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Picture More Ltd
Senior AI Security Architect

Senior AI Security Architect

On site

London, United kingdom

Senior

Full Time

07-01-2026

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Skills

Leadership Architecture Security Architecture Cloud Architecture Azure

Job Specifications

We're working with our client, a leading global law firm, to recruit a Senior Manager-level AI Security Architect to take ownership of the security architecture for its enterprise AI ecosystem, including a flagship internal AI platform used across the firm.
Sitting within the Digital Trust & AI Security function, this role is central to enabling secure innovation in a highly regulated legal environment. You'll combine deep technical expertise with senior-level influence, helping to shape how AI is designed, deployed, and governed across the firm.
You'll be responsible for:
Owning and designing the security architecture for enterprise AI platforms and workloads
Leading Identity and Access Management architecture for AI, with a strong focus on machine and workload identities
Defining and embedding AI security governance, standards, and secure-by-design principles
Providing hands-on architectural leadership across Azure and Microsoft Entra ID
Partnering with engineering, cloud, and product teams to integrate security into AI development and delivery
Acting as a senior escalation point for AI, IAM, and security architecture decisions
Supporting audit, regulatory, and client assurance requirements related to AI security
Influencing senior stakeholders and mentoring technical teams
What you'll bring:
Deep expertise across IAM, including AD, Entra ID, PAM, IGA, Conditional Access, and machine identities
Strong Microsoft security and cloud architecture background
Experience securing AI platforms or complex cloud-based systems
Confidence operating at Senior Manager level, with the ability to influence and lead
Hybrid: Min. 2 days per week in the office
Desirable: Legal or professional services experience, security architecture certifications (CISSP, SABSA, TOGAF), Zero Trust, multi-cloud exposure, or application security.
Apply now to help shape secure, enterprise-scale AI within a top-tier legal environment.

About the Company

Corporate Photography: People * Events * E-Commerce Picture More Business(tm) is photographer Michael Nathaniel Meyer's Brooklyn, New York based commercial photography studio. PMB specializes in photographing real people on location to support businesses' communications initiatives. Core services include executive portraits, websites, annual reports, capability brochures, and corporate and non-profit events. A secondary speciality is tabletop product photography for e-commerce. Clients include Adams Street Foundation, Bevera... Know more