Infrastructure Email Deliverability Engineer

Job Description

The Infrastructure Email Deliverability Engineer will work across business units to identify gaps and opportunities in all email related functions to create synergies within or across business units and teams. This work focuses on strong email strategy and infrastructure design, continuous process improvement, and close coordination with business function.

As M3 USA continues to grow, there will also be opportunities to be involved in post-acquisition management process, to ensure that M3 realizes the planned acquisition synergies in a timely manner. This role will be pivotal to assuring business unit and M3 USA goals are realized with effective, timely, and scalable email methodologies.

The candidate should possess a strong understanding of digital solutions and be able to work in a fast-paced team environment, creatively executing business developments plans, and framing opportunities and solutions that sell appropriate M3 USA digital solutions. The right candidate should have deep email deliverability and operations experience and should possess strong ability to develop or support new sources of revenue and organic growth within existing clients.

The ideal candidate will also bring strong skills in writing, research, data analysis, and project management, along with Infrastructure Services experience such as Systems Administration, Networking Engineering or Security Engineering.

Essential Duties and Responsibilities

Email Infrastructure & Deliverability

• Configure and manage Mail Transfer Agents (MTAs) such as Postfix, SmarterMail, PowerMTA, and Postal API—including SPF, DKIM, DMARC, TLS, feedback loops, and bounce handling.
• Monitor and manage IP and domain reputation to ensure maximum email deliverability.
• Investigate, diagnose, and remediate email deliverability issues by collaborating with internal teams, customers, ISPs, denylist operators, and anti-spam providers.
• Proactively manage IP reputation and ensure compliance with sending best practices across all portfolio companies.
• Respond to deliverability-related support tickets and provide expert escalation support for complex customer issues.
• Create and present deliverability reports with actionable insights and recommendations.
• Maintain strong relationships with Internet Service Providers (ISPs).
• Assist business units in selecting appropriate Email Service Providers (ESPs).

Campaign Optimization & Strategy

• Drive customer engagement and retention through lifecycle marketing automations.
• Identify opportunities for email operations program enhancements and audience strategies.
• Develop and execute a testing agenda to continuously improve contact engagement.
• Research and implement email trends and seasonality strategies to support sending initiatives.
• Work closely with stakeholders to drive best practices in email design, personalization, campaign segmentation, and responsive messaging.
• Monitor delivery rates, inbox placement, and engagement metrics across all campaigns.
• Employ tools like ReturnPath to pull KPIs into weekly and monthly reports, identify bottlenecks, and plan capacity.
• Identify incidents and negative trends and collaborate with appropriate teams to resolve them.
• Take an active role in thought leadership by documenting operational processes and communicating compliance updates across teams.

Qualifications

• 5+ years of experience in email deliverability and best practices.
• Hands-on experience with mail server configuration (Postfix, SmarterMail, PowerMTA, Postal API).
• Proven success navigating ISP deliverability challenges and optimizing inbox placement.
• Strong understanding of email infrastructure: IPs, DNS, SMTP, authentication protocols, and headers.
• Familiarity with email-compliant HTML, allowlist, bounce management, CAN-SPAM, and anti-spam technologies.
• Experience with dynamic content and personalization strategies.
• Proficient in managing feedback loops and bounce handling systems.
• Ability to upload and manage data across multiple platforms.
• Self-motivated and proactive in researching and implementing ISP best practices.
• Quick learner with a strong aptitude for new technologies.

Additional Information

Benefits:

A career opportunity with M3 USA offers competitive wages, and benefits such as:

• Health and Dental
• Life, Accident and Disability Insurance
• Prescription Plan
• Flexible Spending Account
• 401k Plan and Match
• Paid Holidays and Vacation
• Sick Days and Personal Day

*M3 reserves the right to change this job description to meet the business needs of the organization

M3 USA is an equal opportunity employer, committed to the principles of inclusion and diversity for all employees and to providing employees with a work environment free of discrimination and harassment.

All employment decisions at M3 USA are based on business needs, job requirements and individual qualifications, without regard to race, color, religion or belief, national, social or ethnic origin, sex (including pregnancy), age, physical or mental disability, medical history or genetic information, sexual orientation, gender identity and/or expression, marital status, past or present military service, family or parental status, or any other status protected by the federal, state or local laws or regulations in the locations where we operate.

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