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Quentin MalletQM

Quentin Mallet

Cybersecurity Expert #ReadyToHelp

€800/day
Poitiers, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Quentin

Cybersecurity expert, I put business at the heart of my practice. My experience in startups, mid-sized companies, and large corporations allows me to offer you a security architecture adapted to your needs, scalable, and to effectively negotiate with your clients, insurers, and suppliers on cyber aspects.
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Poitiers (up to 50km), Paris (up to 10km)

Experience

  • Silae Group
    CISO
    SOFTWARE PUBLISHING
    January 2022 - August 2025 (3 years and 7 months)
    Poitiers, France
    — Security management for the leading HRIS provider in France, 1,000,000 clients, 7,500,000 payslips per month. Within the Silae group, responsible for developing and driving the Security, compliance, and certifications strategy, I work in a dynamic, fast-growing sector. The criticality of the data (payroll, health data, etc.) and the demanding regulatory environment have allowed me to apply the experience gained in key account management.
    ISO 27001 Project Management Agile Methodology Team Management Python
  • Majorel
    Information System Security Officer and DRI
    TELECOMMUNICATIONS
    January 2020 - January 2022 (2 years)
    Poitiers, France
    — Multi-source threat hunting (physical and cyber) — Handling security incidents (intrusion attempts, data leaks, ...) — SOC collaboration on rules and alert systems (e.g., patch management and vulnerability scans) — Compliance monitoring of client and PSSI frameworks — SIEM: Rapid7 — Compliance and internal audit ISO27001 and client frameworks — Security crisis management in an English-speaking environment — Support and follow-up for English-speaking key accounts — Participation in Steering Committees/Project Committees/Project Management on security aspects
    — Automation of a compliance verification pipeline — Programming of security tools (PowerShell, Rust) deployed and supported on 4k+ machines in production — Drafting of security annexes — Security audits: internal audits conducted within the company and participation in CTFs (mainly Hack The Box) — Client relations: First point of contact for requests from a US-based key account on technical and security aspects of the service provided — Windows: Deployment and administration of host-based monitoring systems on servers and workstations, as well as security scripts. — Python: automation of administration and compliance verification tasks — PowerShell, Rust: deployment of administration and security scripts in a Windows environment
    Python 3 Project Management Key Account Management Cybersecurity Governance IT Governance
  • Alten Group
    MAIF Security Analyst
    BANKING AND INSURANCE
    January 2019 - January 2020 (1 year)
    Niort, France
    — SIEM: ELK, Splunk — PostgreSQL Database — Software and network architecture project monitoring — Writing alert tools based on log extractions — Technical assistance to development teams — Technical monitoring of GDPR compliance — System and network architecture for international projects — Technical liaison with international project teams
    Cybersecurity Architecture IT Governance Cybersecurity Governance Python Contract Negotiation

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Education

  • CISO,
    Silae Group
    2025
    RSSI,
  • PMP (Project Management Professional) Certification
    2022
    Certification PMP (Project Management Professional)

Skill set

Categories