Share your Windows server hardening expertise ! Hays is looking for a Windows Server Hardening Consultant for one of its client based in Luxembourg. Freelance contrat or permanent contract via a payrolling company 1 remote day per week Location : Sandweiler (Luxembourg) Your responsabilities Windows Server security analysis Implementation of CIS Benchmarks Windows Server OS hardening Advanced Group Policy (GPO) configuration Active Directory (AD) security management Operational impact testing Hardening exception management PowerShell / DSC automation Security documentation Post-hardening Level 3 (L3) support Internal compliance audits Collaboration with infrastructure teams Security integration into IT projects Secure patch management Privileged account security management Security log management and analysis Microsoft security monitoring & threat intelligence Your profile Technical expertise: Expert-level knowledge of Windows Server OS (2016/2019/2022) internals, services, security components, and registry-based configurations. Hands-on experience implementing CIS Windows Server Benchmarks (Level 1 & Level 2). Strong understanding of Active Directory, domain security policies, and Kerberos/Ntlm authentication flows. Experience with Azure IaaS, including: Azure VM extensions Azure Policy Azure Automation / DSC Azure Monitor / Log Analytics Proficiency in PowerShell for automation, configuration, and troubleshooting. Soft skills: Excellent analytical and diagnostic abilities. Strong communication skills for explaining complex technical impacts to non-technical stakeholders. Ability to work independently and serve as a trusted security advisor. Preferred qualifications: CIS Benchmark certification or previous CIS hardening project experience. Microsoft certifications: AZ-104 (Azure Administrator) AZ-305 (Solutions Architect) SC-100/SC-200/SC-300 (Security) Experience with: Microsoft Defender for Cloud GPO modeling & Resultant Set of Policy (Rsop) analysis Blue Team / Security Operations Hays plc est l'un des principaux groupes mondiaux de recrutement de professionnels. Hays est l'expert du recrutement de personnes qualifiées, professionnelles et compétentes dans le monde entier. Hays est le leader du marché au Royaume-Uni et en Asie-Pacifique et également l'un des leaders du marché en Europe continentale et en Amérique latine. Hays intervient pour le compte de milliers d'entreprises des secteurs privé et public, sur des postes en CDI, CDD, Travail Temporaire et Contracting. Hays France & Luxembourg compte aujourd'hui plus de 650 salariés répartis au sein de 22 bureaux (Aix-en-Provence, Amiens, Biarritz, Bordeaux, Clermont-Ferrand, Dijon, Grenoble, La Rochelle, Lille, Lyon, Montpellier, Nancy, Nantes, Nice, Paris, Reims, Rennes, Rouen, Strasbourg, Toulouse, Tours et au Luxembourg) couvrant 25 secteurs d'activité.