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Sedjro Nisette M.SN

Sedjro Nisette M.

IT Risk & GRC Consultant | SI Security Governance

€800/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sedjro Nisette

IT Risk & GRC Consultant, I support organizations in structuring their security governance, IT risk management, and regulatory compliance.

I work on missions such as:
  • 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.
With over 14 years of experience in critical environments (banking, transport, telecoms), I am accustomed to working in complex contexts requiring rigor, coordination, and a transversal vision.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lyon (up to 10km), Lille (up to 10km)

Experience

  • BNPP CIB
    SI Security & Governance Architect
    BANKING AND INSURANCE
    November 2022 - Today (3 years and 9 months)
    Paris, France
    Context

    Mission 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 Delivered

    Enhanced IT risk control and contribution to regulatory compliance in a complex banking context.
    IT Risk Management Risk Analysis IT Regulatory Compliance IT Project Security GRC
  • SNCF GROUPE
    ❖Cybersecurity Consultant – Governance & Operations | SNCF Group
    April 2020 - October 2022 (2 years and 6 months)
    Paris, France
    Context

    Cybersecurity 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 Delivered

    Enhanced IT risk control and resilience of a critical IS, with a pragmatic approach balancing security requirements, service continuity, and operational constraints.
    ISO27005, EBIOS RM, ISO27001,NIS2 , Security Architecture Cyber-resilience IT Risk Management
  • ARVAL
    Security & Networks Consultant
    TRANSPORTATION
    November 2016 - March 2020 (3 years and 4 months)
    Paris, France
    Context

    Mission 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 Contribution

    This experience provides a solid technical foundation, on which my pragmatic approach to governance and IT risk management is built today.
    IT Infrastructure Network Security Loadbalancing IPS/IDS WAF

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Education

  • Computer Engineering Cycle, Telecommunication Network Systems Option
    INSA
    2011

Certifications

  • EBIOS RM
    PECB
  • ISO 27005
    PECB

Skill set

Categories