About Sedjro Nisette
- IT risk analysis and mapping (ISO 27005, EBIOS RM),
- Implementation or strengthening of IS security governance,
- Scoping and deployment of regulatory frameworks (DORA, NIS2),
- Support for CISOs, Risk Managers, and IT teams in regulated environments.
French
Native or bilingual
English
Fluent
Experience
- BNPP CIBSI Security & Governance ArchitectBANKING AND INSURANCENovember 2022 - Today (3 years and 9 months)Paris, FranceContextMission within a critical banking environment, with strong stakes in security governance, IT risk management, and regulatory compliance.Interventions
- IT risk analysis and mapping for projects and existing applications
- Definition and validation of security requirements in IT projects
- Validation of secure architectures
- Contribution to IS security governance and security committees
- Interaction with CISO, IT, Risk, and Business teams
Value DeliveredEnhanced IT risk control and contribution to regulatory compliance in a complex banking context. - SNCF GROUPE❖Cybersecurity Consultant – Governance & Operations | SNCF GroupApril 2020 - October 2022 (2 years and 6 months)Paris, FranceContextCybersecurity mission within a critical transport information system, with major stakes in availability, operational resilience, and IT risk management, in a highly constrained environment.Interventions
- Management of sensitive flow and access validations in critical application environments
- Analysis of IT risks related to flows, access, and application architectures
- Contribution to IT project security (security by design)
- Participation in the definition, writing, and updating of security policies, standards, and requirements, in line with regulatory and internal frameworks
- Participation in security crisis cells and support for major incident management
- Conducting cyber-resilience studies on critical application chains
- Interaction with IT, security, and CISO teams in a multi-stakeholder context
Value DeliveredEnhanced IT risk control and resilience of a critical IS, with a pragmatic approach balancing security requirements, service continuity, and operational constraints. - ARVALSecurity & Networks ConsultantTRANSPORTATIONNovember 2016 - March 2020 (3 years and 4 months)Paris, FranceContextMission in an international environment, with strong stakes in infrastructure availability, operational security, and service continuity.Interventions
- Operation and security of network and security infrastructures
- Contribution to network and security architecture evolution projects
- Management and analysis of security incidents in coordination with IT teams
- Implementation and monitoring of security rules (flows, access)
Key ContributionThis experience provides a solid technical foundation, on which my pragmatic approach to governance and IT risk management is built today.
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Education
- Computer Engineering Cycle, Telecommunication Network Systems OptionINSA2011
Certifications
- EBIOS RMPECB
- ISO 27005PECB