Microsoft Office 365 Systems Administrator

Microsoft Office 365 Systems Administrator

Posted 1 day ago by 1756534514

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Negotiable
Outside
Hybrid
USA
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Active Directory Application Programming Interface (API) Authentication Protocols Authentications Automation Azure Active Directory Change Management Cloud Computing Cloud Technology Domain Name System (DNS) Servers Management Microsoft 365 Microsoft Azure Microsoft OneDrive Microsoft SharePoint Microsoft Sharepoint Migrations Multi-Factor Authentication Role-Based Access Control (RBAC) Root Cause Analysis Scripting Security Assertion Markup Language (SAML) Windows PowerShell

Summary: We are looking for a highly experienced Microsoft 365 / O365 Administrator with over 12 years of expertise at a senior/L3 level to manage enterprise-level environments. The candidate should possess strong technical skills across the Microsoft 365 platform, including hands-on implementation and troubleshooting experience. Key responsibilities include administration of Microsoft 365 services, managing hybrid configurations, and leading migration projects. The role requires advanced PowerShell scripting and a solid understanding of security best practices within M365.

Key Responsibilities:

  • End-to-end administration & operations of Microsoft 365 tenant (Exchange Online, SharePoint Online, Teams, OneDrive, Microsoft 365 Groups).
  • Configure and maintain Azure Active Directory (AAD), Conditional Access policies, MFA, SSPR, RBAC, and ADFS.
  • Manage hybrid configurations, including Exchange Hybrid, AAD Connect, and ADFS.
  • Perform capacity planning, patching, upgrades, and change management for Microsoft 365 workloads.
  • Provide L3 troubleshooting and root cause analysis for complex issues across M365 services.
  • Lead and support migration projects (Exchange on-prem to Exchange Online, SharePoint migrations, Teams rollouts, tenant-to-tenant moves).
  • Develop and maintain advanced PowerShell scripts; leverage Microsoft Graph API for automation and integration.
  • Ensure adherence to security best practices and compliance policies within M365.

Key Skills:

  • 12+ years of overall IT experience with at least 7+ years in Microsoft 365 / O365 administration.
  • Strong expertise in Exchange Online, SharePoint Online, Teams, OneDrive, and Azure Active Directory.
  • Advanced knowledge of PowerShell scripting and Microsoft Graph API.
  • Strong understanding of DNS, networking fundamentals, authentication protocols (OAuth, SAML).
  • Experience in hybrid environments and cloud migrations.
  • Hands-on experience with Microsoft 365 security and compliance features.
  • Strong troubleshooting and analytical skills for complex, multi-layered issues.
  • Certification: Microsoft 365 Certified: Enterprise Administrator Expert (Required).

Salary (Rate): undetermined

City: Peachtree City

Country: USA

Working Arrangements: hybrid

IR35 Status: outside IR35

Seniority Level: Senior

Industry: IT

Detailed Description From Employer:

We are seeking a highly experienced Microsoft 365 / O365 Administrator with 12+ years of expertise at a senior/L3 level to support and manage enterprise-level environments. The ideal candidate will have strong technical depth across the Microsoft 365 platform, with hands-on implementation, troubleshooting, and design experience.

Key Responsibilities

  • End-to-end administration & operations of Microsoft 365 tenant (Exchange Online, SharePoint Online, Teams, OneDrive, Microsoft 365 Groups).

  • Configure and maintain Azure Active Directory (AAD), Conditional Access policies, MFA, SSPR, RBAC, and ADFS.

  • Manage hybrid configurations, including Exchange Hybrid, AAD Connect, and ADFS.

  • Perform capacity planning, patching, upgrades, and change management for Microsoft 365 workloads.

  • Provide L3 troubleshooting and root cause analysis for complex issues across M365 services.

  • Lead and support migration projects (Exchange on-prem to Exchange Online, SharePoint migrations, Teams rollouts, tenant-to-tenant moves).

  • Develop and maintain advanced PowerShell scripts; leverage Microsoft Graph API for automation and integration.

  • Ensure adherence to security best practices and compliance policies within M365.

Required Skills & Experience

  • 12+ years of overall IT experience with at least 7+ years in Microsoft 365 / O365 administration.

  • Strong expertise in Exchange Online, SharePoint Online, Teams, OneDrive, and Azure Active Directory.

  • Advanced knowledge of PowerShell scripting and Microsoft Graph API.

  • Strong understanding of DNS, networking fundamentals, authentication protocols (OAuth, SAML).

  • Experience in hybrid environments and cloud migrations.

  • Hands-on experience with Microsoft 365 security and compliance features.

  • Strong troubleshooting and analytical skills for complex, multi-layered issues.

  • Certification: Microsoft 365 Certified: Enterprise Administrator Expert (Required).

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