Principal Security Engineer
About this role
About the Role Marqeta’s Principal Security Engineer will serve as the technical lead across our security engineering function. This role combines three critical responsibilities: leading product security engineering across our payment platform, building our AI security program as we scale generative AI and ML capabilities, and providing security architecture oversight across enterprise and infrastructure security. We work Flexible First.
What You'll Do
- Lead product security engineering for our payment platform—owning threat modeling, security architecture review, secure SDLC practices, and API security across the engineering organization
- Help mature our AI security program—developing genAI controls, securing ML pipelines, and working alongside the Model Risk Office for model evaluations
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