Email Deliverability Specialist

The role

You will act as a deliverability advisor to help customers reach the inbox by diagnosing sending issues and advising on best practices. You will work with Engineering to resolve technical cases and create documentation and training to scale deliverability support.

What you will do

• Act as a trusted deliverability advisor to customers
• Handle complex cases through to full resolution
• Lead customer calls when a conversation needs it
• Audit sender setup and monitor reputation across IPs and domains
• Use authentication, DNS configuration, and provider tools to diagnose issues
• Work through highly technical issues with Engineering
• Identify acceptable use policy violations and spam complaints
• Hold direct conversations with customers about compliance
• Equip CSMs and Technical Support with knowledge through coaching and training
• Improve processes, tools, and one-to-many resources

Required qualifications

• 2-4 years of experience in email deliverability at a mid-size or large ESP, B2B SaaS company, or marketing automation platform
• Deep understanding of email authentication (SPF, DKIM, DMARC, BIMI) and infrastructure (SMTP, MTAs, DNS)
• Proficiency with provider data feeds (Google Postmaster Tools, Yahoo Sender Hub, Microsoft SNDS)
• Proficiency with third-party deliverability monitoring tools like Everest, MXToolbox, or similar
• Analytical skill to turn bounce, engagement, and blocklist data into clear recommendations
• Working knowledge of email compliance and acceptable use standards
• Experience building or improving processes, documentation, or training
• Excellent written and verbal communication
• Located in the United States or Canada

Nice to have

• participation in deliverability communities (M3AAWG, ESPC, or similar)
• experience partnering with Customer Success teams

Benefits

• 100% coverage of medical, dental, vision, mental health, and supplemental insurance premiums for you and your family
• 16 weeks paid parental leave
• unlimited PTO
• stipends for remote work and wellness
• professional development budget

Before you apply

• 30-minute video call with a Recruiter
• 45-minute video call with the Hiring Manager
• 60 minute Case Study Review call with Cross-Functional Partners
• 30 minute video call with potential Team Member
• 30 minute final video call with Senior Leadership

About the company

Over 9,000 companies use Customer.io platform to send emails, push notifications, in-app messages, and SMS. The platform powers automated communication using real-time behavioral data.