后端工程师（MTA），信任与安全
Backend Engineer (MTA), Trust & Safety
Resend 正在构建开发者最易用的电子邮件平台。随着用户数量增长到 400 万以上，并且每天继续增加数千名新用户，维护一个安全的发送者环境的压力也在不断加大。
该职位为美洲或欧洲时区的远程办公，偶尔需要出差参加团队会议、会议、聚会等。
了解更多关于我们的工作方式、招聘方式以及我们重视的价值观，请访问 https://resend.com/handbook。
在本职位中，您将...
- 构建和运营 Resend 的电子邮件传输基础设施
- 参与 SMTP 交付、MTA 系统、路由、重试、退避策略和交付控制
- 设计针对域名级别、供应商级别、客户级别和 IP 级别的限流系统
- 构建共享 IP 池、专用 IP、预热执行和基于声誉的路由基础设施
- 改进 Resend 对退信、延迟、临时失败、硬性失败和交付结果的分类方式
- 构建工具，帮助团队根据客户、域名、邮箱服务商、路由、IP、消息类型和事件来调试交付问题
- 协助设计使发送行为更安全、更可观测、更易于运维的系统
- 将声誉策略转化为后端系统
- 与 Trust & Safety 和 Core Sending 合作，构建保护 Resend 发送网络免受滥用的控制措施
- 参与发送、供应商和交付敏感问题的事件响应
- 负责关键服务的值班工作
如果您符合以下条件，将是很好的人选...
- 具有扎实的后端工程经验
- 有邮件、消息、通知、通信、基础设施或其他高吞吐量交付系统的经验
- 理解队列、工作者、重试、幂等性、速率限制、背压和分布式系统
- 有 SMTP、MTA、DNS、退信、延迟、DNS、IP 池和邮箱服务商行为的经验或浓厚兴趣
- 关注可靠性、可观测性、运维卓越性和减少影响范围
- 具有低自我、高责任感，对简单系统有良好的品味
如果您还符合以下条件，将是出色的候选人...
- 有在高负载应用上工作的经验
- 了解邮件最佳实践，或者愿意深入了解这一领域
- 精通 Typescript 和 Golang
加入团队意味着...
- 自主“直接发布”的权力
- 100% 远程团队，灵活的工作时间
- 现代技术栈（Typescript、Golang、Kubernetes、PostgreSQL、Redis、Python、React、Stripe 等）
查看英文原文
Resend is building the most accessible email platform for developers. As we’ve grown to 4M+ users and continue to onboard thousands of new users every day, the pressure of maintaining a safe place for good senders continues to build.
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 https://resend.com/handbook.
IN THIS ROLE, YOU WILL…
- Build and operate Resend’s email transport infrastructure
- 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
YOU WILL BE A GREAT FIT IF YOU...
- 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
WHAT IT MEANS TO JOIN THE TEAM:
- 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 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 50 spans 15 countries and counting. We're backed by a16z, Y Combinator, and others. Meet the humans → https://resend.com/humans