Senior Cyber Security Architect & AI Security Lead

DGH Recruitment Limited; Greater London; On-site; GBP 110,000 - 150,000; Full time

Job summary

DGH Recruitment are recruiting on behalf of a leading client in the Accountancy industry who require a Cyber Security Architect & Engineering Lead to join the firm in London. You will translate security strategy into secure designs, practical controls, technical standards and measurable outcomes.

Define and maintain enterprise security architecture across identity, endpoints, networks, cloud, SaaS, data, applications and APIs.

Qualifications

• Extensive cyber security experience in security architecture or engineering roles.
• Hands-on design and implementation of security controls in a Microsoft-centric environment.
• Experience securing generative AI and AI agents, and data-driven applications.
• Strong knowledge of identity security, Zero Trust, cloud security and API security.
• Experience in incident response, threat hunting, and vulnerability management.
• Ability to automate security using Python, PowerShell, or IaC.

Responsibilities

• Define and maintain enterprise security architecture across identity, endpoints, networks, cloud, data and applications.
• Act as the technical lead for AI security, collaborating with business, legal and risk stakeholders.
• Design secure architectures for Microsoft 365 Copilot, Copilot Studio, Azure AI services and model integrations.
• Own the security control catalogue and map objectives to architecture patterns and testing methods.
• Serve as escalation point for high-severity incidents and participate in on-call arrangements.
• Support due diligence for acquisitions with clear risk assessments and required investments.

Skills

Security architecture

Security engineering

Identity security

Zero Trust

Cloud security

Endpoint security

Application security

API security

DevSecOps

AI security

Incident response

Threat hunting

Automation

Python

PowerShell

Azure

Microsoft 365

Entra ID

Tools

Azure

Microsoft Entra ID

Defender XDR

Sentinel

Microsoft Purview

Azure Functions

Job description

DGH Recruitment are recruiting on behalf of a leading client in the Accountancy industry who require a Cyber Security Architect & Engineering Lead to join the firm in London. You will translate security strategy into secure designs, practical controls, technical standards and measurable outcomes.

Define and maintain enterprise security architecture across identity, endpoints, networks, cloud, SaaS, data, applications and APIs.