Thierry Wrzyszcz
Senior Cybersecurity & Blockchain Security Lead
Salaire / Taux journalier
Paris, France
Freelance
Peut venir sur site
Expertises
Langues
À propos
Introduction
Cybersecurity expert with 20+ years specializing in AI, blockchain, and emerging tech risk management. Led security for major DLT initiatives at BNP Paribas including ECB CBDC trials and smart contract audits. Expert in regulatory frameworks (DORA, EBA), third-party risk assessment, and enterprise-scale security program delivery.
Expérience de travail
BNP Paribas CIB
mai 2021 - juil. 2025
4 ans 3 mois
93100 Montreuil, France
Cybersecurity Referent – AI & DLT/Blockchain Projects
mai 2023 - juil. 2025
2 ans 3 mois
93100 Montreuil, France
AI Senior Security Advisor Acted as cybersecurity reviewer for AI initiatives under the ISP framework, ensuring early risk identification and mitigation. Collaborated with Group-level stakeholders to define AI security requirements and design the AI security lifecycle model DLT / Blockchain Security Lead Acted as cybersecurity advisor on major DLT initiatives involving BNP Paribas, including ECB CBDC trials in collaboration with Eurosystem stakeholders such as Banque de France (DL3S) and Bundesbank (Trigger). Performed in-depth security reviews on internal platforms (Neobonds, AssetFoundry, DAWN) and third-party solutions (Fireblocks, Allfunds, Partior, Fnality,..). Led smart contract risk assessments and coordinated external audits. Reviewed cryptographic key usage and protection mechanisms (signing, encryption, custody), relying on technologies such as KMS, HSM, MPC, and TEE.
Third-Party Security Manager – TPRM – EBA/DORA
oct. 2021 - mai 2023
1 an 8 mois
93100 Montreuil, France
Transverse Risk, Technical & Regulatory Assessment. Security manager operating in a regulatory-driven context (EBA Outsourcing, DORA), performing in-depth technical and risk assessments of third-party solutions supporting critical business and IT functions. Provided cross-domain expertise across application and infrastructure layers to ensure alignment with the Group’s risk posture and regulatory expectations. Leveraged frameworks such as NIST, SOC 2, ISO 27xxx, CSA CCM, and EBIOS-RM to structure consistent and auditable evaluations.
Cyber Risk Assessment Lead
mai 2021 - oct. 2021
6 mois
93100 Montreuil, France
Proposed and operationalized the integration of the ANSSI EBIOS RM methodology into existing risk analysis practices. Developed a pragmatic and scalable execution model adapted to field constraints: streamlined workshops, attack path scenarios, and actionable remediation plans. Conducted numerous risk assessments while also supervising external providers, ensuring alignment with internal standards and security governance.
Head of Cybersecurity – Operations & Governance (CISO Support)
Avril
sept. 2018 - mai 2021
2 ans 9 mois
Paris La Défense & Rennes
Led operations and drove the group-wide cybersecurity program, while contributing to governance alongside the CISO, across 150 sites and 10,000 employees. • Supported CISO in updating ISSP, crisis response playbooks, and conducting security audits (IT & OT) • Led awareness programs and workshops for business teams • Defined and implemented a scalable security baseline across entities • Reviewed architectures and supported security integration in projects via the ISP process • Managed alerts and incidents, selected and operated security tools (EDR, CASB, PAM, etc.) • Directed a multi-year cybersecurity program covering risk remediation in factories and international sites, IT/OT segmentation, bastion setup, PAM governance, MFA rollout, and MDR deployment
IT Project Manager – Digital Workplace International Rollout
AVRIL
sept. 2017 - oct. 2018
1 an 2 mois
International Falls, Minnesota 56649, États-Unis
Led the international deployment of the new collaborative workstation environment across several countries (Morocco, Belgium, Romania, Germany, Poland). • Standardized deployment processes • Built and managed cross-country rollout teams • Coordinated with local IT and business stakeholders
Senior Technical Lead – Digital Workplace, Collaboration & Active Directory
Avril
mars 2015 - oct. 2017
2 ans 8 mois
Paris & Rennes
Senior contributor in a group-wide IT convergence program, leading strategic initiatives on: • Windows 10 rollout as early adopter (UX, security, compatibility, application packaging) • Office 365 deployment, including migration from legacy messaging systems (Lotus Notes, Exchange) • Group-wide Active Directory design & implementation (10,000+ users, federated identities) • Managed cross-functional teams and coordinated rollout across multiple business units
Projects director
SOCOTEC
mars 2013 - mars 2015
2 ans 1 mois
78280 Guyancourt, France
Led IT transformation and infrastructure outsourcing projects at SOCOTEC, managing the relocation of on-prem servers to IBM BCRS and integrating public cloud services (IBM SmartCloud, SoftLayer). Oversaw the IBM cloud contract lifecycle and delivered key workplace and infrastructure initiatives including storage optimization (EMC, Dell, Riverbed), VDI deployment, AD consolidation and secure enterprise mobility (Citrix XenMobile)
IT Infrastructure Manager / CTO
SITA SUEZ France
sept. 2010 - janv. 2013
2 ans 5 mois
Led IT infrastructure operations, security, and evolution for the Île-de-France region. Oversaw key projects such as the relocation of HQ systems, deployment of Alcatel IP telephony across agencies, rollout of EMC VNX storage, Riverbed-based data centralization, and AD migration to Group standards.
Head of IT
RENZO PIANO Building Workshop
mai 2008 - juil. 2010
2 ans 3 mois
Paris, France
Responsible for the overhaul and operation of IT infrastructures in the context of high-stakes international architectural projects involving multi-billion budgets. – Led the complete redesign of IT infrastructures for the headquarters and agencies, including network, security, and storage – Designed and implemented the IT master plan, integrating high availability, security, and business continuity requirements – Enhanced global collaboration through the deployment of WAN optimization solutions, high-performance storage systems, and tools tailored for handling large CAD/3D files
Senior Consultant - Infrastructure & Security
ESN ARENAL CONSULTING
mai 2003 - mai 2008
5 ans 1 mois
Courtaboeuf
Infrastructure & Security Consultant delivering full-cycle IT engagements across pre-sales, security audits, infrastructure design, and deployment — with a strong multi-domain technical foundation
Security Architect
Administration Publique
mars 1999 - mai 2003
4 ans 3 mois
Designed secure open-source infrastructures and developed web applications for a local government, as both developer and security architect
Formation
Lycée
Baccalauréat
1993 - Présent
33 ans 10 mois
CNFPT
1999 - 2003
5 ans
École MJM Art School Paris
1995 - 1996
2 ans