Senior SharePoint Backend Administrator

Leidos•Alexandria, VA

14d•$92,300 - $166,850

About The Position

Leidos is seeking a Senior SharePoint System Administrator to support a large enterprise IT contract for the Department of Defense. The role supports infrastructure services, operations, and maintenance across multiple classified enclaves, including remote administration of server farms in centralized data centers. The administrator deploys, operates, and maintains SharePoint services—including load balancing, PKI authentication, and claims-based authentication—and supports site setup, permission management, troubleshooting, and customer service requests. The role works with customers and content and knowledge managers in a team environment to meet mission needs and maintain capability functionality. This is a technical, customer-oriented role requiring familiarity with SharePoint, attention to detail in documenting customer inquiries, and strong oral and written communication skills. The position supports a 24/7/365 mission environment, including after-hours outage response and scheduled maintenance during approved maintenance windows. The role requires a bachelor's degree with 8 years of relevant experience, a master's degree with 6 years, an associate degree with 10 years, or a high school diploma with 12 years. Candidates must meet DoDM 8140.03 (previously DoD 8570) IT System Administrator Intermediate certification requirements, such as Cloud+, GICSP, SSCP, Security+ CE, GSEC, or higher. U.S. citizenship is required. The clearance requirement is TS/SCI with a specific polygraph, or TS/SCI and willingness to complete a polygraph.

Requirements

Strong experience with SharePoint 2013, 2016, 2019, SE, and SharePoint Online.
Strong experience configuring, installing, and securing SharePoint systems.
Experience managing SQL clusters in support of SharePoint farms.
Experience performing patch maintenance for SQL clusters and SharePoint farms.
Experience with PKI authentication and claims-based authentication.
Experience using load balancers such as F5 BigIP Load Traffic Manager or Citrix NetScaler.
Strong experience managing Microsoft 365/Office 365 cloud offerings, including Microsoft Teams, Microsoft OneDrive, and SharePoint Online.
Experience with routine maintenance processes and willingness to conduct scheduled maintenance during approved maintenance windows.
Experience with change management fundamentals, including planning, execution, and documentation of changes.
Experience with Tier 2 and Tier 3 system administration.
Experience troubleshooting issues in a growing environment.
Experience with reviews, incident analysis, and identifying issue trends.
Time management skills.
Strong oral and written communication skills.
Ability to work effectively on a team and support peers in improving processes and results.
Experience with IT Service Management ticketing systems such as ServiceNow.
Bachelor's degree and 8 years of relevant experience, master's degree and 6 years, associate degree and 10 years, or high school diploma and 12 years.
At minimum, a DoDM 8140.03 (previously DoD 8570) IT System Administrator Intermediate certification, such as Cloud+, GICSP, SSCP, Security+ CE, GSEC, or higher.
U.S. citizenship.
TS/SCI with a specific polygraph, or TS/SCI and willingness to complete a polygraph.

Nice To Haves

Relevant certification in SharePoint, Microsoft 365/Office 365, or similar technology.
Familiarity with Nintex, InfoPath, and/or Power BI for creating and managing workflows.
Experience configuring and managing SPPatchify for patch maintenance of large SharePoint farms.
Microsoft 365 Certified: Administrator Expert or an equivalent certification related to SharePoint, Teams, OneDrive, and their administration.

Responsibilities

Interact with site and collection owners to handle service inquiries and problems.
Implement, troubleshoot, and maintain IT systems.
Distinguish isolated user problems from enterprise-wide application or system problems.
Develop solutions for complex problems and update Knowledge Articles and Standard Operating Procedures to reflect environmental changes.
Oversee SharePoint projects, including version upgrades, routine maintenance, and capability expansion to meet emerging requirements.
Identify ways to integrate directly with Identity, Credential, and Access Management technologies.
Assist users with manual migrations from older SharePoint versions to SharePoint 2019, SE, or SharePoint Online.
Manage permissions for new and existing site collections and their associated lists and items.
Manage access to Microsoft 365/Office 365 applications based on SharePoint technology, including Microsoft Teams, Microsoft OneDrive, and SharePoint Online.
Conduct data searches and purges from operational systems when required by cybersecurity, legal, compliance, FOIA, or other legitimate sources.
Manage the asset library, risk database, and business rhythm calendar to improve stakeholder situational awareness.
Coordinate with customers and stakeholders to collect data, conduct analysis, and develop and implement solutions for incident tickets and requirements.
Provide follow-up reports, including technical findings, feedback, resolution steps, and After Action Reports, to support root cause analysis, engineering assessments, and process improvement.
Support customer requirements in a 24/7/365 mission environment, including after-hours outage response and support.
Update operations and maintenance documentation for 24/7/365 IT Operations Center personnel to support after-hours triage and troubleshooting of common SharePoint problems.
Configure, install, secure, and maintain SharePoint systems and farms, including patch maintenance.
Manage SQL clusters supporting SharePoint farms and perform related patch maintenance.
Perform Tier 2 and Tier 3 system administration and troubleshoot issues in a growing environment.
Apply change management fundamentals to plan, execute, and document environmental changes.
Use IT service management ticketing systems such as ServiceNow.