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Posted on 8 October 2026
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We are looking for a Lead AI Security Engineer to drive the implementation and maintenance of technical controls and security measures for Mastercard’s AI platforms. You will test models for vulnerabilities, build guardrails, and ensure secure AI use cases. Ideal candidates have strong security engineering experience and hands-on expertise in AI model security.
About Mastercard
Mastercard hires engineers across Dublin, London, Warsaw and a wide Southern/Western European tail. This is payments infrastructure at global scale, not a fintech startup's stack — expect established process and a long interview loop.
