Vulnerability Analyst - Freelance (M/F)

Collective.workParisEURESpublished 09/17/2026
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Must-have:JavaScriptPythonSecurity
Machine translation — original language: French.Show original

Daily Rate (TJM): 500-550

Missions

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Manage vulnerability scan campaigns on infrastructures (servers, workstations, network equipment, and applications)

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Analyze and qualify detected vulnerabilities

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Prioritize remediation actions according to their criticality and exposure level

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Ensure follow-up of correction plans with technical teams

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Define, deploy, and maintain organizational and technical security measures

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Guarantee the integration of security requirements into IT projects

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Administer and optimize cybersecurity tools

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Support IT department teams in the implementation of corrective actions

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Participate in user awareness and the dissemination of cybersecurity culture

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Contribute to the continuous improvement of the vulnerability management process

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Participate in security hardening projects (hardening, patch management, etc.)

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Automate certain analysis and reporting tasks

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Contribute to the detection, processing, and management of security incidents

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Participate in the implementation of the IT continuity plan

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Produce security reporting and indicators

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Participate in audits, cyber-insurance processes, and responses to calls for tender

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Maintain active monitoring of vulnerabilities, threats, and new cybersecurity practices

Profile sought

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Bachelor's or Master's degree in Computer Science, orientation Systems and Networks or specialization in Cybersecurity

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Confirmed experience of at least 5 years in systems administration (MANDATORY)

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Initial experience in cybersecurity is a real asset

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Mastery of cybersecurity tools: EDR, NDR, XDR, vulnerability management solutions, and Pentest practices

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Excellent knowledge of Microsoft environments: Windows, Windows Server, Active Directory, GPO, MECM, and Intune

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Good level in scripting and automation: Python, PowerShell, JavaScript, KQL, SQL, and CQL

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Technical English allowing for the understanding of documentation, reports, and professional exchanges

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Analytical and synthesis skills

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Rigor and organizational skills

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Curiosity and a strong interest in cybersecurity issues

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Ability to work in a team and interact with technical and business stakeholders