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Jean Chartier-KastlerJC

Jean Chartier-Kastler

Pentester | Cybersecurity Analyst

€700/day
12 projects
Lyon, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jean

As an experienced cybersecurity analyst 🐱‍💻, I help companies strengthen their defenses, implement sustainable solutions, and protect their employees and users. Recognized for my in-depth analyses and solutions tailored to specific challenges, I stand out for my ability to meet complex cybersecurity challenges.

My expertise covers a wide range of areas: web and mobile applications, infrastructures, networks, malwares, hardware, IoT, embedded systems, and physical security. Each project is an opportunity for me to bring a tailor-made approach, perfectly aligned with the unique needs of each client.

What truly sets me apart is my passion for innovation and my commitment to staying at the forefront of emerging technologies. I enjoy participating in CTF competitions, which are an opportunity for me to hone my technical skills while gaining a global perspective on the ever-evolving cybersecurity landscape.

Currently seeking new challenges, I am available to discuss any project or opportunity. Do not hesitate to contact me, I will be delighted to tell you more about my services and expertise. 🚀
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Lyon (up to 50km), Paris (up to 50km), Chambéry (up to 50km), Grenoble (up to 50km), Annecy (up to 50km)

Experience

  • Michelin - DCSE
    Cyber Analyst
    MECHANICAL ENGINEERING
    August 2023 - February 2025 (1 year and 6 months)
    Lyon, France
    Vulnerability research and remediation
    Implementation of Security By Design
    Development of an architecture, DevSecOps
    Development of a web application
  • GoSecure
    Pentester
    DIGITAL AND IT
    January 2023 - August 2023 (7 months)
    Performed pentests for numerous Quebec clients.
    Vulnerability research and report creation.
    Client follow-up
    Penetration Testing Infrastructure Web Application
  • Cegedim SRH
    Ethical Hacker - Pentester
    TECH
    September 2022 - Today (3 years and 9 months)
    Boulogne-Billancourt, France
    Performed pentests (Red, White, and Gray Team)
    • Research of application, physical, and social vulnerabilities
    • Social engineering awareness and phishing campaigns
    • Report writing and follow-up on solution implementation
    • Continuous contact with development teams
    Penetration Testing Security Audit code audit

Reviews

5.0

Out of 3 ratings

A

Anne

Anap

Reviewed on 11/10/2021

Very good collaboration on programming Excel tools
A

Anne

Anap

Reviewed on 10/29/2021

Thank you Jean for your responsiveness on this mission!

Recommendations

Francois Chartier-KastlerFC
Manon SennechaelMS
Francois Chartier-Kastler and 1 other person have recommended Jean

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Education

  • Engineering Degree Specialization Cybersecurity
    ECE Paris

Skill set

Categories