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System Cybersecurity Architect

Original title: Architecte Cyber Sécurité Système

Confidential · 75005 PARIS, France · Senior

  • 75005 PARIS, France
  • 12 mois (renouvelables)
  • French

Indexed (11 Aug 2026) · refreshed constantly

Start
ASAP
Duration
12 mois (renouvelables)
Contract
Freelance / B2B
Seniority
Senior
Reference
260811H001

Required skills

Nice to have:Compliance

Languages: French

Job description

Seeking a Cybersecurity Architect with a strong focus on systems and infrastructure to lead remediation and evolution efforts for a critical information system. The role involves defining target architectures, hardening standards, and coordinating technical teams.

Project overview

Profile sought

Missions

As part of a major cybersecurity reinforcement program, you will be involved in the remediation and evolution of a critical information system.

  • Master's degree in IT, cybersecurity, or systems/networks.
  • Significant experience in cybersecurity architecture, with a strong focus on systems and infrastructure.
  • Mastery of system hardening (Windows Server, Linux), Active Directory security, PAM, bastion, virtualization, and storage topics.
  • Good knowledge of network segmentation, tiered administration model, and privileged access and identity management.
  • Experience in critical environments and/or compliance projects.
  • Knowledge of ANSSI requirements and guides (hardening, secure SI administration, AD security) appreciated.
  • Autonomy, rigor, and good coordination skills.
  • Lead the remediation trajectory for system infrastructures and the planning of various projects.
  • Coordinate technical teams (system, virtualization, storage, network), projects, and service providers.
  • Define target architectures for systems, directories, virtualization, storage, and administration, in line with network architecture.
  • Define and enforce system hardening standards (OS, hypervisors, AD, bastions).
  • Ensure compliance with security requirements and support compliance efforts.
  • Lead technical choices and ensure the overall consistency of solutions.
  • Produce and maintain technical and security documentation (architecture files, hardening guides, administration procedures).
  • Lead workshops and support internal teams.

Project details

  • Start: ASAP
  • Duration: 12 mois (renouvelables)
  • Location: 75005 PARIS, FR
  • Languages: French

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