Marqeta, Inc.

Principal Security Engineer at Marqeta

📍 Location
ottawa, on
⏰ Job Type
Full-time
📅 Posted
May 25, 2026
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Job Description

Elevate security standards at Marqeta as a Principal Security Engineer specializing in Product and AI. This role allows for fully remote work across the USA and emphasizes securing payment technologies.
As a technical leader, you will be responsible for product security engineering, AI risk assessment, and infrastructure oversight. You will integrate security practices into our payment platform and guide the development of AI security controls. Leading teams, engaging with diverse stakeholders, and influencing security initiatives are key aspects of this enriching role.
Key Responsibilities:
• Oversee product security engineering and API security practices
• Advise on AI security strategies and model evaluations
• Set technical standards for enterprise and infrastructure security
• Foster partnerships across Product and Security Operations teams
• Mentor security engineers, enhancing team skill levels
Requirements:
• 10+ years in security engineering roles

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