Senior Microsoft 365 Administrator

Orbis Ops • McLean, VA

1d

About The Position

Orbis is looking for a Senior Microsoft 365 Administrator who has grown up in the Microsoft ecosystem, uses Claude as a core part of how they work, and shows up every day with a servant mindset and an instinct to find yes. This is a hands-on, people-facing role at the center of how Orbis operates. Every employee will know your name and be glad they do.

Requirements

• 6+ years of deep, hands-on Microsoft 365 and Entra ID administration
• Microsoft 365 Certified: Administrator Expert (MS-102)
• Expert-level knowledge of Exchange Online, Teams, SharePoint, and OneDrive
• Strong Entra ID depth – Conditional Access, identity governance, SSO federation, SCIM provisioning
• Intune endpoint management including compliance policies, app deployment, and configuration profiles
• Jamf Pro experience for Mac fleet management
• Apple Business Manager and Windows Autopilot fluency
• Active Claude user – you use it to move faster, write better, and solve harder problems

Nice To Haves

• AZ-104 or SC-300 certification
• Experience in a defense or national security environment
• Familiarity with Cyber Essentials Plus or CMMC 2.0 compliance frameworks
• PowerShell scripting comfort

Responsibilities

• Own the M365 tenant end to end – users, groups, licenses, Exchange Online, Teams, SharePoint, OneDrive, and Defender
• Manage the full Entra ID identity lifecycle – provisioning, offboarding, MFA, Conditional Access, SSO, and SCIM
• Maintain and enforce security and compliance policies across the M365 environment
• Procure, enroll, configure, and manage the end device fleet across Mac and Windows
• Enforce device compliance policies via Intune and Jamf Pro
• Manage Apple Business Manager and Windows Autopilot enrollment workflows
• Own asset tracking, warranty management, and device refresh cycles
• Serve as the first and last point of contact for employee technology issues – you own it until it’s closed
• Deliver a best-in-class new hire technology experience on day one
• Own IT onboarding and offboarding end to end – from pre-day-one provisioning and equipment readiness through full access revocation, device retrieval, and account deactivation at separation
• Use Claude daily to accelerate documentation, troubleshooting, scripting, and communication
• Maintain documentation that is useful

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed