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Kilian PICHARD

Freelance Cybersecurity Engineer specializing in infrastructure, networking, and DevSecOps. I help clients with hardening, compliance, and automation.

About

Who am I?

My passion for cybersecurity began in high school, where I developed a strong interest in engineering and problem solving. After earning a technical degree in computer science and graduating from engineering school, I chose to specialize in designing secure systems, driven by one conviction: protection should not be a reaction, but an anticipation. My goal is to build infrastructures and applications where security is integrated from the design stage, without complicating their operation.

At home, my homelab is always running: firewall, switch, Proxmox, Docker, etc. Not for work, but out of pure passion. It’s a way for me to stay in touch with technology, to learn and test freely, whether it’s containers, network architecture, DevSecOps, or other aspects of engineering.

With my experience in infrastructure hardening, compliance, and automation, I work in a variety of environments to integrate robust and tailored solutions. Whether auditing network equipment, hardening servers, or supporting compliance with standards, I favor effective and discreet security, designed to integrate naturally with business needs.

Experiences

2025 - Present

Freelance Cybersecurity Engineer

Freelance

Assignment at a client with high security standards: hardening Windows/Linux and Cloud infrastructures, auditing firewalls and network equipment, SIEM integration and scripting (PowerShell/Python/Bash). II901, CIS, ANSSI, and ISO 27001 compliance with risk analysis, document validation, and cyber monitoring.

2023 - 2025

Cybersecurity Engineer

Astek

Cybersecurity engineer assigned to several projects with a focus on network and server infrastructure. Project security monitoring, II901/ANSSI/CIS compliance, equipment hardening (firewalls, switches, encryptors, Linux/Windows OS, hypervisors, NAS). SIEM log configuration and analysis, team awareness training on best practices.

2022 - 2023

Cybersecurity Engineer Intern

Continental Digital Services France

Security management and compliance in close collaboration with the SOC. Design of SOC alert management processes, risk analysis according to the EBIOS RM method. Comprehensive management of ISO 27001 certification: implementation, ongoing maintenance, and monitoring of the renewal audit.

Skills

Network security

FirewallVPNIDS/IPSSegmentationVLANNAT/ACL

Technologies : Stormshield, Palo Alto, Fortinet, pfSense

SOC supervision

SIEMLog analysisWiresharkNmap

Technologies : Splunk, Wazuh, ELK Stack

Hardening

FirewallsSwitchesServersHypervisorsNASConfiguration audit

Compliance

ISO 27001ANSSICISII 901EBIOS RM risk analysis

DevSecOps

Python/Bash/PowerShellCI/CDAnsiblePKICryptography

Technologies : GitHub Actions, Ansible

Infrastructure

LinuxWindowsProxmoxDockerCloudRoutingHomelab

Technologies : Proxmox, Qemu/KVM, Docker Compose, Portainer