Senior Cisco Network Architect - Data Center & SDN Lead

NTT Ltd.; Wallisellen; On-site; CHF 140,000 - 180,000; Full time

Benefits offered by this job

Remote-friendly conditions

Job summary

NTT DATA in Winterthur, Switzerland is seeking an experienced Network Architect (Cisco) to provide technical leadership and governance for enterprise networks. The role focuses on designing resilient L2/L3 architectures, standardizing on BGP/OSPF/EVPN/VXLAN, and guiding data center, cloud-connected, and hybrid infrastructures.

The candidate will lead major incident resolution, collaborate with security and cloud teams, and ensure scalable, secure, and highly available network services aligned

Qualifications

• Extensive experience designing and supporting enterprise and data center networks.
• Deep expertise in Cisco networking technologies including routing, switching, and high-availability architectures.
• Strong knowledge of BGP, OSPF, EVPN/VXLAN, SDN technologies and modern network design principles.
• Experience with Cisco Nexus platforms and data center networking environments.
• Familiarity with Perle IOLAN console server solutions and operational practices.
• Proven ability to lead complex technical escalations and architecture engagements.
• Strong analytical, communication, and stakeholder management skills.

Responsibilities

• Design, implement, and govern enterprise L2/L3 network architectures.
• Define and maintain network standards for BGP, OSPF, EVPN/VXLAN, high availability, and SDN-integrated environments.
• Provide architectural guidance for data center, cloud-connected, and hybrid network infrastructures.
• Lead complex network troubleshooting, root cause analysis, and major incident resolution activities.
• Develop resilient network design patterns and operational frameworks for implementation and support teams.
• Support and optimize Cisco Nexus switching environments and Perle IOLAN infrastructure.
• Review network performance, scalability, resilience, and capacity requirements.
• Collaborate with security, cloud, compute, and storage teams for end-to-end integration.
• Maintain architecture documentation, standards, governance processes, and best practices.

Skills

Cisco networking

Data center design

Network architecture leadership

BGP/OSPF/EVPN/VXLAN

SDN technologies

Stakeholder management

Tools

Cisco Nexus

Perle IOLAN

Job description

NTT DATA in Winterthur, Switzerland is seeking an experienced Network Architect (Cisco) to provide technical leadership and governance for enterprise networks. The role focuses on designing resilient L2/L3 architectures, standardizing on BGP/OSPF/EVPN/VXLAN, and guiding data center, cloud-connected, and hybrid infrastructures.

The candidate will lead major incident resolution, collaborate with security and cloud teams, and ensure scalable, secure, and highly available network services aligned