Deliverability Engineer, Core Sending
Job Description
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 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.
You will be a great fit if you...
Have experience in email deliverability, reputation, mail operations, anti-abuse, or high-volume email systems
Understand IP reputation, domain reputation, authentication, bounces, complaints, suppressions, and warmup
Know how major mailbox providers behave and how to diagnose provider-specific delivery issues
Can turn ambiguous deliverability judgment into metrics, policies, runbooks, dashboards, and systems
Communicate clearly with engineering, support, product, customers
Have low ego, strong judgment, and high ownership
You will be an exceptional fit if you also...
Have operated shared and dedicated IP pools
Have designed or managed IP warmup programs
Have recovered from provider blocks, spam-foldering issues, complaint spikes, deferral spikes, or blocklist events
Have experience with Google Postmaster Tools, Microsoft SNDS/JMRP, Yahoo Sender Hub, feedback loops, or blocklist monitoring
Understand DKIM, SPF, DMARC, PTR, TLS, DSNs, List-Unsubscribe, suppression, and bounce classification
Understand IP reputation, domain reputation, authentication, bounces, complaints, suppressions, and warmup
Have partnered with Trust & Safety, anti-abuse, support, or customer-facing teams
Have helped build deliverability dashboards, reputation scoring, traffic segmentation, or automated enforcement systems
Have experience helping engineering teams turn deliverability knowledge into product and infrastructure
What it means to join the team:
Autonomy to "just ship it"
100% remote team with flexible working schedules
Modern tech stack (AWS, Next.js, Raycast, Notion, etc.)
Honest and low-ego team
Ownership of problems and solutions
Comp: $150,000 - $180,000 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 →