Lead Security Architect

Instadeep · London, United Kingdom
Location
London, United Kingdom
Seniority
Lead
Salary
Not stated
Posted
19 May 2026

Verified open 31 Oct 2026 · Source: Company careers page

About the role

InstaDeep, founded in 2014, is a pioneering AI company at the forefront of innovation. With strategic offices in major cities worldwide, including London, Paris, Berlin, Tunis, Kigali, Cape Town, New York, and San Francisco, InstaDeep collaborates with giants like Google DeepMind and prestigious educational institutions like MIT, Stanford, Oxford, UCL, and Imperial College London. We are a Google Cloud Partner and a select NVIDIA Elite Service Delivery Partner. We have been listed among notable players in AI, fast-growing companies, and Europe's 1000 fastest-growing companies in 2022 by Statista and the Financial Times. Our recent acquisition by BioNTech has further solidified our commitment to leading the industry. Join us to be a part of the AI revolution!

About the role 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.

What you will do
Security architecture leadership

Own the company’s reference security architecture and target-state security patterns across enterprise IT, infrastructure, cloud, data, and product environments 
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

Cloud, IAM, and Zero Trust design

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

AI/ML and data security architecture

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

Architecture governance and design assurance

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

Stakeholder leadership

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

Typical deliverables

Security reference architecture 
Architecture review records and decision logs 
Threat models for high-risk systems and initiatives 
Zero Trust design patterns 
IAM and trust-boundary architecture models 
Data and AI trust-boundary models 
Data-access design standards 
Secure implementation patterns aligned with architecture standards

What we are looking for
Essential experience

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

Essential skills

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

Strongly preferred

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

Expected competence
Security architecture: Expert
Zero Trust / IAM design: Expert
Threat modeling: Advanced
Stakeholder leadership: Advanced

How you work
You are likely to be someone who:

thinks in systems, not just controls 
can balance strategic design with pragmatic delivery 
is comfortable influencing without always owning implementation 
can create clarity in complex multi-stakeholder environments 
can make architecture standards usable by engineers, not just readable by auditors

Training and skill development
We support continued development in this role through:

SABSA / CCSP-style learning paths or equivalent enterprise architecture development 
regular updates on NIST Zero Trust and cloud architecture patterns 
AI system and data-governance design training 
ongoing exposure to architecture, governance, and regulatory developments relevant to cloud, AI, and security

Why join us
This role offers the opportunity to shape the security architecture of a modern company operating at the intersection of:

AI-first product and engineering practices 
cloud-native infrastructure 
sensitive data protection 
regulatory and audit readiness 
Zero Trust transformation

You will help define how security architecture enables the company to scale in a way that is trusted, resilient, and practical.

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