AI Security Engineer I — Safeguard AI & Cloud Security

Checkout; Greater London; Hybrid; GBP 70,000 - 120,000; Full time

Job summary

Checkout.com is seeking a Cyber Security Engineer I to design and implement AI security controls and ensure safe, governed AI adoption across the organisation. You will partner with Engineering, Data Governance, GRC, and business teams to embed security into AI systems and assess AI-related risks.

You will bridge cyber security with emerging AI technologies, shaping how Checkout secures AI tools, models, data pipelines and infrastructure, while exploring opportunities to strengthen cyber defence

Qualifications

• Experience in cyber security engineering or related security role.
• Strong understanding of IAM, cloud security, application security, data protection, logging and monitoring, and incident response.
• Knowledge of AI/ML and LLM concepts, including model deployment patterns, APIs, embeddings, vector stores, prompt handling, and common AI security risks.
• Experience securing cloud environments and modern development workflows in platforms such as AWS, Azure, or GCP.
• Familiarity with security risks relevant to AI systems, including prompt injection, data exfiltration, insecure model access, supply chain risks, model poisoning, and sensitive data exposure.
• Experience conducting architecture reviews, threat modelling, and security assessments for complex technical solutions.
• Ability to translate technical risk into clear, practical guidance for engineering and non-technical stakeholders.
• Strong collaboration skills across cyber security, engineering, data, legal, and business teams.
• A proactive mindset, operating in a fast-moving area where standards and best practices evolve.

Responsibilities

• Design and implement security controls for AI and machine learning solutions, including LLM-based applications, model integrations, and supporting cloud infrastructure.
• Assess the security, privacy, and compliance risks associated with AI systems, including model misuse, prompt injection, data leakage, insecure plugins, over-permissioned access, and third-party AI services.
• Develop standards, guardrails, and reference architectures for the secure use of AI across the organisation.
• Review AI use cases, architectures, and deployments to ensure alignment with cyber security policies, regulatory requirements, and internal governance expectations.
• Build and maintain monitoring, detection, and response capabilities for AI-related threats and misuse scenarios.
• Identify opportunities to use AI to enhance cyber security operations, such as alert triage, threat analysis, playbook automation, knowledge retrieval, and workflow optimisation.
• Stay current on evolving risks, attack techniques, regulations, and industry practices related to AI security and AI governance (inline with EU AI Act, ISO42001)

Skills

Cyber security engineering

Security architecture

AI/ML & LLM basics

Cloud security

AI risk awareness

Architecture reviews

Risk translation

Collaboration

Proactive mindset

Job description

Checkout.com is seeking a Cyber Security Engineer I to design and implement AI security controls and ensure safe, governed AI adoption across the organisation. You will partner with Engineering, Data Governance, GRC, and business teams to embed security into AI systems and assess AI-related risks.

You will bridge cyber security with emerging AI technologies, shaping how Checkout secures AI tools, models, data pipelines and infrastructure, while exploring opportunities to strengthen cyber defence