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ResendResendUnited States

Deliverability Engineer, Core Sending

As a Deliverability Engineer, you will be responsible for building and maintaining core components for sending transactional and marketing emails. This role requires expertise in email deliverability, reputation, and high-volume email systems.

150k – 180k
RemoteBackend Engineering

About the role

Responsibilities

  • Build and maintain core components of Resend for transactional and marketing emails.
  • Turn ambiguous deliverability judgment into metrics, policies, runbooks, dashboards, and systems.
  • Communicate clearly with engineering, support, product, and customers.

Requirements

  • Experience in email deliverability, reputation, mail operations, anti-abuse, or high-volume email systems.
  • Understanding of IP reputation, domain reputation, authentication, bounces, complaints, suppressions, and warmup.
  • Knowledge of how major mailbox providers behave and how to diagnose provider-specific delivery issues.
  • Low ego, strong judgment, and high ownership.

Nice-to-haves

  • Operated shared and dedicated IP pools.
  • Designed or managed IP warmup programs.
  • Recovered from provider blocks, spam-foldering issues, complaint spikes, deferral spikes, or blocklist events.
  • Experience with Google Postmaster Tools, Microsoft SNDS/JMRP, Yahoo Sender Hub, feedback loops, or blocklist monitoring.
  • Understanding of DKIM, SPF, DMARC, PTR, TLS, DSNs, List-Unsubscribe, suppression, and bounce classification.
  • Partnered with Trust & Safety, anti-abuse, support, or customer-facing teams.
  • Helped build deliverability dashboards, reputation scoring, traffic segmentation, or automated enforcement systems.
  • Experience helping engineering teams turn deliverability knowledge into product and infrastructure.

Compensation

  • $150,000 - $180,000 USD, commensurate with experience.

Skills

Email DeliverabilityIp ReputationDomain ReputationDkimSpfDmarcGoogle Postmaster ToolsMicrosoft SndsYahoo Sender HubAWSNext.js

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