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NETWORK AND SECURITY ADMINISTRATOR - M/F

COMPAGNIE DES ALPESParisEURESpublished 09/04/2026
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Must-have:PythonAWSDevOps
Machine translation — original language: French.Show original

GENERAL MISSION:

Within the Infrastructures & Services department of the DSI, you will join the Réseaux & Télécoms team composed of 3 employees.

As a Network and Security Administrator, you will contribute to the implementation, optimization, and securing of the network and telecom infrastructures of the Group and its subsidiaries.

You will intervene in the administration, evolution, and operational maintenance of network, telecom, and security environments, while providing your technical expertise to IT transformation and evolution projects.

FUNCTIONS:

In this capacity, your mission revolves around the following activities:

  • Ensure the maintenance of the IT system
  • Monitor networks and information security
  • Support and assist teams and users
  • Actively participate in the missions of the network and telecom team
  • Actively participate in the missions of the infrastructures and services team
  • Administer the operational fleet under: Palo Alto / Aruba / AWS / Historique
  • Ensure compliance with the strategy in place
  • Lead the projects of the CDA 2025-2030 network master plan
  • Ensure standardization and compliance with norms
  • Conduct technological monitoring in order to stay up to date with developments in IT systems.

Profile sought:

A graduate with a licence or a master's degree in networks, telecommunications, IT security, or operational development, you have 5 years of professional experience in networking and security, and possess in-depth knowledge of network protocols and technologies.

Rigorous, analytical, and endowed with good interpersonal skills and a sense of service, you enjoy working in a team, sharing your knowledge, and contributing to the continuous improvement of infrastructures.

TECHNICAL SKILLS:

  • Mastery of network architectures and protocols (L2/L3, OSPF, BGP).
  • Good knowledge of network security and filtering mechanisms (firewalls, IPS, VPN).
  • Knowledge of ECMP, BFD, QoS, LACP, and IKE technologies.
  • Experience with Palo Alto, Aruba, and AWS environments is appreciated.
  • CCNP Cisco certification (or equivalent) desired.
  • Skills in automation and DevOps (Python, Ansible, Terraform, CloudFormation) are an asset.
  • Professional English level (B2 minimum).

ADDITIONAL INFORMATION:

  • Remote work possible (up to 2 days per week)
  • This position involves participation in an on-call rotation (approximately 1 weekend every 2 months)