---
title: Resume
url: 'https://arnaud.cordier.work/en'
markdown: 'https://arnaud.cordier.work/en/index.md'
lang: en
date: '2023-02-21'
---

# Resume

## Arnaud Cordier - ArnC

###### Security engineer | Pentester | Red teamer | Bounty hunter

 Address: 

- Lyon
- France

 Contact: 

- arnaud\*at\*cordier.work
- arnaud\*at\*cryptid.fr
 [cryptid.fr](http://cryptid.fr) 

- [FR](https://arnaud.cordier.work/fr)
- [EN](https://arnaud.cordier.work/en)

#### About me

12+ years in offensive security, specializing in Red Teaming, from physical intrusion to application security. I uncover vulnerabilities, simulate real-world attacks, and help organizations strengthen their defenses. Skilled in pentesting, code audits, AD assessments, and physical access audits, with a track record of CVE discoveries. Passionate about pushing the limits of security.

#### Things I'm good at

- Pentesting and Red Teaming
- Opensource Technologies
- Application Security

#### Published CVEs

3

CVE-2019-11816 - Pfsense / OPNsense

CVE-2023-33228 - SolarWinds
CVE-2024-22244 - Harbor

#### More skills

###### 01 General skills

- Red Teaming
- 

- Web application pentesting
- 

- Code audits
- 

- AD pentesting
- 

- Mobile applications pentesting
- 

- Forensics and investigation
- 

- Physical access audits (RFID / locks)
- 

- System administration
- 

- Network administration
- 

- DevOps
- 

- Secure development champion (OWASP)
- 

- Project management
- 

- Pre-sales
- 

###### 02 Languages | Technologies

Linux | Windows

GCP | AWS | Azure

Dev Python | Golang

Audit Java | PHP | C# | Ruby

Openvas | Nexpose | Acunetix | Nessus

KVM | Proxmox | VMWare ESXi

Docker | Kubernetes

Postgres | MySQL | MongoDB

Icinga2 | Prometheus | Grafana

OPNSense | pfSense | Cisco Meraki

#### Volunteer work

2018 - Today

Member of the strategy and operating team

4water International - Water and sanitation related charity.

2018 - Today

Dance teacher - Co-President

Salsa4Water Lyon - Water and sanitation related charity.

2017 - Today

Dance teacher

Salsa4Water Lyon - Water and sanitation related charity.

#### Languages

- French Mother tongue

- English Fluent
- 

- German B2 level
- 

#### Education

2011 -2014

Master Of Science (M.Sc), Computing. R&D specialization

INSA de Lyon (France).

2009 - 2011

Scientific undergraduate courses

INSA de Lyon (France).

2008 - 2009

Scientific Baccalauréat with highest honors

Institution Sainte Marie, Belfort (France).

#### Certifications and completed trainings

7

SANS / GPEN
Offensive Security / OSCP / OSWE / OWSP
AT Security / Physical intrusion techniques

ANSSI - PASSI - Penetration testing / Code audit / Audit manager (Expired in 2021)
Basis Technology / Autopsy Basics and Hands On

#### Experience

2023 - Today

Freelance Cybersecurity expert

CryptID, Lyon.

2021 - 2023 | 2 years

Infosec engineer

LumApps, Lyon.

2020 - 2021 | 5 months

Red Team operator | Contractor (Advens)

BPCE-IT, Lyon.

2016 - 2021 | 5 years

Lead pentester | Security Consultant

Advens, Lyon, France.

2014 - 2016 | 2 years

Pentester | Security Consultant

Certilience, Lyon, France.

2014 | 6 months | Internship

Software conception and development, 3D visualization

The CoSMo Company, Lyon, France.

2013 | 4 months | Internship

Web development | R&D project

Performance Engineering Lab., University College Dublin, Ireland.

2012 | 3 months | Internship

Scientific computing and parallel programming (C/C++)

Areva NP, Lyon, France.

#### Hobbies

 Jazz Piano

 Mountain sports

 Reading

 Latin dances

 Traveling

 Paragliding

 Climbing

 Foreign cultures

Design by [Fernando Baez](https://www.behance.net/fbaezb). Coding & Implementation by [GRAV](http://www.getgrav.org) team.

---

## Navigation

- Previous: [Home](https://arnaud.cordier.work/en/home.md)
- Next: [Typography](https://arnaud.cordier.work/en/typography.md)
- Children:
  - [About me](https://arnaud.cordier.work/en/left/personal-statement.md)
  - [Things I'm good at](https://arnaud.cordier.work/en/left/my-specialities.md)
  - [Published CVEs](https://arnaud.cordier.work/en/left/education.md)
  - [More skills](https://arnaud.cordier.work/en/left/design-skills.md)
  - [Volunteer work](https://arnaud.cordier.work/en/left/experience.md)
  - [Languages](https://arnaud.cordier.work/en/left/language-skills.md)