Deliverability Engineer, Core Sending

Resend

Deliverability Engineer responsible for maintaining core email components at Resend. Join a fully remote team dedicated to quality, craft, and developer experience.

Posted 5/29/2026full-timeRemote • 🇺🇸 United StatesMid-LevelSenior💰 $150,000 - $180,000 per yearWebsite

About the role

Key responsibilities & impact

Responsible for building and maintaining the core components of Resend that handle sending transactional and marketing emails
Collaborate with the Core Sending Squad

Requirements

What you’ll need

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
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
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

Benefits

Comp & perks

100% remote team with flexible working schedules
Ownership of problems and solutions
Modern tech stack (AWS, Next.js, Raycast, Notion, etc.)
Honest and low-ego team
Autonomy to "just ship it"

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

email deliverabilityIP reputationdomain reputationauthenticationbouncescomplaintssuppressionsIP warmupGoogle Postmaster ToolsDKIM

Soft Skills

clear communicationlow egostrong judgmenthigh ownership