Lead Security Architect
InstaDeep
IT
London, UK
Posted on Apr 20, 2026
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.
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 will you 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
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
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
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
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:
- 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 and level
Security architecture - Expert level
Zero Trust / IAM design - Expert level
Threat modeling - Advanced level
Stakeholder leadership - Advanced level
Zero Trust / IAM design - Expert level
Threat modeling - Advanced level
Stakeholder leadership - Advanced level
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
- 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
- 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
- cloud-native infrastructure
- sensitive data protection
- regulatory and audit readiness
- Zero Trust transformation
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:
AI-first product and engineering practices:
You will help define how security architecture enables the company to scale in a way that is trusted, resilient, and practical.
Our commitment to our people:
We empower individuals to celebrate their uniqueness here at InstaDeep. Our team comes from all walks of life, and we’re proud to continue encouraging and supporting applicants from underrepresented groups across the globe. Our commitment to creating an authentic environment comes from our ability to learn and grow from our diversity, and how better to experience this than by joining our team? We operate on a hybrid work model with guidance to work at the office 3 days per week to encourage close collaboration and innovation. We are continuing to review the situation with the well-being of InstaDeepers at the forefront of our minds.
Right to work:
Please note that you will require the legal right to work without visa sponsorship in the location you are applying for. We do not sponsor work visas.