Deliverability Engineer, Core Sending
Core
Building and maintaining core components for sending transactional and marketing emails, focusing on deliverability, reputation, and mail operations.
Role type
Senior IC deliverability engineer (email infrastructure)
Builds
Core sending infrastructure, reputation management systems, and deliverability dashboards
Domain
Email infrastructure, mail operations, anti-abuse
Deliverable
production ML models | infrastructure | dashboards & analysis
Required skills
email deliverability, IP reputation, domain reputation, email authentication (DKIM, SPF, DMARC), bounce/complaint/suppression handling, mailbox provider diagnosis, metrics-driven policy creation
Preferred skills
shared/dedicated IP pool operation, IP warmup program design, recovery from provider blocks/spam-foldering, Google Postmaster Tools/Microsoft SNDS/Yahoo Sender Hub experience, blocklist monitoring, partnership with Trust & Safety teams, automated enforcement system design
Technologies
AWS, Next.js, Raycast, Notion, Google Postmaster Tools, Microsoft SNDS/JMRP, Yahoo Sender Hub
Responsibilities
Diagnose provider-specific delivery issues, turn ambiguous deliverability judgment into metrics and runbooks, operate IP pools and manage warmup programs, recover from spam-foldering or blocklist events, build reputation scoring and traffic segmentation systems
Seniority
Senior, hands-on IC