Sr Collaboration Platform Designer with Security Clearance

Job Title: Senior Collaboration Platform Designer
Location: Washington, DC
Type: Contract
$47 per hour
Work Model: Onsite – onsite
Hours: 40.0 hours/week
Security Clearance: Active public trust and/or DOT onboarded is a strong plus Overview
We're seeking a Senior Microsoft 365/SharePoint Engineer with strong experience supporting SharePoint Online, Microsoft Teams, OneDrive, and the Power Platform in an enterprise environment. This role will focus on administration, governance, migrations, automation, troubleshooting, and building Power Apps, Power Automate workflows, and Power BI dashboards.

Experience with PowerShell, Microsoft 365 security, and SharePoint migrations is essential, while an Active Public Trust is a strong plus.

Responsibilities Support and administer SharePoint Online, Microsoft Teams, OneDrive for Business, and Microsoft 365 Groups, managing site collections, Teams, channels, permissions, and sharing using least-privilege principles
Configure and maintain collaboration governance including external sharing, retention, sensitivity labels, and lifecycle policies
Monitor platform health, service health, and adoption reports via Microsoft 365 admin centers and usage analytics
Troubleshoot production issues, perform root-cause analysis, and resolve problems to meet SLA
Support multiple environments across development, test, and production tenants
Design, build, and maintain business solutions using Power Apps, Dataverse, and SharePoint lists
Automate workflows and processes with Power Automate flows (cloud and desktop/RPA), including approvals and event-driven workflows
Develop Power BI dashboards and reports for operational and SLA reporting
Lead migration initiatives, including on-premises SharePoint (2010/2013/2016) to SharePoint Online, and tenant-to-tenant migrations
Assist with migration planning, content analysis, document library, site, and dependency migration, and support cutover, post-migration validation, and stabilization
Support modernizing legacy SharePoint customizations into modern solutions for SharePoint, Teams, and Power Platform
Integrate Microsoft 365 services with enterprise systems, including identity platforms like Microsoft Entra ID and Azure AD
Support application governance, lifecycle management, and enterprise security and compliance standards
Support enterprise identity integrations, including Microsoft Entra ID, Azure AD, and Single Sign-On (SSO)
Assist business teams and developers with site provisioning, environment setup, and governance standards
Requirements Active public trust and/or DOT onboarding is a strong plus
8+ years of hands-on experience designing and supporting SharePoint and collaboration platforms in production environments
Proven expertise administering and supporting Microsoft 365: SharePoint Online, Microsoft Teams, OneDrive, and Microsoft 365 Groups
Hands-on experience with governance, permissions, and lifecycle management
Extensive experience with Power Platform: Power Apps, Power Automate, Power BI
Experience supporting migrations (on-prem SharePoint to SharePoint Online and tenant-to-tenant)
Proficiency with PowerShell for SharePoint Online and Microsoft 365 administration
Strong troubleshooting, documentation, and communication skills; able to work independently and across teams
Basic working knowledge of Google Workspace collaboration tools such as Gmail, Drive, Docs, and Meet
Nice-to-have: Experience at scale with Power Platform, enterprise workflows, Azure, custom app integration, and security best practices
Microsoft certifications (e.g., MS-700, PL-900/PL-100/PL-400, SC-400, MS-102) - optional