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About the Role

Scale AI is seeking an International Head of Security to own and unify the company's security strategy across its non-US affairs, focusing on Global Public Sector and non-US Enterprise deals. This role involves driving execution, customer engagements, and compliance with international frameworks while aligning with global security architecture. The ideal candidate is a builder who views security as a product feature and can enhance both defensive maturity and ambition in frontier AI security.

Responsibilities

Execute the Global Security Strategy Across International Markets
Drive execution of Scale's multi-year secure-by-default roadmap across non-US markets, surfacing regional needs into global architecture decisions.
Translate regional regulatory requirements (GDPR, ISO 27001/27018, SOC 2, UK Cyber Essentials Plus, EU AI Act, NIS2, and country-specific data residency / sovereign-cloud rules) into concrete engineering controls.
Track regional security metrics and accountability, and represent the international perspective in global prioritisation, audits, and roadmap reviews.
Lead Regional Security Engineering & Threat Detection
Own the regional execution of identity, fine-grained RBAC, secrets management, CI/CD hardening, encryption, logging, and infrastructure protection with a particular focus on cross-border data flows and in-region telemetry.
Stand up high-fidelity detection and response capabilities that meet local time zone coverage, breach-notification timelines, and regulator expectations.
Drive systemic risk reduction through platform-level controls, partnering with the global security engineering team rather than building parallel stacks.
Secure Products, Data, and AI Systems for International Customers
Ensure enterprise-grade protection of customer data, proprietary datasets, and AI assets across regional deployments, including support for in-region processing, encryption with customer-managed keys, and data-localisation commitments.
Design and enforce robust multi-tenant isolation, fine-grained RBAC, and privilege lifecycle management across customer environments serving international enterprises and public sector buyers.
Address AI-specific attack surfaces; prompt injection, tool abuse in agentic workflows, data exfiltration, and model/data integrity risks.
Champion secure SDLC practices, threat modeling, and code review standards within FDE teams.
Lead Insider Risk & Contributor Integrity Across International Populations
Partner with Product and Operations to reduce fraud, account compromise, collusion, and identity-based abuse without degrading platform usability, particularly in higher-risk regions.
Implement strong auditability, privilege governance, and behavioural anomaly detection across sensitive workflows in a way that is defensible to international regulators.
Be the Lead Security Partner for International Customers & Governments
Serve as the lead security partner in international enterprise and public sector engagements; running customer security reviews, supporting regulator interactions, and shaping trust narratives across the UK, EU, MENA, and beyond.
Drive execution of the international clearable-infrastructure plan without fragmenting the core platform.
Partner with Sales, Legal, and Compliance to streamline security reviews and build durable customer confidence.

Requirements

8+ years in cybersecurity (security engineering, product security, detection/response, or cloud security), with at least 4 years leading or formally mentoring engineers in high-growth or enterprise environments.
Demonstrated experience building and scaling security programs that materially improved risk posture.
Strong technical depth in cloud-native security (AWS / GCP / Azure), IAM / Zero Trust, infrastructure security, logging and monitoring, and secure SDLC practices.
Hands-on familiarity with GDPR, ISO 27001, SOC 2, UK Cyber Essentials Plus, NIS2, and the EU AI Act.
Experience managing insider risk or securing environments with significant third-party, contractor, or marketplace-style user populations.
Ability to operate cross-functionally with Engineering, Product, Legal, Compliance, Sales, and Public Sector stakeholders.
Right to work in the UK.
Comfortable traveling regularly.
Willing to be vetted for country-specific clearances where customer engagements require it.

Skills

Cloud-native security (AWS / GCP / Azure)
IAM / Zero Trust
Infrastructure security
Logging and monitoring
Secure SDLC practices
GDPR
ISO 27001
SOC 2
UK Cyber Essentials Plus
NIS2
EU AI Act
Insider risk management
AI / ML platforms security
LLM-based systems security
Agentic applications security
AI-specific threat vectors (training data poisoning, prompt injection, tool/plugin abuse, model IP protection)
Enterprise SaaS security
Government or national security customer environments
GCC sovereign compliance and privacy regulations
Multi-tenant systems security
Red-teaming
Adversarial testing
Offense-informed defense programs

Location

Work Type

Full-time

Experience Level

8+ years in cybersecurity
4+ years leading or formally mentoring engineers

About the Company

Scale AI develops reliable AI systems for the world's most important decisions, providing high-quality data and full-stack technologies for leading AI models and enterprise/government AI applications.
The company works with industry leaders like Meta, Ernst & Young, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies.
Scale is expanding its team to accelerate AI application development.

Equal Opportunity

Scale believes everyone should be able to bring their whole selves to work and is a proud inclusive and equal opportunity workplace.
Committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity or Veteran status.
Committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities.
Complies with the United States Department of Labor's Pay Transparency provision.