[Hiring] Senior Microsoft 365 Administrator @Wilson Sonsini

Role Description

As Senior Microsoft 365 Administrator, you’ll keep it secure, reliable, and evolving. You’ll lead the migration of key services into M365, keep our tenants aligned with firm security and risk standards, and partner with IT Operations, Security, Risk, Applications, and Communications to support attorneys, practice groups, and administrative teams. This is a fully remote opportunity.

Essential Duties and Responsibilities:

• Email and security
  • Administer Exchange Online
  • Manage Mimecast policies and configuration (spam, malware, and other threats)
  • Help manage the firm’s email archiving solution
• Identity and access
  • 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, and support periodic access reviews
• Mobile devices
  • Support mobile devices on AirWatch and help move us to Intune
• Collaboration and conferencing
  • Support Teams, SharePoint, and OneDrive
  • Work with Communications on AV conferencing equipment
• Security, compliance, and performance
  • Support our Purview and Defender implementations alongside IT Security and Risk
  • Run root cause analysis on cloud performance issues to restore service quickly and stop repeat problems
• Documentation and knowledge sharing
  • Document the services you manage
  • Stay current on M365 developments and share what you learn with IT engineers and developers

Qualifications

• 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

Requirements

• You spot problems early and come with solutions
• You collaborate across IT and explain things clearly to both engineers and non-technical audiences
• You keep multiple projects moving at once
• You handle confidential information with discretion
• You’re available for 24/7 support when critical issues arise

Preferred

• BA; experience in the legal industry
• Microsoft 365 certification (Administrator Expert, MS-102) or SC-300
• Experience migrating MDM platforms, such as AirWatch to Intune
• PowerShell or Graph automation for M365 and identity
• Entra ID Governance experience: Privileged Identity Management, access reviews, entitlement management
• Identity protection, risk-based policies, and sign-in log analysis
• Experience with AI tools such as Copilot or Claude
• Experience supporting AV and conferencing equipment

Benefits

• The anticipated pay range for this position is as follows:
  • 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
• The compensation for this position may include a discretionary year-end merit bonus based on performance.
• We offer a highly competitive salary and benefits package.