Email Delivery Engineer (MTA Specialist)

About the Role

We're seeking an experienced Email Delivery Engineer with deep expertise in Mail Transfer Agent (MTA) systems and AWS cloud infrastructure. You'll be responsible for managing our enterprise-grade email delivery infrastructure, ensuring optimal deliverability, performance, and compliance for high-volume email campaigns.

KRA - MTA

• Design, deploy, and maintain high-performance MTA environments handling millions of emails daily
• Configure and optimize MTA instances for maximum throughput and reliability
• Implement multi-domain email delivery architecture supporting multiple customer accounts
• Set up and manage virtual MTAs for client isolation and branded delivery
• Configure bounce processing systems and feedback loop mechanisms
• Implement traffic shaping policies and rate limiting rules
• Manage IP pool configurations for reputation management and delivery optimization
• Set up comprehensive monitoring for delivery metrics and system health
• Analyze bounce patterns and implement corrective measures
• Troubleshoot delivery issues with ISPs and email providers
• Investigate and resolve performance bottlenecks
• Conduct root cause analysis for system incidents
• Maintain detailed documentation of configurations and procedures

Email Deliverability

• Configure and maintain SPF, DKIM, and DMARC records for multiple sending domains
• Monitor and maintain sender reputation scores across major ISPs
• Implement bounce classification, FBL and processing workflows
• Manage whitelisting requests and ISP relationship programs

AWS Cloud

• Deploy and manage MTA instances on AWS EC2 infrastructure
• Configure VPC, security groups, and network ACLs for email infrastructure
• Implement auto-scaling solutions for handling traffic spikes
• Set up CloudWatch monitoring and alerting for system health
• Manage Elastic IPs and IP warming schedules
• Configure S3 for log storage and backup solutions
• Implement disaster recovery and high-availability architectures
• Configure SMTP relay systems and routing rules
• Set up webhook integrations for bounce and delivery notifications
• Implement custom bounce processing handlers and parsers
• Configure queue management and retry logic
• Set up header rewriting and content filtering rules
• Integrate MTA with email marketing platforms and CRM systems
• Configure accounting and logging systems for compliance tracking

Technical Skills

• 3+ years

   of hands-on experience with MTA systems in production environments
• Strong understanding of SMTP protocol, RFC compliance, and email standards
• Extensive experience with AWS services (EC2, VPC, S3, CloudWatch, Route53)
• Proficiency in Linux system administration (Ubuntu/RHEL)
• Experience with email authentication protocols (SPF, DKIM, DMARC, ARC)
• Knowledge of DNS management and configuration
• Strong scripting skills (Bash, Python, or Perl)
• Understanding of MySQL/MariaDB for bounce processing and logging

Domain Expertise

• Deep knowledge of email deliverability best practices
• Understanding of ISP filtering mechanisms and spam policies
• Experience with IP warming and reputation management
• Familiarity with feedback loops and complaint handling
• Knowledge of CAN-SPAM, GDPR, and email compliance regulations

Soft Skills

• Excellent problem-solving and analytical abilities
• Strong communication skills for client interactions
• Ability to work independently and manage multiple priorities
• Detail-oriented with strong documentation habits
• Proactive approach to system monitoring and maintenance

Preferred Qualification

• Experience with email marketing platforms
• Knowledge of API integration and webhook implementations
• Familiarity with load balancing and high-availability configurations
• Experience with log analysis tools
• Understanding of email campaign management workflows
• Certifications in AWS (Solutions Architect or SysOps Administrator)

• Experience in AI would be added advantage

What you will work on

• Managing multi-tenant email infrastructure serving diverse client portfolios
• Implementing advanced bounce processing systems similar to major ESPs
• Optimizing delivery rates and inbox placement across global ISPs
• Building scalable solutions for growing email volume demands
• Collaborating with customer success teams to resolve delivery challenges
• Staying current with evolving email industry standards and best practices

Join US

• Work with cutting-edge email delivery infrastructure
• Opportunity to manage millions of emails daily
• Collaborative team environment
• Continuous learning and skill development
• Professional growth opportunities in email technology