Freelancer profile translated to English.
Back to original languageAbout Quentin
Cybersecurity engineer by training and current CISO, I support companies on topics combining security, infrastructure, network, systems, automation, and digital tool development.
My profile is hybrid: I can work on securing an IT environment as well as creating a business tool adapted to a specific need. I am involved in access management, backups, system hardening, network administration, task automation, technical documentation, IT/cybersecurity audits, and the development of web applications, dashboards, or internal tools.
I can help you to:
- secure or improve your existing infrastructure;
- automate a manual or repetitive process;
- create a simple and maintainable internal tool;
- develop a custom website, web application, or dashboard;
- structure your IT procedures, documentation, or best practices;
- implement an IT/cybersecurity audit with a clear action plan.
My objective is simple: understand your real need, propose an effective solution, and then build it properly so that it is useful, robust, and maintainable over time.
French
Native or bilingual
English
Native or bilingual
Remote only
Primarily works remotely
Experience
- NexsonCISO (RSSI) / Security & Infrastructure EngineerAugust 2025 - Today (1 year)Nevers, FranceInformation system security management in an SME/industrial environment, with a very operational role combining cybersecurity, infrastructure, network, systems, and user support.On a daily basis, I work on access security, Active Directory, Microsoft 365, VPN, backups, workstation and server hardening, monitoring, incident management, technical documentation, and continuous infrastructure improvement.I also participate in cross-functional projects: implementing security best practices, structuring procedures, automating IT tasks, improving support, assisting teams, and developing internal tools to streamline processes.This experience allows me to have a very concrete approach: understand field constraints, prioritize real risks, propose maintainable solutions, and implement them properly.
- NexsonIT Security Engineer ApprenticeAugust 2022 - August 2025 (3 years)Garchizy, France3-year apprenticeship in IT security, with varied missions in cybersecurity, infrastructure, network, systems, and support.Participation in securing the information system: access management, configuration hardening, vulnerability monitoring, procedure documentation, user support, and improvement of internal practices.Regular interventions on concrete technical subjects: Active Directory, Windows workstations, servers, network, VPN, backups, monitoring, user support, and improvement of existing configurations.This experience has allowed me to build a comprehensive approach, both technical and operational, with a good understanding of a company's real needs and field constraints.
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Education
- Engineering degree — Cybersecurity and IT TechnologiesINSA Centre Val de Loire2025Formation d’ingénieur spécialisée en cybersécurité, sécurité des systèmes d’information, réseaux, systèmes, gestion des risques et protection des infrastructures numériques.
- EngineeringCPGE Lycée Jules Renard2020Ingénierie