Senior Microsoft 365 Collaboration Architect

Liberty Personnel Services, Inc.; Philadelphia (Philadelphia County); On-site; USD 140,000 - 200,000; Full time

Job summary

Liberty Personnel Services, Inc. is seeking a Senior Engineer for Collaboration and Productivity to own the backbone of how the enterprise works in Microsoft 365. You will shape Exchange Online, Teams, SharePoint Online, OneDrive, and Azure AD across hybrid environments.

You’ll design scalable, secure, and compliant collaboration architectures, lead cross-team efforts, and mentor other engineers. The role emphasizes deep technical leadership and hands-on delivery in a large enterprise.

Qualifications

• 10+ years with Exchange (on-premises and/or Online) and Microsoft 365 suite.
• Deep experience with Exchange Online, Teams, SharePoint Online, OneDrive.
• Strong knowledge of 365 architecture and hybrid setups.
• Experience with Azure AD / Entra ID and security concepts.
• Background in messaging transport, compliance, retention, and DLP.

Responsibilities

• Design, implement, and maintain enterprise-grade collaboration solutions across Exchange Online, Teams, SharePoint Online, and OneDrive.
• Lead technical efforts for mail flow, security, hybrid configurations, compliance, and information protection.
• Architect and optimize collaboration experiences across Teams, SharePoint, and OneDrive governance.
• Troubleshoot identity, authentication, hybrid connectivity, mail routing, and content management.
• Create technical documentation, runbooks, and mentor engineers in the collaboration space.
• Participate in capacity planning and performance tuning for collaboration workloads.

Skills

Exchange expertise

Microsoft 365 architecture

Azure AD / Entra ID

Security & compliance

Hybrid environments

Tools

PowerShell

Microsoft Graph

Job description

Liberty Personnel Services, Inc. is seeking a Senior Engineer for Collaboration and Productivity to own the backbone of how the enterprise works in Microsoft 365. You will shape Exchange Online, Teams, SharePoint Online, OneDrive, and Azure AD across hybrid environments.

You’ll design scalable, secure, and compliant collaboration architectures, lead cross-team efforts, and mentor other engineers. The role emphasizes deep technical leadership and hands-on delivery in a large enterprise.