Senior Network Architect

Avance Consulting
FullTime London, England Computer Occupations
Posted:
January 30, 2026
Location:
London, England, United Kingdom

Job Description

Senior Network Security SME and design authority responsible for network segmentation and Zero Trust initiatives across on-prem and hybrid cloud environments. This role owns architecture decisions, enforcement strategy, and senior customer engagement for a large enterprise environment.

Your responsibilities:

• Act as Network Security Design Authority for segmentation and Zero Trust.

• Design, implement, and optimize network segmentation using Guardicore and Illumio.

• Own User-to-Server (U2S) and Server-to-Server (S2S) traffic controls.

• Lead Guardicore → Illumio transition and future-state architecture.

• Drive segmentation standards, governance, and operational handover.

• Serve as primary technical interface to senior customer stakeholders.

• Manage escalations related to enforcement, legacy dependencies, and risk trade-offs.

• Act as a Subject Matter Expert (SME) in analyzing and visualizing application traffic to understand...

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Job Overview

Job Type: FullTime
Location: London, United Kingdom
Posted: January 30, 2026
Deadline: March 11, 2026