Senior Data Networking SME — Remote

NTT DATA, Inc.

Greater London

Hybrid

GBP 90,000 - 120,000

Full time

3 days ago

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Job summary

NTT DATA Services in London, UK, seeks an experienced DATACOM SME to design, implement and optimize LAN/WAN, SD-WAN, VPN, and data center networking. This role collaborates with security, cloud, and operations teams to deliver reliable, scalable networking services.

The successful candidate will lead modernization efforts, provide expert guidance on network protocols, and mentor engineers while ensuring high availability and security across enterprise environments.

Qualifications

Typically 8+ years of experience in Network Infrastructure, Data Communication, and Enterprise Networking.
Strong experien ce in designing, implementing, managing, and troubleshooting large-scale enterprise network environments.
Experience supporting LAN, WAN, SD-WAN, VPN, Wireless Networking, Network Security technologies, Data Center, and Cloud Connectivity solutions.
Hands-on expertise with leading network technologies and platforms such as Cisco, Juniper, Aruba, Huawei, Fortinet, or equivalent.
Strong knowledge of network protocols including TCP/IP, BGP, OSPF, EIGRP, MPLS, DNS, DHCP, and routing/switching concepts.

Responsibilities

Design, implement, and maintain enterprise network infrastructure solutions.
Provide subject matter expertise for LAN, WAN, WLAN, SD-WAN, VPN, and Data Center networking technologies.
Lead network transformation and modernization initiatives.
Perform network capacity planning, performance tuning, and optimization.
Troubleshoot complex network issues and drive root cause analysis.
Collaborate with Infrastructure, Security, Cloud, and Application teams to ensure seamless connectivity and service delivery.
Support network security implementations including firewalls, NAC, segmentation, and secure access solutions.
Develop network architecture, standards, operational procedures, and technical documentation.
Participate in incident, problem, and change management processes.
Evaluate new networking technologies and provide recommendations for continuous improvement.