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Fortnum & Mason Logo Fortnum & Mason · IT - Administration

Infrastructure and Security Engineer

United Kingdom, London · Job Posted June 29, 2026
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Job Description

We are looking for a highly experienced and forward-thinking Senior Infrastructure & Security Engineer to play a pivotal strategic role in shaping and securing our technology landscape. This is a hands-on leadership position where you’ll drive the design, optimisation, and security of our hybrid infrastructure across cloud and on-prem environments. You’ll take ownership of delivering scalable, resilient, and high-performing systems that support business-critical operations. You will also play a key role in advancing our Zero Trust strategy, enhancing cyber resilience, and ensuring robust compliance with industry frameworks such as PCI DSS, NIST, and ISO 27001.

Job Responsibility

  • Act as a hands-on technical lead, driving continuous improvement across infrastructure and security
  • Design, implement, and optimise secure, scalable environments across servers, cloud, storage, and networks
  • Support and enhance a hybrid Microsoft ecosystem including Azure, Microsoft 365, Intune, Entra ID, SCCM, and SQL Server
  • Manage and maintain virtualised environments (VMware vSphere, ESXi, vCenter)
  • Ensure performance, resilience, and security of the Cisco Meraki network
  • Manage security tooling including SIEM platforms, endpoint protection, and identity access controls
  • Lead vulnerability assessments, penetration testing, and remediation activities
  • Strengthen cyber defence through proactive threat detection, incident response, and forensic analysis
  • Drive adoption of Zero Trust principles and secure identity management (RBAC, MFA)
  • Enhance security posture across Azure using tools such as Microsoft Defender for Cloud and Sentinel
  • Maintain compliance with regulatory and security frameworks (PCI DSS, ISO, NIST, GDPR)
  • Design and implement secure device deployments using Intune and Autopilot
  • Ensure consistent, secure configurations across retail, hospitality POS, and corporate devices
  • Manage patching, updates, and endpoint security across a complex estate
  • Lead disaster recovery planning, testing, and execution
  • Maintain backup solutions and ensure high availability of services
  • Partner with internal teams and third-party providers to deliver secure, high-performing services
  • Act as a trusted subject matter expert and advisor across the business
  • Mentor team members and promote a security-first culture
  • Ensure robust documentation, standards, and best practices are in place

Requirements

  • Strong experience with Microsoft infrastructure (Windows Server, Active Directory, Azure, Microsoft 365)
  • Deep understanding of networking technologies (LAN/WAN/WiFi, TCP/IP, firewalls, routing, switching – Cisco)
  • Experience with cloud security, IAM, and Azure environments
  • Knowledge of virtualisation technologies (VMware)
  • Scripting experience (PowerShell)
  • Familiarity with monitoring tools (e.g., SolarWinds, PRTG, Zabbix)
  • Experience in incident response, vulnerability management, and endpoint security
  • Understanding of backup, disaster recovery, and storage solutions

Nice to have

  • Certifications: CCNA/CCNP/CCIE, Azure (AZ-104, AZ-500), Microsoft certifications (MS-102, MCSA)
  • Knowledge of Zero Trust architecture and hybrid cloud environments
  • Experience with automation tools (Terraform, Azure CLI)
  • Familiarity with ITIL practices and service management tools
  • Experience managing third-party vendors and security compliance

What we offer

  • Competitive salary
  • Up to 40% store and restaurant discount
  • 25 days holiday + your birthday off
  • Subsidised staff restaurant using Fortnum’s own ingredients
  • Excellent pension scheme
  • Ongoing development and career progression opportunities
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