Senior Microsoft 365 Administrator

Wilson Sonsini Goodrich & Rosati, Professional Corporation; Palo Alto (CA); Remote; USD 132,000 - 178,000; Full time

Job summary

Wilson Sonsini Goodrich & Rosati, Professional Corporation seeks a Senior Microsoft 365 Administrator to lead the migration to Microsoft 365, ensure security and reliability, and align tenants with firm security and risk standards. This is a fully remote opportunity supporting attorneys, practice groups, and administrative teams.

You will collaborate with IT Operations, Security, Risk, Applications, and Communications to support attorneys and staff, manage Exchange Online, Entra ID, and hybrid

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.

Responsibilities

• Email and security administration.
• Administer Exchange Online.
• Manage Mimecast policies and configuration (spam, malware, and other threats).
• Help manage the firm’s email archiving solution.
• Identity and access management.
• Administer Entra ID: user/group lifecycle, licensing, device registration.

Skills

Exchange Online

Entra ID

M365 Administration

Hybrid Identity

MFA & SSO

Education

BA degree

Tools

Exchange Online

Teams

SharePoint Online

Purview

Intune

Entra ID

Graph API

Job description

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. Microsoft 365 is where our attorneys and staff do their work every day. 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

Education and/or Work Experience 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

Working Mentality

• 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 discretionf>You’re available for 24/7 support when critical issues arise

Preferred qualifications

• 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

The primary location for this job posting is in Palo Alto, but other locations may be listed.

The actual base pay offered will depend upon a variety of factors, including but not limited to the selected candidate’s qualifications, years of relevant experience, level of education, professional certifications and licenses, and work location.

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. Benefits information can be found here.

Equal Opportunity Employer (EOE). careers.wsgr.com

Wilson Sonsini is the premier legal advisor to technology, life sciences, and growth enterprises worldwide, as well as the venture firms, private equity firms, and investment banks that finance them. We represent more than 300 public enterprises and 3,000 private companies in a wide range of today’s cutting‑edge industries, from AI and fintech to life sciences and mobility. For more than 60 years, our attorneys and professional staff have created a unique working environment. With deep roots in the fast‑paced and innovative world of Silicon Valley, the firm fosters an entrepreneurial spirit and team‑oriented approach for all employees, providing professional and personal development opportunities and encouraging all departments to promote a stable and optimal work/life balance. Wilson Sonsini is committed to creating a diverse and inclusive workforce globally. We have built a culture in which employees of all backgrounds, viewpoints, and experiences are encouraged and empowered to achieve their maximum potential. Our firm is consistently recognized among the top law firms in annual diversity rankings. For example, Wilson Sonsini ranked No. 2 among firms with more than 601 attorneys in Law360’s 2025 Diversity Snapshot. Additionally, in 2025, for the seventh consecutive year, Wilson Sonsini achieved Mansfield Plus Certification, and in 2026, for the sixth consecutive year, the firm achieved a top score of 100 on the Human Rights Campaign Foundation’s Corporate Equality Index. We are also dedicated to enhancing the communities in which we live and work by providing legal services, financial support, and volunteer services to worthy agencies and individuals in need. In 2025, Wilson Sonsini attorneys and staff provided more than 80,500 pro bono hours, participated in 125 community service projects, and raised over $130,000 for charitable organizations and causes. In addition, the Wilson Sonsini Foundation contributed more than $2.35 million to 112 law‑related organizations and 129 community organizations in 2025. Wilson Sonsini has 17 offices in 16 technology and business hubs worldwide. Austin, TX Boston, MA Boulder, CO Brussels, Belgium Century City, CA Hong Kong London Los Angeles, CA New York, NY Palo Alto, CA Salt Lake City, UT San Diego, CA San Francisco, CA Seattle, WA Shanghai (China) Washington, D.C. Wilmington, DE