Networking and Security Technical Services Lead

NTT
London
Workplace: OnsiteFull timeFunction: Administration & Executive AssistanceEducation: bachelorsSkills: ["Verbal communication","Customer-focused","Problem-solving","Coaching","Technical ownership"]

Lead the design and hands-on implementation of complex multi-vendor network and security solutions across greenfield and brownfield environments. Create HLD/LLD documentation, implementation plans, and change records aligned to change management. Author operational runbooks, validate designs with PoCs and pre/post verification, and diagnose multi-layer network and security incidents with expert escalation support. Coordinate engineers and mentor junior staff while partnering with project managers, architects, and operations to deliver safely.

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NTT
NTT
1 day ago

Networking and Security Technical Services Lead

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Last checked: 15 hours agoStatus: Live

Job Summary

Lead the design and hands-on implementation of complex multi-vendor network and security solutions across greenfield and brownfield environments. Create HLD/LLD documentation, implementation plans, and change records aligned to change management. Author operational runbooks, validate designs with PoCs and pre/post verification, and diagnose multi-layer network and security incidents with expert escalation support. Coordinate engineers and mentor junior staff while partnering with project managers, architects, and operations to deliver safely.
Location: London
Workplace: Onsite
Employment Type: Full time
Job Function: Administration & Executive Assistance
Seniority: Manager level

Key Responsibilities

  • •Lead the design and hands-on implementation of complex multi-vendor network and security solutions across different environments.
  • •Produce HLD/LLD documentation and implementation plans with change records suitable for internal review and stakeholder sign-off.
  • •Author operational runbooks for handover and ongoing support, and perform design validation with PoC testing and pre/post verification.
  • •Configure, deploy, and optimize network and security infrastructure across vendor platforms and technology domains.
  • •Coordinate engineers/technicians, provide expert technical escalation support for complex incidents, and coach/mentor more junior team members.

Key Requirements

  • •Advanced experience in technical implementation engineering for networking technologies.
  • •Advanced experience engaging clients and conducting presentations.
  • •Strong report-writing and project management experience with alignment to change management processes.
  • •Advanced hands-on knowledge of networking technologies including routing, switching, wireless, and core/access layers.
  • •Professional-level networking and security certifications (e.g., Cisco, Juniper, Aruba, F5; CCIE/JNCIE/ACMP) and a bachelor’s degree or equivalent in IT/Computing or related fields.
Education:Bachelor's in Information Technology or Computing (or related field)
Skills:Verbal communicationCustomer-focusedProblem-solvingCoachingTechnical ownership
Certifications:CCIEJNCIEACMPCisco Dev Net
Tech Stack:CiscoJuniperArubaF5CCIEJNCIEACMPCisco Dev NetRoutingSwitchingWirelessSDI distributionCore and access layersHLDLLDPoC testingChange managementOperational runbooks

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