Alten, leader européen de l’ingénierie et du conseil en technologies, recherche un(e) Expert Active Directory (H/F) pour rejoindre ses équipes en Île-de-France et intervenir chez nos clients grands comptes
Avec plus de 53 000 collaborateurs dans le monde, Alten accompagne les entreprises dans la sécurisation et l’optimisation de leurs infrastructures critiques. Vous serez au cœur des enjeux d’identité et d’accès, en travaillant sur des environnements complexes et hybrides.
💻 Environnement Technique
Vous interviendrez sur des infrastructures Active Directory avancées, incluant :
Active Directory Multi-forêts, hybridation avec Azure AD, migration de domaines.
Sécurité GPO, RBAC, audits, Conditional Access, MFA.
Intégration IAM Okta, Ping Identity, SailPoint.
Outils de gestion PowerShell, ADFS, Azure AD Connect.
Monitoring SCOM, Azure Monitor, outils de logging.
🎯 Missions Principales
Concevoir et administrer des infrastructures Active Directory complexes.
Migrer et consolider des domaines et forêts.
Sécuriser les annuaires (GPO, audits, conformité).
Hybrider AD avec Azure AD pour des environnements Cloud.
Résoudre les incidents critiques (réplication, authentification).
Former les équipes aux bonnes pratiques AD.
🔍 Profil Recherché
Diplôme d’ingénieur ou Master 2 en informatique/systèmes.
9 ans d’expérience minimum en administration Active Directory.
Expertise en migration, sécurisation et hybridation AD/Azure AD.
Maîtrise de PowerShell, ADFS, et des outils de monitoring.
Anglais professionnel pour des missions internationales.
Rigueur et capacité à gérer des environnements critiques
𝐀 𝐰𝐨𝐫𝐥𝐝 𝐥𝐞𝐚𝐝𝐞𝐫 𝐢𝐧 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐚𝐧𝐝 𝐈𝐓 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬
ALTEN is committed to meeting the expectations of its stakeholders and anticipating their requirements in the fields of innovation, R&D, and technological information systems.
Founded in 1988 and present in 30+ countries, the Group has established itself as the global leader in Engineering and IT Services. ALTEN operates with major players in the Aeronautics, Space, Defence, Naval & Security, Automotive, Rail & Mobility, Energy & Environment, Life Sciences – Health, Industrial Equipment & Electronics, Telecoms, Banking, Finance & Insurance, Retail & Services, Public Services & Government sectors.
OUR VISION: BUILDING TOMORROW’S WORLD TODAY
We are convinced that engineers are the architects who build tomorrow’s world today. As a global leader in Engineering and IT Services, we support businesses in their technological and sustainable transformation. We commit to making a positive impact over time and on people, pushing the boundaries of innovation, and always staying one step ahead. We are driven by one ambition: to think about the future in the present.
A LEADING GLOBAL TECHNOLOGY PARTNER
ALTEN is involved in all projects with a technological dimension for the Technical, Research & Development Divisions and IT Systems Divisions of major corporate, telecoms and service clients, requiring the involvement of high-level Consultant-Engineers. To achieve this, the Group has put in place a world-renowned technical organization of excellence.
🔹 12 Industries covered
🔹 21 Delivery Centers
🔹 6,500+ Clients
FULL COVERAGE OF TECHNOLOGIES
The Group covers a wide range of expertise in Engineering and IT Services in order to meet our clients’ needs.
We bring together and coordinate at the transnational level, specialists and consultants, experts in their profession who support our clients in their issues of digital transformation, innovation, product development, supply chain, etc.
