E-Mail Security Engineer
Listed on 2026-01-16
-
IT/Tech
Cybersecurity, Systems Engineer
Job Title
: E-Mail Security Engineer
Location
:
Atlanta, GA (Local Candidates only)
Duration
: ~6 Months
Work Hours
:
Hybrid (Some evenings; NTE 40 hrs/week)
Key Skills
:
Spam Filtering, DLP, MS Defender, Anti-Phishing, Threat Analysis, Azure AD administration
Preferred
:
Power Shell automation and reporting, message tracing, transport rules, Microsoft Purview compliance tools, government or regulated enterprise experience
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.
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.
- 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.
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