NTT Global Networks
Senior Network Architect - Network Operations
NTT Global Networks, Greenwood Village, Colorado, United States
Senior Network Architect – Network Operations
NTT is hiring an energetic
Senior Network Architect
to join our Global Operations Center. Our Network Architects manage the network infrastructure for large Enterprise companies and serve as senior technical leaders responsible for planning, design, policy management, monitoring, troubleshooting, and resolution of network events. This role performs complex troubleshooting, resolution, and root‑cause analysis for network and cloud connectivity challenges, working with team members—including security engineers, voice engineers, automation engineers, and suppliers—to support NTT Global Network’s customers.
Primary Responsibilities
Responsible for managing and securing large Enterprise networks, including the planning, design, and operation of corporate SDWAN, WAN, LAN, Wireless, VoIP, and Cloud services.
Provide customer support with monitoring, incident response, troubleshooting, and resolution of network and cloud functionality issues.
Consult with enterprise customer architects and CIOs on IT network design, architecture, and compliance.
Manage 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.
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 plans.
Design and implement AI‑driven automation to proactively identify performance issues, optimize routing, and reduce manual intervention across edge and cloud environments.
Required Skills and Experience
A minimum of seven years of experience as a network engineer with strong hands‑on networking, security, and application troubleshooting expertise.
Hands‑on technical experience in operational support of SD‑WAN, WAN, LAN, Switch, Wireless, VoIP, NAC, DNS, DHCP, IP Address Management, and cloud‑based solutions.
Experience supporting advanced MPLS technologies (L3VPN, L2VPN, VPLS) and internet‑based WAN connectivity solutions (DIA, broadband, fixed wireless, 4G/LTE/5G, satellite).
Experience managing leading network and security products (Cisco, Juniper, Aruba, Silverpeak, Palo Alto, Arista, Fortinet).
Experience with Juniper MX and QFX series routers and switches, and Cisco Nexus switches, particularly within large‑scale MPLS backbone network environments.
Expert knowledge of IP routing protocols (OSPF, EIGRP, BGP).
Strong understanding of network‑layer technologies and controls—routing, segmentation, virtualization, traffic engineering.
Expertise in Layer 2 technologies (STP/rSTP, LAG/LACP, 802.1Q VLAN tagging, 802.1p CoS/QoS).
Experience deploying and managing cloud infrastructure (AWS, MS Azure, OpenStack, CloudStack, Netskope, Prisma, Zscaler, VPNs, VPC).
Experience managing SASE/SSE components (SD‑WAN, Cloud Firewall, Secure Web Gateway, CASB, Zero Trust Network Access, DNS Security).
Some experience deploying and managing Firewall/IDS/IPS solutions (Cisco, Palo Alto, Fortinet, Juniper, Checkpoint).
Experience with IPSec, secure network connectivity solutions, VPN technologies (site‑to‑site, remote access), load‑balancing, network access control.
Experience with zero‑trust setups and AAA/TACACS frameworks (segmentation, single sign‑on, MFA, AD integration).
Ability to perform remote packet captures and packet‑capture analysis.
Experience with network automation frameworks, API programmability (REST, RESTCONF, NETCONF).
Knowledge of automation and scripting languages (Python, Perl).
Ability to engage in technical discussions with enterprise customer network and security architects.
Additional Requirements
Bachelor of Science degree in Computer Science, Engineering, or equivalent experience.
Certifications such as CCNA, CCNP, CCIE, or CCVP.
Passionate about customer support.
Familiarity with enterprise security controls and security best practices.
Track record of delivering results quickly and with quality.
Willingness to travel to customer locations.
Prior experience working on global teams that provide 24×7 support to customers.
Ability to work effectively with customers, senior management, staff, and vendors.
Excellent communication, presentation, analytical, and problem‑solving skills.
About NTT Global Networks NTT Global Networks is a leader in software‑defined managed network and cloud security services for global enterprises, focused on delivering end‑to‑end connectivity and unmatched customer support. Our global expertise includes the world’s largest SaaS and cloud providers. We are a partner of choice for enterprises that require an optimized, purpose‑built network and cloud security solution that empowers digital transformation and achieves true business outcomes.
Managed SD‑WAN
helps enterprises optimize global performance.
Managed SD‑LAN
offloads day‑to‑day management so IT teams can focus on business.
Managed SASE, SSE services
(secured gateway, cloud‑based network services) secure internet and web traffic without extra technology or infrastructure.
NTT Global Networks offers attractive compensation and a competitive benefits package, including health, dental, vision, disability and life insurance, 401(k) with employer match, flexible spending accounts, HSA, company‑paid holidays, and generous paid time off.
