Cybersecurity engineer — Zug, Switzerland

Maxime Chantemargue

Securing Siemens fire-safety industry at scale, deployed worldwide.

Now
Product & Solution Security Expert Siemens Smart Infrastructure
Focus
  • Secure-by-design architecture
  • Threat modeling
  • Product security management
  • Compliance
Since
5+ years in secure software engineering

Profile

I design systems with the complexity they need — no more — so they hold up over time.

At Siemens I sit between product management and security: I turn what the industry needs and what current compliance demands into security requirements the product lines are built against.

Secure by design

  • Threat modeling
  • End-to-end product security
  • Security assessment
  • Vulnerability management
  • Fire-safety standards (EN / UL)
  • IEC 62443
  • CRA / GDPR compliance

Engineering

  • C / C++
  • Rust
  • Dart / Flutter
  • Java
  • Python

Offensive

  • Reverse engineering
  • Malware analysis
  • Exploitation

Platform

  • Linux
  • Docker
  • Firebase
  • GCP
  • AWS

Experience

  1. Jan 2025 —

    Siemens Smart Infrastructure

    1. Product & Solution Security Expert

      Mar 2026 — Present

      Cybersecurity owner for the Digital Offering apps and the fire-safety gateway portfolios across EMEA and the US.

      • End-to-end security design
      • Security assessment
      • Vulnerability management
      • Secure standards implementation
      • CRA and GDPR compliance
      • Process optimisation

      Product lines I own

      • Fire Connect
      • Fire Manager
      • Fire Install
      • Modular GatewayEN/UL
      • Compact GatewayEN/UL

    2. Software Engineer

      Jan 2025 — Mar 2026

      • Architecture design
      • Secure implementation
      • Optimisation

      Product lines I built on

      • Compact Gateway
      • Desigo
      • Cerberus
  2. 2021 —

    Tutorapp

    1. Co-founder & Developer

      A peer-tutoring app with 900+ users in 5 countries, born during the pandemic. Shipped native on iOS and Android in four languages, on a zero-commission model. Built and maintained the full stack since 2021.

  3. Django

    Netplus SA

    1. Software Developer

      Internal web applications in Django and Python: backend architecture, API development and automated test pipelines.

  4. Umbraco

    Nanoxi Sàrl

    1. Software Developer

      CMS-based web solutions in Umbraco and C#: frontend integration, content workflows and client-facing features.

Projects

Research

Bachelor thesis — HEIG-VD, 2024

Security analysis of the LoRaWAN 1.1 cryptographic layer

An examination of whether AES-ECB, AES-CCM and AES-CMAC behave securely once they run on resource-constrained IoT hardware, with attention to weak randomness and nonce handling.

Several devices reuse the IV/nonce under AES-CCM — a catastrophic failure that allows plaintext recovery.

LoRaWAN 1.1AES-CCMAES-CMACAES-ECBRustMITM

Talks

  1. Mar 2026

    Sécurité des réseaux WiFi publics

    Webmardi #168 — 42 Lausanne, with Anthony Coke

    What actually threatens you on a public network, whether a paid VPN earns its subscription, and which protections modern networks already apply by default.

    Event Recording

    Public WiFiVPNNetwork security

Education

  1. 2020 — 2024

    Engineer degree in Cybersecurity

    HEIG-VD — Haute École d'Ingénierie et de Gestion du Canton de Vaud

    Cryptography, network security, system exploitation and secure software development. Thesis on the LoRaWAN 1.1 cryptographic layer.

  2. 2015 — 2020

    CFC in Information Technology

    EPTM — École Professionnelle Technique et des Métiers

    Federal Certificate of Competence. Programming, networking, databases and system administration.

Press

Contact

Open to conversations about cryptography, security review and secure product engineering.