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Elias B.EB

Elias B.

Pentester & Cybersecurity Consultant | Penetration Testing

€600/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Elias

Do you have a web application, APIs, cloud infrastructure, or systems integrating artificial intelligence that you want to secure effectively?

I am a cybersecurity and penetration testing consultant, specializing in realistic attacks carried out with the same techniques as real attackers, in a 100% legal, controlled, and contractual framework.

My approach is business-risk oriented: I identify and exploit vulnerabilities that have a real impact on your business, your data, and your users as a priority, allowing you to fix what truly matters.

What I offer
• Web, API, Mobile, and Cloud Penetration Testing
• Pentesting of SaaS applications and complex environments
• Security audit of AI / LLM systems (exposure, abuse, prompt injection, business logic)
• Red Team simulations and advanced attack scenarios
• Vulnerability analysis and risk prioritization

Deliverables
• Clear, structured, and prioritized reports by criticality
• Technical evidence and concrete recommendations
• Exchanges with your technical teams if necessary
• Strict adherence to NDAs, confidentiality, and regulatory constraints

Methodology & Guarantees
• Recognized frameworks: OWASP, PTES, MITRE ATT&CK
• Offensive and defensive vision
• Clear communication, including for non-technical stakeholders
• Ad hoc interventions or targeted high-value missions

Available for security audits, penetration tests, or short missions.
  • English

    Fluent

  • French

    Native or bilingual

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

Experience

  • SNCF
    Pentester
    DIGITAL AND IT
    October 2024 - October 2025 (1 year)
    Saint-Denis, France
    I perform comprehensive penetration tests (web, API, cloud, infrastructure) to enhance the security of critical systems.
    My approach is inspired by PTES / OWASP / MITRE ATT&CK standards, with a focus on prioritizing real risk and rapid remediation.

    I have contributed to penetration testing missions for large public and railway groups (e.g., SNCF), including:
    • Application audits (OWASP Top 10, REST/GraphQL APIs)
    • Internal and external penetration tests on network infrastructures
    • Cloud audits (AWS, Azure, GCP – IAM, S3, configurations)
    • Security checks on industrial environments (railway IT / OT)
    • Technical report and clear summary for CIOs and CISOs

    Deliverables provided:
    • Technical report + executive report (CTO/CIO-friendly)
    • PoC and exploitation screenshots
    • Prioritized remediation plan + post-audit support

    Tools: Burp Suite Pro, Nmap, Nessus, Metasploit, Wireshark, BloodHound, CrackMapExec, Python, Bash
    Methods: OWASP, PTES, MITRE ATT&CK, NIST SP800-115
    Nmap OWASP 10 Nessus Bsecure Burp
  • Alten
    Intern
    DIGITAL AND IT
    May 2019 - September 2019 (4 months)
    Developer intern in the field of development in Node/ VBA /python / C++.
    Automation of all redundant tasks for a project management team.
    Team leader.
    Python Node.js C++ VBA
  • Tracip
    Intern
    DEFENSE AND MILITARY
    July 2017 - December 2017 (5 months)
    Nancy, France
    6-month internship in digital forensics in the field of cybersecurity.

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Education

  • Bachelor
    Epitech
    2020
    Bachelor (3 ans) d'Epitech qui sera alimenté d'un master dans l'expertise et l'innovation technologique.
  • Master
    Epitech
    Master dans l'innovation et l'expertise technologique

Skill set

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