Administrateur AD/Entra-ID - Lille

Opportunité Freelance - Administrateur AD/Entra-ID - Lille

Je recherche un Administrateur AD/Entra-ID

Démarrage ASAP

Localisé à Lille - 3 jours/semaine sur site

ANGLAIS OBLIGATOIRE

Main purpose of the role :

The Active Directory Administrator will be responsible for maintaining and optimizing the existing Active Directory infrastructure, ensuring its security, integrity, and compliance. This role involves consolidating and standardizing systems, managing obsolescence, and safeguarding the environment against security breaches. Maintaining a high level of security and ensuring compliance are top priorities.

Technical tasks :

• In-depth expertise in Active Directory (AD): design, configuration, management of multi-domain environments, Group Policy Objects (GPO), federation, trusts, etc.

• Experience with identity and access management (IAM): authentication, authorization, account management, passwords, LDAP, Kerberos, SAML protocols.

• PKI (Public Key Infrastructure): management of certificates, Certification Authorities, and related security practices.

• AD security and auditing: vulnerability detection, secure configuration, audit tools (e.g., PingCastle, BloodHound, etc.).

• Scripting and automation: PowerShell, scripts for managing, maintaining, and deploying AD components.

• Migration and upgrade management: planning migrations, consolidations, and environment updates.

• Knowledge of other Microsoft components: DNS, DHCP, Exchange, WSUS, etc.

• Management of Managed Service Accounts (MSA) & Group Managed Service Accounts (GMSA) : creation, deployment, management, and best practices for securing and automating service accounts.

• Understanding security standards and compliance regulations: GDPR, ISO/IEC 27001, etc.

Methodological tasks :

• Technical project management: planning, implementation, documentation, and change management.

• Risk analysis and vulnerability management: ability to identify, analyze, and remediate security weaknesses.

• Compliance management: conducting regular audits, reporting, and certification processes.

• Advanced troubleshooting and diagnostic skills: resolving complex AD-related incidents.

Interpersonal and soft tasks :

• Effective communication: explaining technical concepts to non-technical stakeholders.

• Analytical and synthesis skills: quickly understanding technical challenges and proposing solutions.

• Proactivity and autonomy: anticipating security and performance issues before they arise.

• Teamwork and mentoring: sharing best practices and training colleagues.

• Customer-oriented mindset and service awareness: understanding business needs and delivering tailored solutions.

Candidate profile :

• Minimum 5 years of experience in Active Directory administration, preferably in regulated or enterprise environments.

• Hold IT certifications relevant to Active Directory, Windows Server, or security (e.g., Microsoft Certified: Windows Server, Security+).

• Autonomous, meticulous, with a strong focus on security and compliance.

• Excellent interpersonal and communication skills, capable of working within a team.

• Proven experience in managing complex & secure Active Directory environments and Public Key Infrastructure (PKI).

• Strong knowledge of security best practices, identity management, obsolescence management, and system standardization.

• Knowledge and practical experience with PingCastle would be a plus.

Il assure un rôle de conseil, d'assistance, d'information, de formation et d'alerte. Il peut intervenir directement sur tout ou partie d'un projet qui relève de son domaine d'expertise.

L'expert système d'exploitation / réseau télécoms effectue une veille technologique, il participe aux études de l'architecture technique générale et de son évolution ainsi qu'à la qualification des platesformes informatiques.