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 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 Know about email best practices, or are willing to learn more about this space Are experienced in Typescript and Golang What it means to join the team: Autonomy to "just ship it" 100% remote team with flexible working schedules Modern tech stack Honest and low-ego team Ownership of problems and solutions Comp: $150,000 - $170,000 USD, commensurate with experience About Resend We are building the modern email sending platform for developers. We care deeply about quality, craft, and the developer experience. Our fully remote team of 45 spans 13 countries and counting. We're backed by a16z, Y Combinator, and others. Meet the humans → Apply To This Job