Senior Administrator - Microsoft 365 Administration
Technology, Data & Digital · IT Infrastructure & Security · IT Support · Systems Engineering · Cybersecurity
In short
This role involves administering Microsoft 365 services including Exchange Online, Microsoft Teams, and SharePoint Online. You will manage Entra ID (Azure AD) for user lifecycle and security, implement Defender for Office 365, and configure Microsoft Purview for compliance.
Responsibilities
- Administer Exchange Online including mailbox provisioning, distribution groups, mail flow rules, and transport layer security connectors.
- Manage Microsoft Teams policies — meeting configurations, voice calling plans, channel governance, and guest access controls.
- Configure and maintain SharePoint Online site collections, permissions inheritance, hub site architecture, and storage quotas.
- Govern Entra ID (Azure AD) user and group lifecycle, conditional access policies, MFA enforcement, and privileged identity management.
- Monitor Microsoft 365 service health, investigate tenant-level incidents, and coordinate with Microsoft support on escalations.
- Administer Microsoft 365 licensing — assign, reclaim, and optimize SKUs to control costs across user populations.
- Implement and tune Microsoft Defender for Office 365 anti-phishing, safe links, safe attachments, and threat investigation policies.
- Build and manage Microsoft Purview retention labels, DLP policies, and eDiscovery holds to meet compliance and legal requirements.
- Automate routine administrative tasks using PowerShell scripts and Power Automate flows to reduce manual ticket volume.
- Create and maintain technical documentation, runbooks, and change records for all tenant configuration and policy decisions.
Requirements
- Exchange Online: mailbox management, transport rules, mail flow connectors, DKIM/DMARC/SPF configuration, hybrid coexistence
- Microsoft Teams: policies, calling plans, direct routing, meeting room device management, governance frameworks
- SharePoint Online: site provisioning, permission models, hub sites, search schema, migration tooling (ShareGate, SPMT)
- Entra ID: conditional access, MFA, group-based licensing, PIM, external identities, app registrations
- Security and compliance: Defender for Office 365, Purview DLP, retention policies, communication compliance, eDiscovery
- PowerShell: Microsoft Graph SDK, Exchange Online PowerShell module, bulk user operations, scheduled automation
- Monitoring: Microsoft 365 admin center service health, Defender portal, Azure Monitor, third-party tools (Veeam Backup for M365)
Desired Qualifications
- Consolidated revenues as of 12 months ending June 2026 totaled $14.8 billion.
Benefits
- You'll supercharge your potential.
- You'll find your career.
- You'll find your spark.
- A place that knows that helping its customers stay on top starts by putting its people first.
#Microsoft 365#Exchange Online#Microsoft Teams#SharePoint Online#Entra ID#Azure AD#Microsoft Defender#Microsoft Purview#PowerShell#Power Automate#Cloud#Administration