Job Title: Senior Messaging & Email Infrastructure Engineer
Location: Atlanta, GA (Local Candidates only)
Duration: ~6 Months
Work Hours: Hybrid (Some evenings; NTE 40 hrs/week)

Key Skills: Microsoft 365 Exchange Online, Exchange Server 2013/2016/2019, Hybrid Exchange, Proofpoint, Microsoft Defender for Office 365, Email Security, SMTP, DNS (MX, SPF, DKIM, DMARC), Azure Active Directory, SSO, Identity Integration, PowerShell

Preferred Skills: PowerShell (automation, reporting), message tracing, transport rules, MS Purview compliance tools, government/regulated enterprise experience

Job Description:

The Senior Exchange & Email Security 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.

Job 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.

Required Qualifications

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.

Email your resume to: usjobs@mavensoft.com
To learn more about Mavensoft visit us online at http://www.mavensoft.com/