Senior Network Architect - Network Operations

Senior Network Architect – Network Operations

Position Overview:

NTT is hiring an energetic Senior Network Architect to join our Global Operations Center. Our Network Architects are responsible for managing the network infrastructure for large Enterprise companies. This Network Architect is a senior technical leader responsible for planning, design, policy management, monitoring, troubleshooting, and resolution of network events. Performs complex troubleshooting, resolution, and root cause analysis for network and cloud connectivity challenges.

This Senior Architect will work within a team of network engineers, security engineers, voice engineers, automation engineers, and suppliers to support NTT Global Network’s Customers.

• Responsible managing and securing large Enterprise networks including the planning, design, and operation of corporate Enterprise SDWAN, WAN, LAN, Wireless, VoIP, and Cloud services
• Provide Customer support with monitoring, incident response, troubleshooting, and resolution of network and cloud functionality issues
• Provide consulting to enterprise customer Architects and CIOs for IT network design, architecture, and compliance
• Manages complex network issues including high-impact incidents, service outages, chronic problems, and changes on circuit underlay, SD-WAN overlay, LAN, WLAN, NAC, DNS/DHCP/IPAM, and Cloud based network services
• Serve as escalation point with underlay ISPs and network vendors for complex network issues including incidents, service outages, maintenances, chronic problems, and changes
• Perform complex changes and maintenances on Enterprise infrastructure and NTT Backbone network
• Lead customer infrastructure optimization efforts including security hardening, code management, vulnerability management, configuration remediation, and standardization
• Perform configuration and code updates across WLAN, LAN, SD-WAN, NAC, DNS/DHCP/IPAM, SASE, SSE, and Cloud-based network services
• Implement network and security technology projects including design, proof of concept testing, and configuration for enterprise customers
• Perform on-premises WLAN, LAN, SD-WAN network infrastructure and SASE design reviews, develop detailed health assessments, remediation deployment plans, and remediation.
• Design and implement AI-driven automation to proactively identify performance issues, optimize routing, and reduce manual intervention across edge and cloud environments

• A minimum of seven years of experience as a network engineer, with strong hands‑on network, security, and application troubleshooting experience
• Detailed hands‑on technical experience in the operational support of SD-WAN, WAN, LAN, Switch, Wireless, VoIP, NAC, DNS, DHCP, IP Address Management, and Cloud‑based solutions
• Experience in supporting advanced MPLS technologies including L3
  
  VPN, L2
  
  VPN, and VPLS as well as Internet based WAN connectivity solutions including DIA, Broadband, Fixed Wireless, 4G/LTE/5G, and Satellite
• Experience managing leading network and security products including Cisco, Juniper, Aruba, Silverpeak, Palo Alto, Arista, and Fortinet
• Experience in Juniper MX and QFX series routers and switches, Cisco Nexus Switches particularly within large‑scale MPLS backbone network environments
• Expert level knowledge of IP networking routing protocols including OSPF, EIGRP, and BGP
• Strong understanding of network layer technologies and controls, including routing, segmentation, virtualization, and traffic engineering
• Expertise in Layer 2 technologies, including Spanning Tree Protocol (STP/rSTP), Link Aggregation (Port Channels, LAG/LACP), 802.1Q VLAN tagging, and 802.1p CoS/QoS for performance and reliability optimization.
• Experience with deployment and management of cloud infrastructure including AWS, MS Azure, Open Stack, Cloud Stack, Netskope, Prisma, Zscaler, and Virtual Private Cloud
• Experience managing SASE/SSE components including SDWAN, Cloud Firewall, Secure Web Gateway, Cloud Access Security Broker, Zero Trust Network Access, and DNS Security.
• Some experience with deployment and management of Firewall/IDS/IPS solutions including Cisco, Palo Alto, Fortinet, Juniper,…