Tixeo

About the Company

The confidentiality of your online communications is your priority, it's ours too.

Founded in Montpellier 20 years ago, Tixeo secures collaboration in the constrained environments of critical organisations.

With its sovereign and Secure by Design technology, the European leader in secure video conferencing ensures your independence and cyber-resilience.

On a day-to-day basis, its 100% teleworking teams are driven by two strong values: trust and innovation.
Thanks to their collaborative work environment and a corporate culture that fosters authenticity and cohesion, Tixeo employees mobilise their expertise and commit together to meet the most stringent requirements of strategic customers.

They trust Tixeo: KMBS, Naval Group, Dassault Aviation, Orange, Afnor, Aéroport de Bordeaux, SOGETI, AMF, Enedis...

- To protect their sensitive information (Restricted, IGI 1300 classified, etc.),
- To guarantee the continuity of out-of-band exchanges in the event of a crisis or cyber failure,
- To facilitate and secure remote collaboration and improve productivity.

The only secure videoconferencing solution to be certified and qualified by ANSSI, for 7 consecutive years, Tixeo is also :

100% RGPD compliant: https://www.tixeo.com/wp-content/uploads/2022/12/TX_MKTG_tixeo-GDPR-guide-EN.pdf
Member of Hexatrust and labelled France Cybersecurity
Member of the Alliance for Digital Confidence (ACN)
Cybersecurity Made in Europe accredited
Partner to 30% of Europe's largest defence companies
Holder of the "Used by the French Armed Forces" label
Member of the French Land and Air Defence and Security Industries Group (GICAT)

Listed Jobs

Company Name

Tixeo

Job Title

Administrateur système Linux / Sécurité

Job Description

Job title: Linux System Administrator / Security Role Summary: Responsible for the ongoing maintenance and security hardening of the internal IT infrastructure, including Linux workstations and cloud‑qualified environments. Supports users, analyzes SOC alerts, enhances threat detection capabilities, and contributes to compliance documentation for ISO 27001 and SecNumCloud. Expactations: Junior level with a strong ability to learn and a passion for Linux and cybersecurity. Must be available to commence work promptly and demonstrate clear technical communication skills. Key Responsibilities: - Perform MCO (ongoing maintenance) of the internal system infrastructure and SecNumCloud‑qualified environments. - Harden, monitor, and ensure compliance of workstation configurations. - Provide user support and troubleshoot system issues. - Analyze and respond to security and monitoring alerts (SOC). - Improve detection efficacy of security tools. - Conduct security vulnerability monitoring and stay current on threat trends. - Execute phishing campaigns and security awareness training. - Draft and update documentation required for ISO 27001 and SecNumCloud certifications. - Manage virtualization (Proxmox), containerisation (Docker), and network (Wireguard). - Script and automate tasks using Bash, Python, Ansible, and OpenBao. - Monitor systems with Grafana and Prometheus; enforce security with Wazuh, Crowdstrike, FleetDM, Miradore, keycloak. Required Skills: - Linux administration (Debian, Ubuntu) - Virtualisation/Containerisation: Proxmox, Docker - Networking: Wireguard - Scripting: Bash, Python - Automation tools: Ansible, OpenBao - Monitoring: Grafana, Prometheus - Security platforms: Wazuh, Crowdstrike, FleetDM, Miradore, Keycloak - Linux hardening techniques - Technical documentation and communication Required Education & Certifications: - Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent practical experience). - Relevant certifications preferred: RHCSA/RHCE, CompTIA Linux+, CompTIA Security+, or equivalent.

France

Remote

06-11-2025