Systems and networks administrator

Type: Permanent
Location: Nantes, France

Job description

Within our IT & networks department and working closely with all teams, you structure, install and maintain the devices and required softwares for the proper usability of all IT systems.

Your main responsibilities are:

  • Installation and management of servers (GNU / Linux & Windows) as well as different related hardware (routers, switches, PLCs, etc.).
  • Monitoring and management of network software settings , together with our service providers (DNS, SSL certificates, etc.).
  • Implementation and maintenance of network traffic analysis tools (ntopng, etc.).
  • System administration of various business tools (Jira, Confluence, Bitbucket, etc.) and infrastructure services (Active Directory, LDAP, Samba, DNS, DHCP, RADIUS, Firewall, etc.).
  • Administration of the Zabbix supervision tool.
  • Administration of virtualization solutions (Proxmox, Docker, VMware).
  • Management and monitoring of the different servers backups.
  • Management and wiring of the server room.
  • Permanent support for internal users.
  • Participation in the infrastructure adaptation.
  • Definition, implementation and monitoring of a security policy: audit and deployment of security updates (on hosted servers and AWS ones), implementation and follow-up of password managers, and so on.


  • Higher education in computer science.
  • Minimum 3 years experience in a similar position.
  • You are familiar with GNU / Linux and Windows environments.
  • You are familiar with Bind, IPtables, Active Directory, SSH and shell scripting solutions.
  • You know well about Debian as well as experience in system virtualization (Vmware, LXC, Proxmox, Docker, etc.).
  • You are keen to work on IT security topics.
  • Rigorous, autonomous and enjoying teamwork.
  • Fluent English.