Backend Engineer

RESENDEZ JULIO AND RESEND

United States

4 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Compensation

$150,000.0 - $170,000.0

Working hours

Regular working hours

Job source

startup.jobs

Tech stack

Software Debugging Distributed Systems Domain Name System (DNS) Message Transfer Agent Simple Mail Transfer Protocols TypeScript Backend Build Tools Golang

Job description

Work on SMTP delivery, MTA systems, routing, retries, backoff strategies, and delivery controls
Design systems for domain-level, provider-level, customer-level, and IP-level throttling
Build infrastructure for shared IP pools, dedicated IPs, warmup execution, and reputation-aware routing
Improve how Resend classifies bounces, deferrals, transient failures, hard failures, and delivery outcomes
Build tools that help the team debug delivery issues by customer, domain, mailbox provider, route, IP, message type, and event
Help design systems that make sending behavior safer, more observable, and easier to operate
Translate reputation strategy into backend systems
Partner with Trust & Safety and Core Sending to build controls that protect Resend’s sending network from abuse
Participate in incident response for sending, provider, and deliverability-sensitive issues
Be on-call for critical services

Requirements

Have strong backend engineering experience
Have worked on email, messaging, notifications, communications, infrastructure, or other high-volume delivery systems
Understand queues, workers, retries, idempotency, rate limits, backpressure, and distributed systems
Have experience or strong interest in SMTP, MTAs, DNS, bounces, deferrals, DNS, IP pools, and mailbox-provider behavior
Care about reliability, observability, operational excellence, and reducing blast radius
Have low ego, high ownership, and strong taste for simple systems

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

Benefits & conditions

Autonomy to “just ship it”
100% remote team with flexible working schedules
Modern tech stack (Typescript, AWS, Go, Postgres, Datadog)
Honest and low-ego team
Ownership of problems and solutions
Comp: $150,000 - $170,000 USD, commensurate with experience

About the company

Resend is building the most accessible email platform for developers. As we’ve grown to 3M+ users and continue to onboard thousands of new users every day, the pressure of maintaining a safe place for good senders continues to build.