Microsoft 365 Engineer: Global Collaboration & Security

Oracle; Nashville (TN); On-site; USD 91,000 - 187,000; Full time

Benefits offered by this job

401(k) match

Paid time off

Job summary

Oracle Nashville, TN is seeking an experienced Microsoft 365 Engineer to join the Enterprise Collaboration Services team. You will administer and optimize Microsoft 365 across a large-scale environment supporting 150,000+ users, collaborating with security, networking, and engineering teams.

This role emphasizes automation with PowerShell, DMARC/SPF/DKIM, and Proofpoint, ensuring identity, messaging, and data governance align with Zero Trust and regulatory requirements.

Qualifications

• 6+ years of experience administering Microsoft 365 in large-scale enterprise environments.
• 6+ years of experience administering Proofpoint in large-scale enterprise environments.
• Strong expertise supporting Exchange Online, Microsoft Teams, SharePoint Online, and OneDrive for Business.
• Experience administering Microsoft Entra ID (Azure AD) and Active Directory environments.
• Experience implementing and managing Conditional Access, MFA, SSO, and identity security controls.
• Strong experience with email security platforms such as Proofpoint and Microsoft Defender for Office 365.
• Strong experience with Linux operating system.
• Hands‑on experience implementing and managing DMARC, SPF, and DKIM.
• Advanced PowerShell scripting and automation experience.
• Experience administering Windows Server and Linux systems.

Responsibilities

• Administer and support Microsoft 365 services including Exchange Online, Teams, SharePoint Online, OneDrive for Business, Entra ID and Purview.
• Manage enterprise Proofpoint messaging environments, mail flow, and email security solutions.
• Configure and maintain DMARC, SPF, and DKIM.
• Administer identity and access management solutions including CA, MFA, SSO, and PIM.
• Develop and maintain PowerShell automation to improve efficiency.
• Monitor, troubleshoot, and resolve complex issues across Microsoft 365 services.
• Implement security best practices aligned with Zero Trust and compliance requirements.
• Support governance, retention, eDiscovery, and information protection initiatives.
• Collaborate with security, network, cloud, and engineering teams to design scalable solutions.
• Maintain technical documentation and knowledge base content.
• Participate in on-call rotation.

Skills

Microsoft 365 administration

PowerShell scripting

Email security

Azure AD / Entra ID

Security governance

Troubleshooting

Tools

Proofpoint

Microsoft Defender for Office 365

Azure Active Directory

PowerShell

Windows Server

Linux

Job description

Oracle Nashville, TN is seeking an experienced Microsoft 365 Engineer to join the Enterprise Collaboration Services team. You will administer and optimize Microsoft 365 across a large-scale environment supporting 150,000+ users, collaborating with security, networking, and engineering teams.

This role emphasizes automation with PowerShell, DMARC/SPF/DKIM, and Proofpoint, ensuring identity, messaging, and data governance align with Zero Trust and regulatory requirements.