- Company Name
- SNCF ACT
- Job Title
- Administrateur ou Administratrice réseau
- Job Description
-
Job title: Network Administrator
Role summary:
Responsible for maintaining, optimizing, and supporting the local area network (LAN) and related telecommunications infrastructure across multiple operational sites. Ensures high availability, performance, and security of network and workstation environments for railway traffic management and corporate applications.
Expectations:
- Keep the LAN always operational with minimal downtime.
- Deliver timely resolution of network and workstation incidents.
- Conduct proactive maintenance, upgrades, and documentation.
- Provide technical expertise to project teams and user communities.
Key responsibilities:
• Maintain operational state of LAN/WAN/MAN equipment and ensure high availability.
• Monitor network performance and alarms (SNMP, supervision tools).
• Perform preventive and corrective maintenance on networking hardware.
• Backup configuration, upgrade firmware following national standards.
• Investigate incidents, produce post‑mortem reports, and enact corrective actions.
• Resolve latency and throughput issues reported by users.
• Audit network architecture to enhance efficiency and scalability.
• Configure network hardware per administrative and technical directives.
• Draft and update technical documentation (procedures, diagrams, architectures).
• Plan and execute network expansions (add switches, services, etc.).
• Re‑engineer obsolete network infrastructure: redesign, select components, prepare change dossiers.
• Install, configure, and test workstations for traffic control, video surveillance, passenger information, and enterprise communications.
• Deploy software specific to workstation roles and troubleshoot installation problems.
• Participate in large‑scale deployments (e.g., Windows version roll‑outs).
• Manage spare‑parts inventories and cold/hot spare replacement strategy.
• Monitor equipment health, identify aging components, propose upgrades.
• Collaborate with telecommunications teams (first‑line support) and level‑2 support.
• Train and assist end‑users on new software and security practices.
• Lead production planning, progress tracking, ticketing, and reporting to the manager.
• Interface with other IT entities on cross‑functional projects.
• Lead complex or major projects, ensuring adherence to deadlines.
• Join on‑call rotation for the Mediterranean region.
Required skills:
- In‑depth knowledge of LAN/WAN/MAN design, configuration, and troubleshooting.
- Experience with SNMP monitoring, network performance analysis, and alarm management.
- Hands‑on skills in routing & switching, fiber optics, RJ45, SFP modules, stackable switches.
- Competence in firmware updates, configuration backup, and documentation standards.
- Familiarity with Windows and Unix/Linux workstation administration and deployment.
- Ability to design, author shop drawings, and prepare change approval dossiers.
- Strong problem‑solving, incident investigation, and root‑cause analysis.
- Project management basics: planning, scheduling, reporting, and stakeholder communication.
- Good interpersonal skills for user training, support, and collaboration across teams.
- Awareness of cybersecurity best practices for network and workstation environments.
Required education & certifications:
- Bachelor's degree (or equivalent) in Computer Science, Information Systems, Telecommunications, or related field.
- Professional certifications such as Cisco CCNA/CCNP (preferred), Juniper JUNIPER or equivalent networking credentials.
- Additional certifications in security (CompTIA Security+, CISSP) and project management (CAPM, PMP) are desirable.