Email Infrastructure / Deliverability Engineer

Job Summary

Location: Remote

About Us
We build high-volume outbound email infrastructure at scale.

What You’ll Work On
• SMTP Infrastructure
• Mail Server Deployment
• DNS Configuration
• IP & Domain Reputation
• Email Authentication
• Bounce Processing
• Inbox Placement

Required Skills
• SMTP (Postfix, Exim, PowerMTA)
• SPF, DKIM & DMARC
• DNS (MX, PTR, rDNS)
• IP Warmup & Rotation
• SMTP Relay Configuration
• Linux Administration
• Email Deliverability

Experience With
• PowerMTA
• Postfix
• Mailcow / Mail-in-a-Box
• Amazon SES
• Mailgun
• Postal SMTP
• Cloudflare DNS

Nice To Have
• Smartlead
• Instantly. ai
• Microsoft 365
• Google Workspace

Responsibilities
• Deploy and manage SMTP servers
• Configure DNS authentication records
• Troubleshoot deliverability issues
• Optimize inbox placement rates