Microsoft 365 System Engineer

Oracle•Nashville, TN

4d•$91,400 - $187,000•Onsite

About The Position

Oracle Cloud Infrastructure (OCI) is seeking an experienced Microsoft 365 Engineer to join our Enterprise Collaboration Services team. This position plays a critical role in delivering secure, reliable, and scalable collaboration, messaging, and identity services supporting Oracle's global workforce. As a Microsoft 365 Engineer, you will be responsible for the administration, optimization, security, and automation of Microsoft 365 technologies across a large-scale enterprise environment supporting more than 150,000 users worldwide. You will work closely with infrastructure, security, networking, and engineering teams to ensure the availability, performance, and security of critical collaboration platforms including Exchange Online, Proofpoint, SharePoint Online, OneDrive for Business, Microsoft Entra ID (Azure AD), Microsoft Purview, Power MTA, Microsoft Teams and Eloqua. The ideal candidate combines strong technical expertise with a passion for operational excellence, automation, and continuous improvement. You will help drive modern workplace initiatives while implementing enterprise-grade security controls, governance policies, and automation solutions that enhance employee productivity and protect organizational assets.

Requirements

Experienced Microsoft 365 Engineer
Strong technical expertise
Passion for operational excellence, automation, and continuous improvement
Experience with enterprise-grade security controls, governance policies, and automation solutions
Experience administering and supporting Microsoft 365 services including Exchange Online, Microsoft Teams, SharePoint Online, OneDrive for Business, Microsoft Entra ID (Azure AD), and Microsoft Purview.
Experience managing enterprise messaging infrastructure, mail flow, transport rules, email security, and collaboration services in a highly available global environment.
Experience configuring, maintaining, and optimizing email security solutions using Proofpoint.
Experience implementing and managing email authentication technologies including DMARC, SPF, and DKIM.
Experience designing, developing, and maintaining PowerShell automation and scripting solutions.
Experience administering identity and access management technologies including Conditional Access, Multi-Factor Authentication (MFA), Single Sign-On (SSO), and Privileged Identity Management (PIM).
Experience monitoring system performance, availability, and security.
Experience troubleshooting complex technical issues across collaboration, identity, messaging, and endpoint management platforms.
Experience supporting compliance, governance, retention, eDiscovery, and information protection initiatives using Microsoft Purview and related technologies.
Experience collaborating with security, networking, cloud, and engineering teams.
Experience maintaining technical documentation, operational procedures, architectural standards, and knowledge base content.
Willingness to participate in an on-call rotation.

Responsibilities

Administer and support Microsoft 365 services including Exchange Online, Microsoft Teams, SharePoint Online, OneDrive for Business, Microsoft Entra ID (Azure AD), and Microsoft Purview.
Manage enterprise messaging infrastructure, mail flow, transport rules, email security, and collaboration services in a highly available global environment.
Configure, maintain, and optimize email security solutions using Proofpoint.
Implement and manage email authentication technologies including DMARC, SPF, and DKIM to improve email security and domain protection.
Design, develop, and maintain PowerShell automation and scripting solutions to streamline operational processes and improve service reliability.
Administer identity and access management technologies including Conditional Access, Multi-Factor Authentication (MFA), Single Sign-On (SSO), and Privileged Identity Management (PIM).
Monitor system performance, availability, and security while proactively identifying and resolving issues affecting Microsoft 365 services.
Troubleshoot complex technical issues across collaboration, identity, messaging, and endpoint management platforms.
Support compliance, governance, retention, eDiscovery, and information protection initiatives using Microsoft Purview and related technologies.
Collaborate with security, networking, cloud, and engineering teams to design and implement scalable, secure, and resilient enterprise solutions.
Maintain technical documentation, operational procedures, architectural standards, and knowledge base content.
Participate in an on-call rotation supporting business-critical collaboration and messaging services.