Backend Engineer (Infra), Core Sending

Resend is growing fast, and there are now over 2 million developers using it. As the Core Sending Squad, we are responsible for building and maintaining the core components of Resend that handle sending transactional and marketing emails.

This role is fully remote-based in Americas or European time zones, with some expected travel for team off‑sites, conferences, meetups, and more.

Read more about how we work, how we hire, and what we value here

In this role, you will…

• Help define the architecture to support millions of daily API requests
• Build and scale infrastructure to send dozens of millions of emails per day
• Improve high availability across distributed applications
• Scale databases like Postgres and Clickhouse to ensure that they are performant
• Enhance observability by using monitoring tools like Datadog
• Refine disaster recovery plans to ensure that recovery is quick and reliable...