Base Pay Range $130,000.00/yr – $150,000.00/yr
Seniority Level Mid‑Senior level
Employment Type Full‑time
Industries Computer and Network Security and Telecommunications
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Senior Network Architect
to join our Global Operations Center. Our Network Architects manage the network infrastructure for large Enterprise companies and serve as senior technical leaders responsible for planning, design, policy management, monitoring, troubleshooting, and resolution of network events. This role performs complex troubleshooting, resolution, and root‑cause analysis for network and cloud connectivity challenges, working with team members—including security engineers, voice engineers, automation engineers, and suppliers—to support NTT Global Network’s customers.
Primary Responsibilities
Responsible for managing and securing large Enterprise networks, including the planning, design, and operation of corporate SDWAN, WAN, LAN, Wireless, VoIP, and Cloud services.
Provide customer support with monitoring, incident response, troubleshooting, and resolution of network and cloud functionality issues.
Consult with enterprise customer architects and CIOs on IT network design, architecture, and compliance.
Manage 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.
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 plans.
Design and implement AI‑driven automation to proactively identify performance issues, optimize routing, and reduce manual intervention across edge and cloud environments.
Required Skills and Experience
A minimum of seven years of experience as a network engineer with strong hands‑on networking, security, and application troubleshooting expertise.
Hands‑on technical experience in operational support of SD‑WAN, WAN, LAN, Switch, Wireless, VoIP, NAC, DNS, DHCP, IP Address Management, and cloud‑based solutions.
Experience supporting advanced MPLS technologies (L3VPN, L2VPN, VPLS) and internet‑based WAN connectivity solutions (DIA, broadband, fixed wireless, 4G/LTE/5G, satellite).
Experience managing leading network and security products (Cisco, Juniper, Aruba, Silverpeak, Palo Alto, Arista, Fortinet).
Experience with Juniper MX and QFX series routers and switches, and Cisco Nexus switches, particularly within large‑scale MPLS backbone network environments.
Expert knowledge of IP routing protocols (OSPF, EIGRP, BGP).
Strong understanding of network‑layer technologies and controls—routing, segmentation, virtualization, traffic engineering.
Expertise in Layer 2 technologies (STP/rSTP, LAG/LACP, 802.1Q VLAN tagging, 802.1p CoS/QoS).
Experience deploying and managing cloud infrastructure (AWS, MS Azure, OpenStack, CloudStack, Netskope, Prisma, Zscaler, VPNs, VPC).
Experience managing SASE/SSE components (SD‑WAN, Cloud Firewall, Secure Web Gateway, CASB, Zero Trust Network Access, DNS Security).
Some experience deploying and managing Firewall/IDS/IPS solutions (Cisco, Palo Alto, Fortinet, Juniper, Checkpoint).
Experience with IPSec, secure network connectivity solutions, VPN technologies (site‑to‑site, remote access), load‑balancing, network access control.
Experience with zero‑trust setups and AAA/TACACS frameworks (segmentation, single sign‑on, MFA, AD integration).
Ability to perform remote packet captures and packet‑capture analysis.
Experience with network automation frameworks, API programmability (REST, RESTCONF, NETCONF).
Knowledge of automation and scripting languages (Python, Perl).
Ability to engage in technical discussions with enterprise customer network and security architects.
Additional Requirements
Bachelor of Science degree in Computer Science, Engineering, or equivalent experience.
Certifications such as CCNA, CCNP, CCIE, or CCVP.
Passionate about customer support.
Familiarity with enterprise security controls and security best practices.
Track record of delivering results quickly and with quality.
Willingness to travel to customer locations.
Prior experience working on global teams that provide 24×7 support to customers.
Ability to work effectively with customers, senior management, staff, and vendors.
Excellent communication, presentation, analytical, and problem‑solving skills.
About NTT Global Networks NTT Global Networks is a leader in software‑defined managed network and cloud security services for global enterprises, focused on delivering end‑to‑end connectivity and unmatched customer support. Our global expertise includes the world’s largest SaaS and cloud providers. We are a partner of choice for enterprises that require an optimized, purpose‑built network and cloud security solution that empowers digital transformation and achieves true business outcomes.
Managed SD‑WAN
helps enterprises optimize global performance.
Managed SD‑LAN
offloads day‑to‑day management so IT teams can focus on business.
Managed SASE, SSE services
(secured gateway, cloud‑based network services) secure internet and web traffic without extra technology or infrastructure.
NTT Global Networks offers attractive compensation and a competitive benefits package, including health, dental, vision, disability and life insurance, 401(k) with employer match, flexible spending accounts, HSA, company‑paid holidays, and generous paid time off.
Base Pay Range $130,000.00/yr – $150,000.00/yr
Seniority Level Mid‑Senior level
Employment Type Full‑time
Industries Computer and Network Security and Telecommunications
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