Cybersecurity Architect – Security Acceptance Testing Lead

RATP Dev USA

. Implement the IT department’s information security policy .

Posted 10/26/2026full-timeNoisy-le-Grand • FranceSenior💰 €65,000 - €75,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in defining and implementing information security policies, ensuring the integrity and confidentiality of information systems. Proficient in technical security auditing, risk assessment, and the integration of security solutions within complex IT environments.

Highest-signal resume keywords

Cybersecurity ArchitectureTechnical Security AuditingRisk AssessmentInformation Systems SecuritySecure Architecture Models

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Information SystemsIS UrbanizationIS ArchitectureOperating System SecurityNetwork SecuritySecure ProtocolsPenetration TestingVulnerability AssessmentTechnical Acceptance TestingAudit Methodologies

Soft Skills

Communication SkillsTeam CollaborationAttention to DetailProcedure WritingEthical Standards

Tools & Technologies

Security SolutionsSecurity Testing ToolsIntegration ToolsDocumentation ToolsAudit Tools

Industry Keywords

CybersecurityGovernanceStandardsFrameworksInformation Security Policy

About the role

Key responsibilities & impact

Implement the IT department’s information security policy
Ensure the availability, integrity, confidentiality, and traceability of information systems and data
Define and translate security recommendations into technical requirements and/or security solutions
Contribute to the selection of the security solution architecture and ensure its integration into the information system
Lead and/or perform technical acceptance testing before production deployment
Define the functional and technical security architecture of the information system
Challenge the vendor’s technical proposals
Assemble and integrate the various components
Interface the contractor’s solution with existing systems and/or security solutions in the catalog
Define the interfaces and components requiring changes to enable integration
Integrate the solution in development and/or production environments
Contribute to defining the target technical architecture, advise on configuration, and complete the documentation
Support the drafting of audit specifications and define security validation test strategies
Lead and/or support information systems security testing, deployment, and production release phases
Lead and/or perform functional acceptance testing of security components and overall information systems security acceptance testing
Perform technical security acceptance testing to verify the required level of robustness
Detect security anomalies and lead/track their remediation with the project management team and/or vendor
Prepare reports including analysis of vulnerabilities and identified gaps
Highlight and assess security risks and their impact on business operations
Identify and document exceptions, waivers, or instances of non-application of security recommendations
Define risk remediation recommendations related to discovered vulnerabilities
Collaborate with IT teams to adjust implementation of information systems security requirements

Requirements

What you’ll need

Master’s degree (or equivalent) from an engineering school or specialized master’s program in security, systems, or networks
Approximately 10 years of experience, including at least 5–7 years as a Cybersecurity Architect or Cybersecurity Expert
Strong command of information systems, IS urbanization, and IS architecture
Knowledge of market-available security solutions and tools
Knowledge of secure architecture models, including design and integration
Knowledge of operating system security, network security, and secure protocols
Knowledge of application layers
Knowledge of governance, standards, and frameworks, with proficiency in audit methodologies
Proficiency in technical security auditing techniques and penetration testing
Knowledge of vulnerabilities in cyber defense environments
Ability to work across the organization and as part of a team
Strong ability to write procedures tailored to different audiences
Strong summarization and communication skills, with the ability to explain technical topics to non-technical audiences
Strong ethical standards and commitment to public service
Rigor and attention to detail
Participation in on-call support rotations

Benefits

Comp & perks

Up to 9 weeks of annual leave and additional working-time reduction days (RTT)
Free travel on the RATP network, with enhanced coverage of transportation costs in and outside the Île-de-France region
Employer-paid health insurance at 70%
Company-funded disability and life insurance coverage at 100%
Free access to medical centers and numerous specialists
Employee savings plans with employer matching contributions
Sports, cultural, and leisure programs offered by the Social and Economic Committee (CSE)
Career development opportunities within the Group, including internationally
Performance-based variable compensation
Profit-sharing scheme
Fixed salary paid over 13 months
Two remote-working days per week