Security Engineer, Platform

Resend is growing fast, and there are now over 2 million developers using it. As the Platform Squad, we are responsible for the internal platform and reliability foundations that let Resend teams build, deploy, observe, and operate services safely. This role is fully remote based in Americas or European timezones, with some expected travel for team offsites, conferences, meetups, and more. Read more about how we work, how we hire, and what we value here https://resend.com/handbook. IN THIS ROLE, YOU WILL… - Build and improve the security foundations of Resend’s platform, including API keys, service permissions, secrets management, tenant isolation, audit logs, and internal access controls - Help design secure defaults for new services, workers, queues, databases, internal tools, and deployment pipelines - Improve detection and response for suspicious access, leaked credentials, abnormal sending behavior, privilege changes, and sensitive system events - Review and update o