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Florian MauryFM

Florian Maury

Supermalter

DevSecOps

€560/day
2 projects
Cergy-Pontoise, FR
15+ years

Average response time: 2 hours

About Florian

I am a system, network, software and security engineer providing counsel, trainings and engineering workforce as a freelancer. My previous experiences gave me the ability to onboard on complex projects and embrace them in their entirety, with a vision encompassing the needs of software developers, system administrators, and security engineers. Although I can perfectly fit for an architect position, I also have an extensive background of hands-on engineering.

Until recently, I was the infrastructure team leader at Hackcyom, a security company specialized in Cloud Computing Security. This position involved developing a secure image-based Linux distribution for system administrator and developer workstations, maintaining our own information system, and providing counsel for our clients.

Before that, I was the technical leader of a team of 3 working on the design and the development of a network probe based on Suricata. I have an extensive hands-on experience as a Go developer and Python developer, and did a fair bit of system programming, including low-level programming and the very occasional Linux kernel debugging. I worked a lot with the various Linux security features, such as namespaces, seccomp BPF, chroots, *-verity, dm-crypt. I worked with IPsec (strongswan) and wireguard. Finally, I have an extensive experience with Debian and systemd.

Before that, I was a network and protocol security researcher at ANSSI, where I studied various network protocols, including DNS, TLS, HTTP (1 and 2), and GnuPG. I published in various conferences, on network and cryptography topics, and in the French press (MISC).

Throughout my career, I was often given the chance of serving as a trainer on various topics, including web security, system security, TLS, IPFS, authentication, and applied cryptography.

  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Lefebvre Dalloz
    Malt logoOn Malt
    Security auditor, solution architect and web developer
    March 2025 - April 2025 (1 month)
    During this mission, I audited the security of a web product, from the classical web security to the use of cryptographic functions. I also produced a study for various possible implementations of a cryptographic feature for their product and developed the proof of concepts and fixes for my findings.
    Cryptographie Développement web Securité informatique Security Cybersecurity Cybersécurité
  • Florian Maury EI
    Architecte DevOps
    TELECOMMUNICATIONS
    September 2023 - Today (2 years and 9 months)
    Conception et réalisation d'un système d'information de haute sécurité permettant l'administration de systèmes d'information à distance.

    Conception et réalisation des postes de travail durcis se connectant à ce système d'information.

    Conception d'une infrastructure VPN haute-disponibilité avec WireGuard.

    Développement d'un provider Terraform pour la diffusion de secrets dans l'infrastructure en utilisant les hyperviseurs comme intermédiaire de confiance (ssh2vsock).

    Développement d'outils pour la négociation de secrets de manière décentralisée dans les infrastructures (get_secrets).

    Hôte du podcast "Yakafokon" sur les pratiques DevSecOps.


    Terraform GO Ansible Cloud DevOps Proxmox VE Système de noms de domaine (DNS) DNSSEC ACME Wireguard IPSEC Linux Ubuntu Ubuntu Server
  • GATEWATCHER
    Security Engineer
    SOFTWARE PUBLISHING
    October 2018 - January 2023 (4 years and 3 months)
    Paris, France
    I was the technical leader in charge of the design and the development of a network probe, in a team of 3 people. I also designed a Linux distribution for private cloud hosting and served as a security advisor for the various products and the internal network of the company.
    suricata GO Python (langage de programmation) Python (Programming Language) Gitlab Linux Debian

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Education

  • Master's degree, Computer and Information Systems Security
    Université de Limoges
    2015
    Master's degree, Computer and Information Systems Security
  • Licence, Computer Science
    Université de Limoges
    2003
    Licence, Computer Science

Certifications

  • CISSP
    ISC2
    2012
    Cryptographie Architecture SI Cybersécurité ISO 27001 Cybersecurity Securité informatique
  • GPEN - Penetration Testing Certification
    GIAC
    2012
    Cybersécurité PenTest Cybersecurity Securité informatique

Skill set

Categories