Publiée 3 juin 2026
Architecture Reseau et Securité F/H
The Nippon Telegraph and Telephone Corporation (NTT)
Paris, Île-de-France 75000, France
CDI
Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion - it's a place where you can grow, belong and thrive.
Architecture Reseau et Seurité L4
Implémentation & Déploiement
Exploitation & Expertise
Sécurité & Conformité
Avant-vente & Conseil (selon contexte)
Compétences techniques requises
Réseau
Sécurité
Load Balancing
Solutions & Outils
Certifications
Profil recherché
Soft Skills
Évolution possible
Workplace type:
Hybrid Working
About NTT DATA
NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each year in R&D.
Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.
Third parties fraudulently posing as NTT DATA recruiters
NTT DATA recruiters will never ask job seekers or candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties who may attempt to impersonate NTT DATA recruiters-whether in writing or by phone-in order to deceptively obtain personal data or money from you. All email communications from an NTT DATA recruiter will come from an @nttdata.com email address. If you suspect any fraudulent activity, please contact us.
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion - it's a place where you can grow, belong and thrive.
Architecture Reseau et Seurité L4
- Concevoir des architectures réseau et sécurité complexes (LAN, WAN, DC, SD-WAN, Sécurité)
- Rédiger et maintenir la documentation HLD / LLD (design, matrices de flux, schémas, procédures)
- Participer aux choix technologiques et aux revues d'architecture
- Réaliser des audits d'infrastructures et proposer des plans d'amélioration
Implémentation & Déploiement
- Déployer et intégrer des solutions réseau et sécurité de bout en bout
- Piloter des projets techniques à forte valeur ajoutée (multi-sites, environnements critiques)
- Assurer l'intégration avec les environnements existants (on-prem, hybride, cloud)
Exploitation & Expertise
- Intervenir en support N3/N4 sur des incidents complexes
- Être le point d'escalade technique pour les équipes opérationnelles
- Garantir la disponibilité, la performance et la sécurité des infrastructures
Sécurité & Conformité
- Définir et implémenter les politiques de sécurité réseau
- Gérer les flux, VPN, règles de sécurité et mécanismes de segmentation
- Contribuer aux démarches de sécurité by design
Avant-vente & Conseil (selon contexte)
- Support aux équipes avant-vente (RFP/RFI, soutenances techniques)
- Participation aux comités techniques clients
- Rôle de conseiller expert auprès des clients stratégiques
Compétences techniques requises
Réseau
- Architectures LAN / WAN / Datacenter
- SD-WAN (design, déploiement, exploitation)
- Routage avancé : BGP, OSPF
- Haute disponibilité, redondance, QoS
Sécurité
- Palo Alto Networks (firewalls, politiques de sécurité, VPN)
- Segmentation réseau, filtrage, sécurisation des flux
- Intégration sécurité dans les architectures globales
Load Balancing
-
F5 BIG-IP LTM
- Virtual Servers, Pools, iRules (niveau avancé)
- Haute disponibilité et performances applicatives
Solutions & Outils
-
Cisco Catalyst Center (DNA Center)
- Automatisation, assurance réseau, gestion du lifecycle
- Environnements hybrides et multi-sites
Certifications
- Nécéssaire: CCIE
-
Appréciés:
- Palo Alto (PCNSE)
- F5 LTM Certified (CA/CTS)
- Cisco complémentaires (SD-WAN, Security)
Profil recherché
- Ingénieur diplômé (Bac+5 ou équivalent)
- Expérience significative (8-10 ans minimum) en réseaux & sécurité
- Capacité à travailler sur des environnements critiques et complexes
- Forte capacité d'analyse, d'autonomie et de prise de décision
- Excellentes compétences rédactionnelles (documents d'architecture)
- Français courant, anglais professionnel requis
Soft Skills
- Leadership technique et rôle de mentor
- Sens du service client et posture de consultant
- Capacité à vulgariser des sujets complexes
- Rigueur, méthode et esprit de synthèse
Évolution possible
- Architecte Réseau & Sécurité
- Lead Technique / Référent d'offre
- Manager technique ou Practice Leader
Workplace type:
Hybrid Working
About NTT DATA
NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each year in R&D.
Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.
Third parties fraudulently posing as NTT DATA recruiters
NTT DATA recruiters will never ask job seekers or candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties who may attempt to impersonate NTT DATA recruiters-whether in writing or by phone-in order to deceptively obtain personal data or money from you. All email communications from an NTT DATA recruiter will come from an @nttdata.com email address. If you suspect any fraudulent activity, please contact us.
