Inbox Deliverability Architect

Customer.io; United States; Remote; USD 102,000 - 110,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

Parental leave (16 weeks)

Remote work stipends

Professional development budget

Job summary

Customer.io is seeking an Email Deliverability Specialist to join our Technical Support team in the United States. You will diagnose sending issues, advise on best practices, and guide senders through an evolving email ecosystem to help reach the inbox.

You'll collaborate with Customer Success, Engineering, and Support to share knowledge, own investigations, and turn findings into documentation and training that scale across the organization.

Qualifications

• 2–4 years of experience in email deliverability at a mid-size or large ESP, B2B SaaS or marketing automation platform.
• Deep understanding of email authentication (SPF, DKIM, DMARC, BIMI) and infrastructure (SMTP, MTAs, DNS).
• Experience with deliverability monitoring tools and turning analytics into recommendations.

Responsibilities

• Act as a trusted deliverability advisor to customers and lead complex cases to resolution.
• Audit sender setup and monitor reputation across IPs/domains; diagnose blocks and engagement drops.
• Collaborate with Engineering to take ownership of investigations and share trends with Product.
• Identify acceptable use policy violations and communicate compliance with customers.
• Coach and document for CSMs and Technical Support to scale deliverability conversations.
• Improve processes and create proactive guidance to scale across the org.

Skills

Deliverability

Communication

Troubleshooting

Data interpretation

Tools

Google Postmaster Tools

Yahoo Sender Hub

Microsoft SNDS

Everest

MXToolbox

Job description

Customer.io is seeking an Email Deliverability Specialist to join our Technical Support team in the United States. You will diagnose sending issues, advise on best practices, and guide senders through an evolving email ecosystem to help reach the inbox.

You'll collaborate with Customer Success, Engineering, and Support to share knowledge, own investigations, and turn findings into documentation and training that scale across the organization.