Guillaume Goessel
Senior Cyber Security Consultant
Salaire / Taux journalier
Paris, France
Freelance
Peut venir sur site
Expertises
Langues
À propos
Introduction
Senior Cyber Security Consultant with 5+ years at Aon specializing in penetration testing and application security assessments. Expert in threat modeling, network security, and mobile/web app vulnerabilities with proven mentorship capabilities. Ready to secure your infrastructure with comprehensive security audits and actionable recommendations.
Expérience de travail
SecOps Engineer
HermesFreelance
janv. 2026 - Présent
10 mois
Paris, France
Partnered with the SecOps team to track, analyze, and drive the remediation of critical security vulnerabilities. Managed mitigation strategies across a diverse infrastructure, securing everything from legacy on-premise servers to modern cloud workloads (AWS, hybrid).
Aon
avr. 2019 - oct. 2025
6 ans 7 mois
7620 Paris, Danemark
Senior Cyber Security Consultant
mai 2022 - oct. 2025
3 ans 6 mois
7620 Paris, Danemark
As a senior consultant, my mission is to mentor junior colleagues and perform peer reviews on the work done by the team, while also continuing to deliver high-quality client projects.
Cyber Security Consultant
avr. 2020 - mai 2022
2 ans 2 mois
Londres, Royaume-Uni
As a Cyber Security Consultant at Aon, I help our clients to assess the security of their infrastructures and applications. I conduct several highly technical engagements, including: - Host Build Reviews (Windows and Linux) - Web Application Security Assessments - Mobile Application Security Assessments - Network Penetration Testing
Associate Consultant
oct. 2019 - mai 2020
8 mois
Intern
avr. 2019 - oct. 2019
7 mois
Londres, Royaume-Uni
Intern
Oscaro
juil. 2018 - août 2018
2 mois
Paris Area, France
Worked on refining and implementing a Prometheus & Grafana stack in a summer internship to unburden the monitoring solution at Oscaro.com, a major french online retailer. I also had to adapt the metrics in accordance with the Data team.
President
Supélec Rézo Metz
mai 2017 - mai 2018
1 an 1 mois
Metz Area, France
President of the Rézo Metz association that provides the dorm with an internet connection, manages both a wired and a Wi-Fi network, runs multiple web-services and servers (with Ansible and custom/legacy bash scripts).
Web Developer
Junior CentraleSupélec
sept. 2017 - mars 2018
7 mois
Designed and implemented an international online subscription platform for JCS, the school's junior company
Intern
Banque Thémis
juil. 2017 - août 2017
2 mois
Paris, France
Worked in the IT department and helped solve employees' everyday technical difficulties
Formation
CentraleSupélec
Engineer's degree
2016 - 2019
4 ans
Licences et certifications
Certified AI/ML Pentester (C-AI/MLPen)
Délivré le : août 2024
Certified Blockchain Practitioner (CBP)
Délivré le : janv. 2024
Certified AppSec Pentester (CAPen)
Délivré le : janv. 2023
OSCP
Délivré le : avr. 2020
CREST Registered Penetration Tester (CRT)
Délivré le : déc. 2019
Portfolio
Homelab Kubernetes Hybrid
