Deliverability Engineer, Core Sending

New

Brazil, Americas time zonesFull-TimeMiddle

Salary not disclosed

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Job Details

Requirements

Proven experience in email deliverability, anti-abuse systems, mail operations, or high-scale messaging infrastructure
Strong understanding of IP and domain reputation, SPF, DKIM, DMARC, bounce handling, complaints, suppressions, and warmup strategies
Experience diagnosing deliverability issues across major mailbox providers and interpreting delivery signals
Ability to design metrics, dashboards, policies, and systems from loosely defined deliverability challenges
Familiarity with tools such as Google Postmaster Tools, Microsoft SNDS/JMRP, feedback loops, and blocklist monitoring
Experience working with engineering, support, and customer-facing teams in cross-functional environments
Strong communication skills, analytical thinking, and a high level of ownership and autonomy

Responsibilities

Design and improve systems for email deliverability, including IP reputation, domain reputation, authentication, and bounce classification
Build and maintain frameworks for monitoring sending behavior, including dashboards, metrics, and alerting systems
Develop and optimize IP warmup strategies, shared and dedicated IP pools, and traffic segmentation logic
Investigate and resolve deliverability issues such as spam-foldering, blocklisting, deferrals, and provider-specific delivery failures
Collaborate with engineering and Trust & Safety teams to prevent abuse and enforce sending policies
Convert ambiguous deliverability signals into structured systems, runbooks, and automated enforcement mechanisms
Support incident response for critical delivery disruptions and ensure system resilience and observability

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