Freelancer profile translated to English.
Back to original languageAbout Raphael
👨💻 Cybersecurity Developer & Pentester, I put my offensive skills to the service of application and network security.
🔍 Specializing in penetration testing, I perform targeted technical audits on web applications, exposed interfaces, internal infrastructures, and Internet attack surfaces. I apply OWASP standards, security best practices, and a rigorous remediation-oriented approach.
💡 Key Skills:
Web Pentest (black box / grey box)
Internal/external network penetration testing
OSINT & exposure mapping
Application security audit (OWASP Top 10)
Code review and counter-audits
Corrective support and technical assistance
🔧 Technical Stack:
Python, Bash, PHP, JavaScript, HTML/CSS, MySQL
Linux, Git, Shell scripting, WordPress, pentest tools (Burp, Nmap, Nikto, SQLMap, etc.)
✅ Over 20 audits performed, 6 years of experience in full-stack development, and a concrete, structured, and documented approach.
📩 I am available for:
One-off or regular penetration tests
Web / network security audits
Vulnerability analysis and post-audit support
Application security consulting missions
🤝 Feel free to contact me, I respond quickly to any request.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- First FinanceFull-stack Developer / Cyber Security AdvisorEDUCATION AND E-LEARNINGSeptember 2025 - Today (9 months)Paris, FranceCross-functional mission combining full-stack development, cybersecurity, DevSecOps, and technical project management on a high-volume application used by over 150,000 users.I participated in the evolution, security, and industrialization of a platform based on a Python/Django and Open edX ecosystem, working on both the application layers and the infrastructure and delivery processes.On the development side, the mission included the design and maintenance of Django back-end features, integration of specific components, development of custom Python packages, and creation/adaptation of Open edX plugins to meet specific business needs while improving code maintainability.On the infrastructure and DevOps side, I contributed to the architecture and operation of Kubernetes environments, focusing on scalability, resilience, deployment security, and automation. I also worked on CI/CD pipelines to ensure reliable deliveries, automate tests, improve traceability, and reduce risks during production deployments.The cybersecurity dimension was central: participation in security analysis, application pentest actions, vulnerability remediation, security-oriented code review, hardening of configurations, securing data flows, and integrating secure development best practices into the project lifecycle.I also contributed to compliance topics, technical documentation, process formalization, and team support to align technical, security, product, and operational constraints.Stack: Python, Django, Open edX, Open edX plugins, Python packages, Kubernetes, CI/CD, DevSecOps, pentest, application security, compliance.
- XMCOPentesterCONSULTING AND AUDITSSeptember 2024 - March 2025 (6 months)Paris, FranceWithin a company specializing in cybersecurity audits, I participated in numerous penetration tests on web applications, internal networks, and cloud infrastructures.My role consisted of identifying vulnerabilities, analyzing associated risks, and proposing corrective measures adapted to the audited environments. I also performed configuration audits and code reviews.This experience allowed me to refine my technical skills (pentest, exploit analysis, report writing) as well as my communication abilities with client teams.
- Adoc Talent ManagementSoftware DeveloperEDUCATION AND E-LEARNINGJanuary 2020 - January 2021 (1 year)Paris, FranceDeveloper of software solutions for R&D. Intranet web application, full experience as a fullstack developer, database management, application hosting, server logic, UI, UX, and design.
Reviews
Victor
Nivo-Web
Reviewed on 1/10/2024
I wish to express my deep gratitude for the exceptional work you have done as a freelancer on our various development missions. Your expertise, creativity, and rigor have greatly contributed to the success of our projects.
You have tackled complex challenges with remarkable ease, even exceeding our expectations. Your ability to quickly understand our needs and propose innovative solutions has been a real added value.
Looking forward to collaborating again in the future.
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Education
- Architect in digital technologies, Computer programming / developer, general42Architecte en technologies du numérique, Programmation / Développeur fullstack, Sécurité informatique.
- Engineering ScienceLycée Gustave Eiffel2017Bac S - Science de l'ingénieurie - Anglais - Allemand
Certifications
- MOOC SecNumacadémieANSSI2025
- Expert in IT ArchitectureÉcole 42