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. Überblick: Als Network Engineer L3 sind Sie verantwortlich für die Planung, Implementierung und den Betrieb komplexer WLAN-Infrastrukturen sowie die Bereitstellung von Managed Networking Services für unsere Kunden. Sie agieren als technischer Experte für drahtlose Netzwerke und unterstützen den Betrieb in hochverfügbaren Enterprise-Umgebungen. Hauptaufgaben: Design, Konfiguration und Wartung von WLAN-Netzwerken (Access Points, Controller, SSID-Management). Implementierung und Betrieb von Managed Networking Services (LAN/WLAN), inkl. Monitoring, Incident- und Change-Management. Analyse und Behebung von Netzwerkproblemen auf L3-Ebene (Routing, Switching, Wireless). Zusammenarbeit mit Service Management und Kunden zur Sicherstellung von SLAs. Dokumentation von Netzwerkdesigns, WLAN-Heatmaps und Übergabeprozessen. Unterstützung bei Migrationen und Rollouts für WLAN- und Managed Services-Projekte. Sicherstellung von Sicherheitsrichtlinien (802.1X, WPA3, Privileged Access Management). Erforderliche Kenntnisse & Fähigkeiten: Wireless-Technologien : WLAN-Standards (802.11a/b/g/n/ac/ax), RF-Design, Roaming, QoS. Netzwerkprotokolle : VLAN, STP, Routing-Protokolle (OSPF, BGP). Technologien : Cisco Wireless (Catalyst, Meraki), LAN/WLAN Controller. Managed Services Tools : ServiceNow, ITSM-Integration Security : 802.1X, NAC, Netzwerksegmentierung. Sprachen : Deutsch und Englisch (fließend). Erforderliche Zertifizierungen: Cisco Certified Network Professional ( CCNP Enterprise Wireless ) ITIL Foundation (für Managed Services Prozesse) Workplace type : 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 .