Senior SharePoint Administrator
Company: Leidos
Location: Fort Belvoir
Posted on: April 1, 2026
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Job Description:
Leidos is seeking a Senior SharePoint Administrator to partner
on a large enterprise IT contract for the Department of War (DoW)
to support SharePoint operations across multiple geographic
locations. The ideal candidate will be a technical expert
responsible for installation, configuration, security, operation,
and maintenance of servers, equipment, and software related to the
SharePoint infrastructure. The candidate will ensure solutions meet
business needs and involves tasks such as managing permissions,
migrating content, troubleshooting issues, training users, and
integrating SharePoint with Microsoft and custom applications. The
Senior SharePoint Administrator will provide systems and software
operations and maintenance support in a large network enterprise,
multi-enclave environment. This individual will work in a team
environment to ensure mission needs are met and ensure
functionality of capabilities of customers. Primary
Responsibilities: Maintenance and Administration: Maintain and
administer Microsoft SharePoint 2016/2019 Servers, including daily
monitoring, troubleshooting and performance analysis. Installation
and Configuration: Install and configure SharePoint software and
related components at the server level, including SQL Server, web
server and application server. Customization: Customize the
platform to meet specific business requirements. Migration and
implementation: Execute the migration of content from the existing
SharePoint Infrastructure running on Windows Server 2016 to the new
Infrastructure that will run on Windows Server 2019, ensuring data
integrity and minimal disruption. Support the migration of legacy
SharePoint solutions from on-premises environments to SharePoint
Online. Oversee SharePoint projects to include minor and major
version upgrades, routine maintenance, and expansion of
capabilities to meet emerging requirements. Troubleshooting and
support: Log, analyze, and resolve technical issues, escalating to
vendors or other teams as needed. Integration: Integrate SharePoint
with other Microsoft 365 applications and the Power BI Platform.
Compliance and Governance: Understanding of National Institute of
Standards and Technology frameworks for cybersecurity and privacy.
Ensure that SharePoint solutions comply with DISA Security
Technical Implementation Guides (STIG) and complete STIG checklists
as required. 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. Security Best Practices: Configure
the SharePoint Infrastructure to comply with Microsoft Security,
Performance and Operations Best practices. Security Least
Privilege: Configure the SharePoint Infrastructure Administrative
Accounts to comply with the Principal of Least Privilege. Security
RBAC: Configure the SharePoint Infrastructure Administrative
Accounts to utilize Role-Based Access Control (RBAC). Security Zero
Trust: Configure the SharePoint Infrastructure Administrative
Accounts to Zero Trust Architecture. Rapidly distinguish and
resolve isolated user problems from enterprise-wide
application/system problems. Implement Identity and Access
Management (IdAM) policies and tools. Examine highly complex
customer problems in Windows, Macintosh, and UNIX desktop operating
systems (think of virtualized clients) imaging, desktop
applications, user profiles, and general system problems. Support
customer requirements in a 24/7/365 environment and schedule. Basic
Qualifications: The candidate must have bachelor’s degree with 8
years of prior relevant experience or a Master’s Degree with 6-10
years of prior relevant experience. Additional experience may be
taken into consideration in lieu of a degree. Strong knowledge of
SharePoint's functional capabilities, including site, page, list
creation, and permission management. Familiarity with SharePoint
2016, SharePoint 2019, and SharePoint Online. Experience with
InfoPath, Microsoft 365 and the Power BI Platform. Understanding of
authentication protocols like Kerberos, NTLM, and claims-based
authentication. Knowledge of related technologies like Active
Directory, Azure Active Directory, and Internet Information
Services (IIS). Client-side development skills using JavaScript
frameworks like TypeScript, as well as server-side development
skills for creating web parts. Experience with business
intelligence and dashboard development. Experience with interacting
with DoW customers to handle service, inquiries, and problems.
Experience working independently, without supervision, analyzing a
situation, designing, and communicating solutions to senior
management and customers at multiple worldwide locations. In-depth
understanding of SharePoint administration. In-depth understanding
of customer IdAM policies and tools. Experience with Tier 2 system
administration. Experience with Scripting/Automation. Experience
troubleshooting issues in a growing environment. Experience with
log reviews, incident analysis, and identification of issue trends.
Experience with SharePoint server patch management methodologies.
Time management skills. Ability to work independently. Excellent
oral and written communications skills. Track record of working
effectively within a team, and support to peers toward improved
processes and results. Experience with support ticket management
systems. Candidate must, at a minimum, meet DoD 8570.11- IAT Level
II certification requirements (currently Security CE,
CCNA-Security, GSEC, or SSCP). Ability to commute to the office on
the approved schedule. Preferred Qualifications: MS-102 Microsoft
365 Administrator Expert. AZ-800/801 Windows Server Hybrid
Administrator Associate. AZ-104 Azure Administrator Associate or
AZ-305 Azure Solutions Architect Expert. Clearance: An active
TS/SCI clearance is required for this position. Due to the nature
of the government contracts we support, US Citizenship is required.
If you're looking for comfort, keep scrolling. 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. Original Posting: January 26, 2026 For U.S.
Positions: While subject to change based on business needs, Leidos
reasonably anticipates that this job requisition will remain open
for at least 3 days with an anticipated close date of no earlier
than 3 days after the original posting date as listed above. Pay
Range: Pay Range $92,300.00 - $166,850.00 The Leidos pay range for
this job level is a general guideline only and not a guarantee of
compensation or salary. Additional factors considered in extending
an offer include (but are not limited to) responsibilities of the
job, education, experience, knowledge, skills, and abilities, as
well as internal equity, alignment with market data, applicable
bargaining agreement (if any), or other law.
Keywords: Leidos, Washington DC , Senior SharePoint Administrator, IT / Software / Systems , Fort Belvoir, DC
