Lead Security Architect Job at InstaDeep (London)

Job Description

We are looking for a Lead Security Architect to define and evolve the company’s reference security architecture across enterprise IT, cloud, data, product, and AI/ML environments. This is a senior leadership role for someone who can combine deep technical architecture capability with the ability to work across IT, Product, Cloud, Data, Legal, and Governance stakeholders. You will shape the company’s target-state architecture for Zero Trust, IAM, reverse proxy, segmentation, AI/ML trust boundaries, and secure integration patterns, while ensuring security architecture remains practical, scalable, and aligned to business priorities. You will play a central role in helping the company scale securely as an AI-first, cloud-first organisation operating in a regulated context with ISO 27001, NIS2, and sensitive data protection requirements.

Job Responsibility

Security architecture leadership
Define architecture principles and implementation patterns for Zero Trust, identity, authorization, trust boundaries, segmentation, secure integration, and secure access
Set the strategic direction for enterprise, cloud, and data security architecture
Define target-state architecture for Enterprise IT, Cloud, and Infrastructure, including IAM and identity trust models, reverse proxy and secure access architecture, network and data segmentation, cloud-native control patterns
Lead the development of architecture standards for secure integration between IT and product environments
Partner closely with Global IT Security Engineering on IAM, endpoint, VPN, reverse proxy, and access-tool integration
Define security architecture for AI/ML workflows, cloud-native data platforms, and ML pipelines
Establish and maintain AI/ML trust-boundary models
Support architecture and product teams on secure AI adoption
Shape standards for data governance and access design, ML pipeline trust boundaries, model and data protection patterns, secure use of AI assistants and AI-enabled workflows
Lead architecture review governance for high-risk initiatives
Facilitate and strengthen threat modeling and secure design review practices
Ensure that security principles are translated into reusable, practical design patterns
Create standards that can be adopted by architecture, infrastructure, DevOps, and product teams
Translate between technical architecture language and governance / compliance / business language
Work closely with Trust & Security teams, IT Platform and IT Security Engineering, Product and engineering leadership, Legal and GRC
Coach and influence architects and technical leaders across IT, Cloud, Product, and ML environments
Subject Matter Expert and role model in developing a Security Architecture Platform

Requirements

5+ years in enterprise and cloud security architecture
5+ years in identity, access, and network trust design
3+ years facilitating threat modeling and secure design reviews
Strong experience defining architecture standards and translating principles into practical patterns
Experience working across enterprise IT, cloud platforms, infrastructure, and product environments
Experience engaging with senior stakeholders across technical and non-technical functions
Security architecture at enterprise and cloud scale
Zero Trust and IAM architecture
Secure integration and trust-boundary design
Threat modeling and architecture review governance
Cloud-native security patterns
Data security and access-control design
Strong written communication and architecture documentation
Ability to coach and influence senior engineers and architects

Nice to have

Experience with AI/ML workflow security, data governance, and cloud-native data controls
Experience supporting organisations through ISO 27001, NIS2, or equivalent regulated environments
Experience in SaaS-heavy, cloud-first, or AI-first organisations
Familiarity with reverse proxy, secure remote access, endpoint and identity integration patterns
Ability to interface effectively with DevOps, MLOps, Infrastructure, and Product Engineering teams

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Lead Security Architect

Job Description

Job Responsibility

Requirements

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