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Laurent BroussyLB

Laurent Broussy

Expert PKI

€850/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Laurent

My mission is to help you protect your company's intangible values and assets, and to ensure the smooth running of your business while respecting your regulatory constraints. To protect your clients
To this end, I will manage this protection by implementing my relational and management skills with your teams, your suppliers, and the authorities.
To successfully complete this mission, I will propose cybersecurity solutions, particularly tools that will ensure your protection through authentication, confidentiality, and recognition of your assets and actions.
Following an audit, I propose the implementation of a solution based on cryptology tools (public key management platform and certificates).
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • IMH (Inter Mutuelles Habitation) (BK assurances)
    Project Manager
    BANKING AND INSURANCE
    June 2025 - Today (1 year and 1 month)
    Niort, France
    As part of strengthening the security of the IMA group (Inter Mutuelles Assistance), the mission consists of implementing all SI security plan projects for the IMH subsidiary.
    Within the Information Systems Department, the mission aims to manage all security plan projects, from the study phase to completion, ensuring compliance with cost, deadline, and quality requirements. The mission requires anticipating the impacts of transformations and supporting change.
    Cybersecurity IT Project Management
  • Canal+ (SIA Partners)
    PKI Expert
    PRESS AND MEDIA
    October 2024 - January 2026 (1 year and 3 months)
    Puteaux, France
    General Context
    As part of the redesign of Canal plus group's PKI infrastructures, the mission consists of providing expertise and support to the infrastructure teams in choosing the target architecture and solutions.

    Description
    • PKI POC Implementation: Setting up a test infrastructure to evaluate KeyFactor EJBCA (on-prem and SaaS), Evertrust (on-prem and SaaS), and Venafi (SaaS) solutions. Defining test specifications. Configuring POCs. Writing a final report.
    • Target Architecture Definition: Writing a High-Level Design (HLD) describing a temporary architecture and, following POCs, a target HLD.
    • HSM Cluster Implementation (Thales Luna): Support for HSM implementation (configuration) and writing related manuals.
    • PKI Document Writing: Key Ceremony, Certificate Policy (PC), Data Processing Certificate (DPC), etc.

    Technology: Thales Luna 7 HSM, KeyFactor EJBCA PKI, Evertrust Stream, Venafi, KeyFactor Command CLM and Evertrust Horizon. Use of ACME, EST, WCCE protocols. MDM Intune and Jamf interconnection.
    PKI HSM CLM Cybersecurity
  • SICAE Oise (Cyblex consulting)
    Cybersecurity Consultant
    ENERGY AND UTILITIES
    May 2024 - July 2024 (2 months)
    Toulouse, France
    In preparation for NIS2, supporting GRC teams for the SICAE Oise operator. Writing the vulnerability management policy, studying a crisis management policy, proposing security architecture improvements.
    Cybersecurity GRC

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Education

  • DEA, Informatique
    Université Paul Sabatier Toulouse III
    1991
    DEA, Informatique

Skill set

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