Backend Engineer, Core Sending

Resend is growing fast, and there are now over 1 million developers using it. We, in the Core Sending team, 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 UTC-5 to UTC0 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

• Help to build our infrastructure with IaC frameworks like CDK and TF

• Work with Typescript and Golang

• Design and operate async pipelines (queues, streams, idempotency, retries, DLQs) that move tens of millions of messages per day

• Be on-call rotation (for critical services)

You will be a great fit if you...

• 8+ years of back-end engineering with a focus on cloud infrastructure

• Are fluent in writing and speaking English

• Can consistently work in the Americas timezone

• Thrive in open-ended problems and situations

• Have supported large workloads on AWS

• You love helping other developers

• “Default to action” kind of person

• Hands-on on solving problems

• Experience with event-driven systems at scale. Kafka, SQS/SNS, or similar.

• Low ego

You will be an exceptional fit if you also...

• Have experience working on applications with a high workload