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About the Role
As Senior Microsoft 365 Administrator, you will ensure the security, reliability, and evolution of Microsoft 365. You will lead service migrations, maintain tenant security alignment, and collaborate with IT teams to support firm personnel.
Responsibilities
- Administer Exchange Online
- Manage Mimecast policies and configuration
- Help manage the firm’s email archiving solution
- Administer Entra ID: user and group lifecycle, licensing, and device registration
- Manage and troubleshoot hybrid identity, including Entra Connect sync with on-premises Active Directory
- Manage enterprise apps, app registrations, and B2B guest access
- Support periodic access reviews
- Support mobile devices on AirWatch and help move to Intune
- Support Teams, SharePoint, and OneDrive
- Work with Communications on AV conferencing equipment
- Support Purview and Defender implementations
- Run root cause analysis on cloud performance issues
- Document the services you manage
- Stay current on M365 developments and share knowledge
Requirements
- 7+ years as a Microsoft 365 Administrator, or comparable experience
- Hands-on administration of Exchange Online, Teams, SharePoint Online, Purview, Copilot, OneDrive, and Intune
- 3+ years administering Entra ID (formerly Azure AD), including hybrid identity with Entra Connect
- Working knowledge of Conditional Access, MFA, and SSO (SAML/OIDC)
- Experience with email security and mail gateway policy management
- Experience troubleshooting authentication and access issues across Exchange Online, Teams, OneDrive, and Intune
- Understanding of M365 integrations using Graph API
- Ability to spot problems early and propose solutions
- Ability to collaborate across IT and explain technical concepts clearly
- Ability to manage multiple projects simultaneously
- Ability to handle confidential information with discretion
- Availability for 24/7 support during critical issues
- BA degree (preferred)
- Experience in the legal industry (preferred)
- Microsoft 365 certification (Administrator Expert, MS-102) or SC-300 (preferred)
- Experience migrating MDM platforms, such as AirWatch to Intune (preferred)
- PowerShell or Graph automation for M365 and identity (preferred)
- Entra ID Governance experience: Privileged Identity Management, access reviews, entitlement management (preferred)
- Identity protection, risk-based policies, and sign-in log analysis (preferred)
- Experience with AI tools such as Copilot or Claude (preferred)
- Experience supporting AV and conferencing equipment (preferred)
Skills
- Microsoft 365
- Exchange Online
- Mimecast
- Entra ID
- Entra Connect
- Active Directory
- AirWatch
- Intune
- Teams
- SharePoint
- OneDrive
- Purview
- Defender
- Conditional Access
- MFA
- SSO
- SAML
- OIDC
- Graph API
- PowerShell
- AV conferencing equipment
- Copilot
- Claude
Location
- Palo Alto
- New York
- San Francisco
- Austin
- Boston
- Boulder
- Century City
- Delaware
- Los Angeles
- Salt Lake City
- San Diego
- Seattle
- Washington, D.C.
- Remote
Work Type
- Fully remote
Experience Level
- 7+ years as a Microsoft 365 Administrator
- 3+ years administering Entra ID
Education Level
- BA degree (preferred)
Salary/Compensations
- Palo Alto, New York, San Francisco: $131,750 - $178,250 per year
- Austin, Boston, Boulder, Century City, Delaware, Los Angeles, Salt Lake City, San Diego, Seattle, Washington, D.C., and all other locations: $119,000 - $161,000 per year
Benefits
- Highly competitive salary and benefits package
- Discretionary year-end merit bonus based on performance
About the Company
- Wilson Sonsini is the premier legal advisor to technology, life sciences, and other growth enterprises worldwide.
- We represent companies at every stage of development, from entrepreneurial start-ups to multibillion-dollar global corporations, as well as the venture firms, private equity firms, and investment banks that finance and advise them.
- The firm has approximately 1,100 attorneys in 17 offices: 13 in the U.S., two in China, and two in Europe.
- Our broad spectrum of practices and entrepreneurial spirit allow exceptional opportunities for professional achievement and career growth.
Equal Opportunity
- Equal Opportunity Employer (EOE)