M365 SharePoint Support Specialist Contractor

The Michelle Martin Group•Arlington, VA

1d•$45 - $47•Remote

About The Position

The Michelle Martin Group (MMG) is seeking a M365 SharePoint Support Specialist to administer, secure, and improve a Microsoft 365 SharePoint Online environment in GCC High. The role focuses on secure collaboration with external users, effective site governance, and practical solutions that support business needs while maintaining government cloud security and compliance expectations. The specialist will administer SharePoint Online, support secure guest access and external sharing, and maintain governance and data protection controls. They will collaborate with IT, security and compliance teams, internal and external users to resolve issues, document processes, and improve collaboration. This is a temporary contract assignment expected to last approximately six months, starting as soon as possible. The position is remote and pays $45–$47 per hour, depending on experience.

Requirements

Hands-on experience administering SharePoint Online in M365 GCC or GCC High, including site architecture, permissions, external sharing controls, and search and content governance.
Knowledge of SharePoint and OneDrive external sharing best practices, including link types, expiration, restrictions on Anyone links, site-level overrides, and auditing or monitoring.
Familiarity with scripting and tools such as PowerShell modules for SharePoint or Power Platform administration, PPAC, and SharePoint Admin Center.
Strong communication skills for collaborating with external customers and internal stakeholders.
Ability to write SOPs and deliver brief training as needed.
U.S. citizenship.

Nice To Haves

Experience operating in U.S. Government cloud tenants (GCC High) and awareness of feature differences from commercial tenants, including service availability nuances and cross-cloud B2B prerequisites.
Experience balancing security and collaboration for external partners through project-based guest access, least-privilege site design, domain allow lists, and modernization of legacy sharing models.
Familiarity with Power Platform Center of Excellence concepts, including environment strategy, ALM pipelines, maker onboarding, monitoring, and analytics.
Knowledge of advanced DLP patterns, including connector actions, tenant baselines, environment exceptions, and related PowerShell administration.
Experience coordinating with compliance teams regarding GCC High commitments, including data residency, screened personnel access, and eligibility.
Experience building and maintaining Power Apps, preferably Canvas or model-driven apps, and Power Automate flows that integrate with SharePoint and approved connectors.
Ability to design and enforce Power Platform DLP policies at tenant and environment scope, configure connector grouping and blocked actions, and explain their impact to makers and stakeholders.

Responsibilities

Design and build modern SharePoint sites, pages, lists, libraries, forms, workflows, and business solutions in SharePoint Online GCC High.
Manage site collections, permissions, hub and site architecture, content lifecycle, and sharing settings in alignment with U.S. Government cloud feature nuances and compliance expectations.
Configure and operate guest workflows, including inbound and outbound access, domain restrictions, and invitation redemption.
Implement and tune organization- and site-level SharePoint and OneDrive external sharing policies, including link types, expiration, domain allow/deny lists, auditing, and modernization of legacy sharing practices.
Create and maintain Data Loss Prevention policies, connector classifications, and environment scopes.
Produce administrator and user documentation, including site standards, sharing procedures, guest management SOPs, Power Platform solution guides, technical manuals, and training materials.
Triage and resolve SharePoint and Power Platform issues and provide technical support to users, site owners, content managers, and project teams.
Support periodic onboarding of external customer teams into the tenant using approved processes and controls.
Manage security groups, access permissions, sharing settings, and governance controls in line with organizational policies.
Collaborate with security teams to align configurations with GCC High commitments, including data residency, screened personnel access, and U.S. Government cloud isolation.