: CCNA/CCNP, CCIE, Cisco Security (CSIS, CSSP), Fortinet Network Security Expert (NSE 4/5), Aruba Advanced Network Administrator, Huawei Certified Network Professional.
- Experience level: Minimum 5‑7 years in network and security engineering, with proven senior or lead responsibilities.