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Thales

Global defense and aerospace electronics

Consultant Cybersécurité OT

Security Engineering & Architecture +1Confirmed live in the last 24 hours
Full-timeBordeaux, FranceNo salary listed

About the Job

Requirements

  • Experience with industrial environments and architectures, including SCADA, PLC, the Purdue model, and IEC 62443.
  • Mastery of industrial protocols, including Modbus, Profinet, OPC-UA, and S7comm.
  • Ability to produce structured deliverables, including asset and network maps, architecture dossiers, and security studies.
  • Experience with system accreditation processes and security governance structures, including PSSI and security dossiers.
  • The role requires autonomy, rigor, the ability to explain technical topics, and adaptability.

Responsibilities

  • Conduct technical architecture audits of industrial systems, including SCADA, PLC, and HMI systems.
  • Map assets and network architectures, including segmentation, traffic flows, and industrial protocols such as Modbus, Profinet, OPC-UA, S7comm, and DNP3.
  • Identify and assess OT-specific technical vulnerabilities, including obsolescence, misconfigurations, and protocol weaknesses.
  • Design and review OT/IT security architectures according to IEC 62443, including zones, conduits, and industrial DMZs.
  • Define and implement technical hardening recommendations for controllers, engineering workstations, HMIs, and supervisory systems.
  • Support technical remediation projects involving network segmentation, filtering, and remote-access management.
  • Design and deploy OT detection solutions using Claroty and Nozomi sensors.
  • Configure and refine detection rules for clients’ industrial contexts.
  • Contribute to threat-hunting and technical investigation assignments in OT environments.
  • Contribute to documentation of industrial systems, including assets, flows, and network architectures.
  • Assist with architecture dossiers and management of accounts, including access rights and privileged OT accounts.
  • Contribute to security studies, including risk analyses and OT threat scenarios.
  • Write and update response procedures for security incidents and events.
  • Support clients with industrial-system accreditation processes.
  • Assist in preparing and following up on security controls, including regulatory audits and inspections.
  • Support clients’ information-security functions through facilitation, awareness-raising, and security-actor organization.
  • Contribute to compliance checks by tracking applicable requirements and associated action plans.
  • Lead assignments independently or as part of a team, from scoping through client knowledge transfer.
  • Write structured technical deliverables, including audit reports, architecture dossiers, and remediation plans.
  • Explain technical issues to varied audiences, including engineers, information-security managers, and operators.
  • Contribute to technical presales.

About the Company

Thales

Global defense and aerospace electronics

Thales designs and delivers critical technology for aerospace, defense, and digital security. Its products include electronics, software, and data-security systems that power air travel, payments, and modern military platforms, by integrating hardware and software to build systems such as avionics, radar, cybersecurity, and secure communications that collect sensor data and protect networks. It stands out through deep industrial experience, end-to-end solutions across defense, aerospace, and cybersecurity, and a focus on AI and quantum tech, aided by strategic acquisitions and partial state ownership. Its goal is to provide reliable, secure, and connected technologies that support national security, public safety, and everyday life by solving complex security and connectivity challenges.

Company size
10,001+
Company stage
IPO
Headquarters
Meudon, France
Founded
1893

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