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Thomas KristnerTK

Thomas Kristner

Architecture / CyberSecurity / CISO

€1,300/day
Lausanne, CH
15+ years

Average response time: 1 hour

About Thomas

Expert Cybersécurité & vCISO | 17 ans d'exp. | CISSP & CEH

Fort d'un parcours de plus de 17 ans dans l'IT et la sécurité, j'accompagne les entreprises dans la sécurisation de leurs infrastructures critiques et la définition de leur stratégie cyber.

CISO Deputy chez Audemars Piguet, j'ai piloté des programmes de transformation majeurs (SOC, sécurité industrielle/OT, EDR, Gouvernance). Mon expertise combine une vision stratégique (membre de task force C-Level) et une solide base technique (Kudelski Security, architecture Cloud/Infra, Pentest).

Mes domaines d'intervention :

- vCISO / CISO à temps partagé : Pilotage de la gouvernance et des risques.
- Audits & Architecture : Sécurisation d'environnements complexes (IT/OT).
- Opérations : Design de solutions sécurisées, SOC, EDR, et sécurité industrielle (OT).
- Réponse aux incidents : Elaboration de playbooks et gestion de crise.

Certifié CISSP et CEH, je suis disponible immédiatement pour des missions de conseil ou de direction technique. Région de Lausanne, hybride ou remote.

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Cybersecurity Expert & vCISO | 17 years of exp. | CISSP & CEH


With over 17 years of experience in IT and security, I help companies secure their critical infrastructure and define their cybersecurity strategy.


As Deputy CISO at Audemars Piguet, I led major transformation programs (SOC, industrial/OT security, EDR, governance). My expertise combines strategic vision (member of the C-Level task force) and a solid technical foundation (Kudelski Security, Cloud/Infra architecture, Pentest).


My areas of expertise:


- vCISO/CISO on a part-time basis: Governance and risk management.
- Audits & Architecture: Securing complex environments (IT/OT).
- Operations: Designing secure solutions, SOC, EDR, and industrial security (OT).
- Incident response: Developing playbooks and crisis management.


CISSP and CEH certified, I am available immediately for consulting or technical management assignments. Lausanne area, hybrid or remote.
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Audemars Piguet
    Security Expert & CISO deputy
    LUXURY GOODS
    January 2021 - July 2024 (3 years and 6 months)
    Le Brassus, VD, Switzerland
    Leadership & Governance:
    - Stream Lead and Project Lead for the 3-year cybersecurity program.
    - CISO deputy, member of weekly cyber task force made up of board members and C-levels.
    - Lead of 7 major cybersecurity transformation projects and contribution to 11 others.
    - Production of KPIs for the Executive Committee.

    Achievements:
    - Design, documentation, choice of technologies, secure architecture to protect
    industrial systems for the entire watchmaking operation.
    - Improved SOC integrating SIEM, EDR, CTI, SOAR.
    - Development of incident response plan and associated playbooks.
    - Organization and supervision of security audits and intrusion tests.
    7 Directed strategic projects:
    - CTI & Threat Hunting.
    - Continuous pentest program.
    - SOC implementation & assurance
    - Endpoint security.

    Expertise:
    - Vulnerability management program.
    - OT security.
    - Cyber incident response plan & playbooks.
    - SIEM, EDR, SOAR, CTI, Vulnerability Management, Audit, Pentest.
    - IT/OT Security, Architecture, Segmentation, Monitoring.
    - CIS, IEC62443, NIST, ISO 2700x, MITRE ATT&CK.
    CISSP IT Architecture SecOps CISO
  • -
    LoRaWAN / TTN / IoT infrastructure engineer
    ENVIRONMENTAL
    November 2019 - January 2021 (1 year and 2 months)
    Lausanne, Switzerland
    Focus: R&D and prototyping of connected solutions for precision agriculture.

    As part of an entrepreneurial approach, I designed and deployed end-to-end IoT monitoring solutions aimed at optimizing the use of resources in agricultural environments. Although the project remained at the MVP (Minimum Viable Product) stage, it allowed me to develop specialized expertise in low-power networks.


    Technical achievements:

    Network Architecture: Deployment and configuration of LoRaWAN gateways and interconnection with The Things Network (TTN) backend.

    IoT development: Programming of environmental sensors and management of long-range data transmission.

    Transmission security: Implementation of encryption mechanisms specific to the LoRa protocol and securing of data flows between sensors and the cloud.

    Data integration: Implementation of visualization dashboards for the analysis of collected metrics.
    Containerization and Virtualization Radio LoRaWan IoT
  • Vaudoise Assurances
    Senior Hosting Engineer
    BANKING AND INSURANCE
    July 2019 - October 2019 (3 months)
    Lausanne, Switzerland
    This experience enabled me to further develop my infrastructure management skills.
    infrastructure management. I acquired knowledge about optimizing virtualization and storage systems.
    storage systems.
    - Modernization of hosting infrastructure.
    - Virtualization infrastructure management (VMware vSphere, Nutanix).
    - Administration of FC SAN storage systems (Bracade, EMC).
    - Improved log management (Elastic).
    System Integration Cloud Platforms and Infrastructure

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Education

  • ITIL V4
    peoplecert
    2023
    ITIL V4
  • Puppet
    Orsys
    2018
    Puppet

Certifications

Skill set

Categories