Freelancer profile translated to English.
Back to original languageAbout Théophile
OSCP certified offensive security engineer, with 10+ years of background in development and infrastructure.
I perform professional penetration tests for companies in Switzerland, France, and remotely — with clear deliverables, concrete evidence, and actionable reports.
Currently founder of asphaleia.ai (security posture monitoring platform for SMEs), I take on freelance missions in parallel.
What I offer:
✅ Web, API, mobile Pentest
✅ Internal network & Active Directory audit
✅ AI Red Teaming & LLM agent security
✅ Security architecture review
✅ Report writing (OWASP, MITRE ATT&CK)
Available: Geneva, Lyon (≤50km), remote Europe.
Response time: a few days.
Rate: €750/day.
English
Fluent
French
Native or bilingual
Spanish
Conversational
Can work on-site
Genève (up to 50km), Lausanne (up to 50km), Lyon (up to 50km), Chamonix-Mont-Blanc (up to 50km), Grenoble (up to 50km)
Experience
- AsphaleIACybersecurity ExpertDIGITAL AND ITOctober 2025 - Today (10 months)Geneva, SwitzerlandFounder and expert cyber security engineer.AI, Web, Internal, IoT, Web3, Active Directory Pentest.
- SecuLabsCybersecurity Engineer - PentesterAugust 2024 - October 2025 (1 year and 1 month)Lausanne, SwitzerlandInternal, external, mobile, thick client, web, AD pentests for all types of companies in Switzerland.Report writing and restitution.
- Neurones ITFull-stack engineerDIGITAL AND ITAugust 2020 - December 2023 (3 years and 3 months)Genève, SwitzerlandInformation systems consultant and implementation of Liferay solutions in various sectors, including healthcare, public services, international organizations, banks, and government entities. Focused on cybersecurity and security-focused development with third-party tested applications.• Backend Technologies: Java 7, Java 8, Java 11• Frontend Technologies: HTML, JavaScript, CSS, React, Angular• Operating Systems: Ubuntu, CentOS, RedHat, Windows Server• Databases: PostgreSQL, MySQL, MariaDB, SQL Server, HeidiSQL, SSMS• Tools and other technologies: Git, SCP, Putty, SSL, Tomcat, Nexus, SAML, Active Directory, JIRA, Gitlab, MinIO, Jasper, Nginx, Traefik, Docker, Docker Compose, PgAdminSkills Acquired:Full Stack Development with Liferay
Reviews
B
Benoit
Config email et evaluation devis Pentest - Air Sport Chamonix
Reviewed on 5/2/2026
Théophile intervened for email configuration (switch from OVH to O2switch) as well as an initial security analysis for our company. The work was carried out quickly and efficiently, with a very good understanding of the technical issues.
The communication was fluid throughout the project, with clear and accessible explanations, even on technical subjects.
I recommend without hesitation for cybersecurity missions (it's his specialty), audits, or technical configuration. We plan to use Théo's services again.
Maxime
Watsize
Reviewed on 9/21/2016
Efficient, responsive and proactive. Working with Théophile is simple and pleasant.
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Education
- Information Systems, Security and Networks EngineerECE Paris2015
Certifications
- OffSec Certified Professional (OSCP)Offensive Security2024