E-Mail Security Engineer

Mavensoft Technologies. • Atlanta, GA

27d • Hybrid

About The Position

This Email Security & Exchange Engineer will serve as the technical lead and subject matter expert (SME) for enterprise messaging and email security platforms. This role supports Microsoft 365 Exchange, on-premises Exchange, Proofpoint, Microsoft Defender for Email, and Azure-based identity services, with a focus on platform reliability, security, modernization, and incident response in a large enterprise environment.

Requirements

• 7+ years of experience supporting enterprise messaging systems.
• Strong hands-on experience with Microsoft 365 Exchange Online, Exchange Server 2013/2016/2019, and hybrid Exchange environments.
• Proven experience administering Proofpoint and Microsoft Defender for Office 365.
• Advanced troubleshooting skills with SMTP, email routing, and DNS (MX, SPF, DKIM, DMARC).
• Experience supporting Azure Active Directory and enterprise identity integrations.

Nice To Haves

• PowerShell automation and reporting, message tracing, transport rules
• Microsoft Purview compliance tools
• Government or regulated enterprise experience

Responsibilities

• Administer and optimize Microsoft 365 Exchange Online and on-prem Exchange in hybrid environments.
• Manage mail flow, routing, compliance, retention, and messaging security controls.
• Support Exchange upgrades, migrations, and modernization initiatives.
• Administer and tune email security platforms including Proofpoint and Microsoft Defender for Office 365.
• Troubleshoot complex email delivery issues, security threats, and user-impacting incidents.
• Support Azure AD integration, SSO, and hybrid identity synchronization.
• Lead high-severity incident response, root cause analysis, and remediation efforts.
• Develop operational documentation including SOPs, runbooks, dashboards, and reports.
• Provide technical guidance and knowledge transfer to internal engineering teams.

What This Job Offers

• Career Level: Mid Level
• Education Level: No Education Listed