Mathieu
LE CALONNEC
Cybersecurity Engineer
Google SecOps · Cloud GCP · SOC · Blue Team
ISEN-graduated engineer specializing in defensive security. Detection, incident response
and Cloud & On-Premise security daily at Airbus D&S in Toulouse.
Who am I?
ISEN-graduated cybersecurity engineer at Airbus Defence & Space in Toulouse. Blue Team oriented: detection, incident response and Cloud & On-Premise security on Google SecOps, Bitdefender and Trellix. Experience across Defence, banking and direct client (freelance) environments. Personal projects and CTF labs on the side.
SOC & SIEM
Managing and evolving SOC solutions on Google SecOps at Airbus D&S. Detection rule writing, event correlation and log analysis.
App Security & CTF
Practice on RootMe, HackTheBox and TryHackMe (CTF, BurpSuite, Metasploit). Understanding attack vectors applied to Blue Team detection and defence.
CTI & OSINT
Cyber Threat Intelligence applied to the SOC context. Threat analysis, IoC tracking and active security monitoring.
Cloud Security
Implementing security rules on Cloud GCP. Experience with AWS and OVHCloud. Certificate management in production environments.
Forensics & Logs
System & application log forensic analysis. Built a personal Python SIEM for HTTP Apache log analysis (SQLite, FastAPI, Leaflet).
SecDevOps
Secure CI/CD with Jenkins and GitLab CI, Docker. Pipeline vulnerability fixing, SAST and dependency management.
Incident Response
Qualification, investigation and remediation of security incidents. Vulnerability tracking and continuous improvement of SOC processes.
Network & Cryptography
Cisco CCNA 1 & 2, Firewall, network administration. Applied cryptography and certificate management.
Career & Education
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● Current position2025 — PresentCybersecurity Engineer
Airbus Defence & Space · Toulouse
In an industrial Defence environment. Managing and evolving SOC solutions on Google SecOps, implementing Cloud GCP security rules, log analysis, incident management and certificate lifecycle.
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2023 — 2024QA & DevOps Engineer
Crédit Mutuel Arkéa
In a banking environment. Work-study contract. Agile project management, security vulnerability fixes, library updates, code review and CI/CD deployment.
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2021 — Sept. 2024Engineering Degree · Graduated Sept. 2024
ISEN Brest
General engineer specializing in cybersecurity. Cryptography, forensics, CTI/OSINT, Cisco CCNA and risk management. CVUT Prague internship (Summer 2023) completed during this programme.
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Summer 2023 · During ISEN studiesInternational Intern
CVUT Prague
Czech Institute of Informatics, Robotics and Cybernetics. Medical data analysis via smartwatch (Xiaomi Mi Band 6). Report available here.
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2019 — 2021Preparatory class
ISEN Rennes
Integrated preparatory cycle at ISEN Yncréa in Rennes, Computer Science and Networks (CIR) stream.
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2019Scientific Baccalaureate
Lycée Joseph-Loth · Pontivy
Scientific baccalaureate with Engineering Sciences (SI) option.
Portfolio
Personal, professional and academic projects — from cybersecurity to embedded development.
Get in touch
Open to discussions about opportunities or collaborations in cybersecurity.
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Mathieu Le Calonnec
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email mathieu.le.calonnec.pro@gmail.com
linkedin linkedin.com/in/mathieu-le-calonnec
location Toulouse, Occitanie, France
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position Cybersecurity Engineer — Airbus Defence & Space
open to Discussions, missions, collaborations
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