Deliverability Engineer, Core Sending

🕒 May 29

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Resend

WebsiteLinkedInAll Job Openings

1 - 10 employees

Founded 2022

☁️ SaaS

🔌 API

🤝 B2B

💰 $3M Seed Round on 2023-07

SaaS • API • B2B

Resend is a developer-focused email platform designed to deliver transactional and marketing emails at scale. Its simple and elegant interface, along with SDKs for various programming languages, allows for seamless integration into developers' workflows. Companies of all sizes trust Resend for reliable email delivery, helping them reach humans instead of spam folders. The platform offers features like modular webhooks, contact management, broadcast analytics, and a powerful editor for creating beautiful email templates using React. Resend also provides insights into email interactions, secure domain authentication, and dedicated IP management to enhance deliverability.

📋 Description

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

🎯 Requirements

• 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

• 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"