DATACOM SME (Data Communication Subject Matter Expert

NTT
Madrid
Workplace: OnsiteFull timeFunction: IT Operations (Systems/Network Admin)Experience: 8+ yearsSkills: ["Analytical thinking","Communication","Stakeholder management","Troubleshooting","Mentoring"]

Provide technical leadership for enterprise networking and data communication environments, designing and maintaining complex infrastructure while ensuring high availability, performance, scalability, and security. Own subject-matter expertise across LAN, WAN, WLAN, SD-WAN, VPN, and data center networking, including capacity planning, performance tuning, and root-cause troubleshooting. Coordinate with infrastructure, security, cloud, and application teams, and support incident/problem/change processes, architecture standards, and automation-driven modernization.

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FursaFursa
NTT
NTT
3 days ago

DATACOM SME (Data Communication Subject Matter Expert

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Job Summary

Provide technical leadership for enterprise networking and data communication environments, designing and maintaining complex infrastructure while ensuring high availability, performance, scalability, and security. Own subject-matter expertise across LAN, WAN, WLAN, SD-WAN, VPN, and data center networking, including capacity planning, performance tuning, and root-cause troubleshooting. Coordinate with infrastructure, security, cloud, and application teams, and support incident/problem/change processes, architecture standards, and automation-driven modernization.
Location: Madrid
Workplace: Onsite
Employment Type: Full time
Job Function: IT Operations (Systems/Network Admin)
Seniority: Mid level

Key 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, optimization, and root-cause analysis for complex issues.
  • •Collaborate with infrastructure, security, cloud, and application teams; develop architecture/standards/technical documentation and participate in incident/problem/change management.

Key Requirements

  • •Typically 8+ years of experience in network infrastructure, data communication, and enterprise networking.
  • •Strong experience 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 networking 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.
Experience:8+ yearsEnterprise networkingNetwork infrastructureData center networkingCloud networkingNetwork securityGlobal enterprise environments
Skills:Analytical thinkingCommunicationStakeholder managementTroubleshootingMentoring
Certifications:CCNPCCIEJNCIPJNCIE
Tech Stack:CiscoJuniperArubaHuaweiFortinetLANWANWLANSD-WANVPNData Center networkingTCP/IPBGPOSPFEIGRPMPLSDNSDHCPRoutingSwitching

Company Brief

NTT
Dimension Data, operating under NTT Ltd, provides managed IT services, cloud and data center solutions, networking, cybersecurity, and digital transformation services to enterprise customers worldwide.
Industry: Professional Services
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Established Company
Valuation: Public Company (Market Cap in USD)
Headquarters: London, United Kingdom
Founded: 1983
WebsiteLinkedIn