Linux Senior System and Network Administrator / Cloud Architect

Location: Issy-les-Moulineaux, France. Based at the company headquarters; remote work may be applied after the probation period.

Company

LINAGORA develops open-source and collaborative technology focused on digital sovereignty and reducing dependence on GAFAM platforms.

What you will do

• Manage and maintain Linux servers and on-premise infrastructure, ensuring performance, availability, upgrades, monitoring, and security.
• Design, implement, and optimize secure cloud architectures using platforms such as OVH and Outscale.
• Configure and maintain firewalls, VPNs, and network infrastructure, and resolve complex network issues.
• Support internal users and clients across email, Wi-Fi, file sharing, video conferencing, and other infrastructure services.
• Collaborate with DevOps, development, product, administrative teams, and external partners.
• Organize the work and professional development of Linux system administrators in France and internationally, while contributing to open-source projects.

Requirements

• At least five years of experience in a similar Linux system and network administration or cloud infrastructure role.
• Higher education degree in computer science, minimum Bac+5.
• Advanced Linux administration skills and proficiency with cloud technologies and tools including Docker, Kubernetes, Terraform, and Ansible.
• Strong understanding of network, application, email, DAV, OpenID Connect, and Matrix protocols, plus security best practices.
• Ability to diagnose and resolve complex issues in multi-tier environments and document systems, policies, and procedures.
• Good English proficiency and ability to work in an international, cross-functional environment.

Nice to have

• Passion for open-source technologies and digital sovereignty.
• Experience leading or organizing the work of system administrators.

Culture & Benefits

• Open-source-focused environment with access to technical experts and active contributors to the open-source community.
• Collaborative work in an international team that values diverse perspectives.
• Remote work policy available after the probation period.
• Headquarters located in Villa GoodTech with access to the Seine, a departmental park, public transport, and parking solutions.