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Senior SharePoint Backend Administrator

Job in Alexandria, Fairfax County, Virginia, 22350, USA
Listing for: Leidos
Full Time position
Listed on 2026-10-29
Job specializations:
  • IT/Tech
    M365, SharePoint & Power Platform, Systems Administrator
Salary/Wage Range or Industry Benchmark: 92300 - 166850 USD Yearly USD 92300.00 166850.00 YEAR
Job Description & How to Apply Below

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Our Mission, Vision, and Values guide the way we do business.

If this sounds like a mission you want to be a part of, keep reading! Leidos is seeking a Senior SharePoint System Administrator to support a large enterprise IT contract for the DOD. The SharePoint System Administrator will support infrastructure services, operations, and maintenance across multiple enclaves of different classifications with remote administration for server farms located in centralized data centers.

The SharePoint Admin shall deploy, operate, and maintain SharePoint services, including load balancing, PKI authentication, and claims-based authentication as well as support site setup, permission management, troubleshooting, and service requests for customers as well as content and knowledge managers. This individual will work in a team environment to ensure mission needs are met and ensure functionality of capabilities of customers.

This role requires an individual that is technical, customer oriented, and familiar with using SharePoint. This individual should be detail oriented in order to capture customer inquiries appropriately. Role requires excellent oral and written communication skills.

At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Primary Tasks
  • Interacting with site/collection owners to handle service inquiries and problems.
  • Provide implementation, troubleshooting and maintenance of IT systems.
  • Rapidly distinguish isolated user problems from enterprise-wide application/system problems.
  • Develop solutions for complex problems, update Knowledge Articles and Standard Operating Procedures (SOPs) to reflect changes to the environment.
  • Oversee SharePoint projects to include minor and major version upgrades, routine maintenance, and expansion of capabilities to meet emerging requirements.
  • Identify methods for direct integration with Identity, Credential, and Access Management (ICAM) technologies.
  • Assist users with manual migrations from older SharePoint versions to SharePoint 2019, SE or SharePoint Online.
  • Manage permissions of new and existing site collections and their associated lists, items etc.
  • Manage access to O365/M365 applications based on SharePoint technology such as Microsoft Teams, Microsoft One Drive, and SharePoint Online.
  • Conduct searches and purges of data from operational systems as required by cyber security, legal, compliance, FOIA, and other legitimate sources.
  • Manage asset library, risk database, and business rhythm calendar (Leidos best practice) to enhance situational awareness for stakeholders.
  • Coordinate with customers and stakeholders to collect data, conduct analysis, develop, and implement solutions associated with incident tickets and requirements.
  • Provide follow-up reports (technical findings, feedback, resolution steps taken, After Action Report (AAR) etc.) for Root Cause Analysis, engineering technical assessment, and process improvement initiatives.
  • Support customer requirements in a 24/7/365 mission environment with after‑hours outage response and support.
  • Update operations and maintenance documentation for 24/7/365 IT Operations Center personnel to assist with after‑hours…
Position Requirements
10+ Years work experience
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