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Domains of study : web audit, internal audit, forensic, reverse, phishing..

Training website : root-me.org, hackthebox.eu

Cybersecurity blog : https://blog.cmargraff.fr

Languages : English C2 (TOEIC 965/990), Deutsch and Italian beginner

License A and B

After a master in Network and Telecommunication in l'école des Mines Lille, and a formation in cybersecurity-master in Sapienza (Roma), I developp myself as a Pentester (cyber-security auditor).

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STUDIES

2018-2019

Semester in Sapienza (Roma, Italy)

A semester in master of cyber-security at Univesity of Sapienza in Rome.

2016-2019

Engineer school IMT Lille-Douai

Engineer study in a computer sciences and telecommunication school : IMT lille-douais

2013-2016

Preparatory school : Maths Sup / Maths Spé

Three years in a preparatory school, with advanced mathematics and physics ORT Strasbourg.

2012-2013

bachelor's degree with English and mathematics options

high school : Saint André in Colmar.

PROFESSIONNAL BACKGROUND

Mar. 2019 - Sep. 2019

Auditor in computer security (Penetration Testing) at Fomrind

Member of the Digital Investigation Team at Formind. In charge of testing security level of companies (External security intrusion, internal, conf audit, code audit...).

  • Pentest (wikipédia : Penetration test)
  • Training and awareness of computer security for employees
  • Creation of a recruitment challenge
  • Internal cyber-security audit
  • Audit report writing

Sep. 2017 - Jan. 2018

Auditor in computer security (Penetration Testing / Redteam) at ITrust

Member of the Red Team at ITrust. In charge of testing security level of companies (External security intrusion, internal, flash audit, code audit...).

  • Pentest (wikipédia : Penetration test)
  • Training and awareness of computer security for employees
  • Creation and detection of malwares
  • Code review
  • Audit report writing

Juin/Juillet 2017

Cybersecurity consultant for Orange Luxembourg

Detect security breaches of websites and internal servers, then write a report for Orange Luxembourg.

  • Pentest
  • Code review
  • Audit report writing

2017 - Today

Entrepreneur : Webmaster

  • Conception of website under the name of C. Margraff
  • Website maintenance contract
  • SEO

Feb./mar. 2017

Systems and networks technician - OCI Informatique

  • Taking part of the technician team of OCI Informatique
  • Preparing and mounting post and servers
  • Troubleshooting Hotline
  • Post Installation and Troubleshooting at Customers
  • On-site technician support

Jul. 2016

Private Home Programming Course

python programming lessons for beginners at home, writing and correcting exercises

Jun. 2015

Worker - Dessindus

  • Manufacture of mechanical parts according to plans
  • Storekeeper Help
  • Accounting Help

SPARE TIME

  • Active member on root-me.org (cyber security training site)
    -> SQL injection, XSS, Local File Inclusion, Log Analysis, CTF and Wargame ....
    My profile: corentin9 : more than 3300 points .
  • Member of Hack The Box (cyber security training site)
  • I also take part in CTF (Catpure The Flag) like "La Nuit Du Hack" (Paris), or The International Forum of Cybersecurity (Lille).
  • Personal project: creation of photo editing software (inspired by GIMP) entirely in python 3, more info on my github page .
  • Various projects with a Raspberry PI : remote controlled car, wifi router, access badge system, VPN, NAS ...