Enterprise Network Design Architect - LAN, WAN & Wi‑Fi

Adecco; City Of London; On-site; GBP 72,000 - 88,000; Full time

Job summary

Our client in Central London is seeking a Network Design Engineer to own the design and architecture of enterprise network solutions. You will lead across LAN, WAN and Wireless, translating business requirements into scalable, secure designs and producing high-quality documentation.

You will collaborate with stakeholders, delivery teams and vendors, provide technical leadership, and guide projects from discovery through implementation, including design governance and risk assessment.

Qualifications

• Extensive experience designing enterprise LAN/WAN/Wi‑Fi networks.
• Strong routing and switching knowledge: BGP, OSPF, VRRP, STP.
• Experience designing secure network architectures (firewalls, VPN, NAC).
• Proven ability to produce professional design docs (HLDs/LLDs).
• Experience with Ekahau Wi‑Fi surveys and predictive modelling.
• Ability to translate business needs into scalable designs.
• Excellent stakeholder management and presentation skills.

Responsibilities

• Lead design of enterprise LAN, WAN, WLAN and security solutions.
• Produce High-Level and Low-Level Designs and topology diagrams.
• Conduct network discovery, requirements gathering workshops.
• Perform capacity planning, resilience assessments and roadmapping.
• Develop migration and transformation strategies with minimal disruption.
• Create BoMs, statements of work and technical proposals.
• Provide governance and design assurance throughout projects.

Skills

Enterprise LAN/WAN/Wi-Fi design

Routing & Switching

Security architecture design

Design documentation

Network audits

Ekahau Wi-Fi surveys

Bills of Materials

Stakeholder management

Pre-sales support

Tools

Ekahau

HLD/LLD tooling

Job description

Our client in Central London is seeking a Network Design Engineer to own the design and architecture of enterprise network solutions. You will lead across LAN, WAN and Wireless, translating business requirements into scalable, secure designs and producing high-quality documentation.

You will collaborate with stakeholders, delivery teams and vendors, provide technical leadership, and guide projects from discovery through implementation, including design governance and risk assessment.