Backend Engineer, MTA
Company shown to members 🔒 · Remote · US, Ireland only
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First recorded by Psst: 12 October 2026. Your first 3 jobs are free to apply to (the first right away, 2 more with your email). After that, the company and the apply link are for Psst members, from $4.99 for 7 days.
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The 20-second read
- Experience
- Experience not stated
- Where you can live
- US, Ireland only
- Skills and tools
- typescript, golang, aws
- Time zone
- European time zones
- Job type
- Full-time
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Job details
- Where you can work
- United States, Ireland
- Employment type
- Full-time
- Advertised pay
- $150K–170K/yr
- Experience
- Experience not stated
- Employer publication date
- 29 May 2026
- First recorded by Psst
- 12 October 2026
- Last checked at the source
- 10 November 2026
About the job
The company 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 [link for members]
IN THIS ROLE, YOU WILL…
- Build and operate the company’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 the company 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 the company’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 location and experience
ABOUT the company
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 → [link for members]
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