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Salary
$116k – $210k per year
Location
In office (McLean, United States)
Seniority
Principal · 12+ years exp
Visa
H-1B filings in 12 months: 50 · for this role: 24 · green card filings: 24
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Oct 14, 2026. Leidos scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Leidos is an American technology and engineering services company created in 2013 when Science Applications International Corporation split in two, with Leidos taking the technical services and solutions business. It is one of the largest suppliers to the United States government, working across defence programmes, intelligence systems, civil agencies including the Federal Aviation Administration, and healthcare services for the Department of Veterans Affairs. Headquartered in Reston, Virginia, the company also builds security detection products for airports and borders, and has concentrated recent investment on trusted artificial intelligence and autonomy for mission environments.

Leidos has a new and exciting opportunity for a Principal Systems Administrator in our Intel Sector's (IS) Solutions Analysis Business Area (ASBA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

Job Description

The Principal Systems Administrator will support the design, development and deployment of products, tools and capabilities in support of a dynamic customer enterprise. This role performs System Administration tasks on a customer’s system that supports mission needs and coordination requirements. This individual will work in a team environment and coordinate with appropriate elements to effectively meet design, development, deployment, and monitoring/securing objectives.

Primary Responsibilities:

  • Design, build, test and maintain scalable and stable technology solutions to meet mission needs
  • Create documentation to include flowcharts, diagrams, manuals and any other required or requested deliverables.
  • Use the Agile methodology to document requirements, configure, test, implement and support efficient solutions
  • Perform automation tasks through scripting and testing
  • Rotate between O&M to Dev Ops roles as required for Agile processes
  • Evaluate alternatives including cost and risk, supportability and analyses for total systems; resolve highly complex multi-domain systems issues
  • Operating and maintaining systems in Windows

Basic Qualifications:

  • Bachelors degree with 12+ years of prior relevant experience or Masters with 10+ years of prior relevant experience. Additional years of experience may be substituted in lieu of a degree.
  • Must have an active TS/SCI with a Polygraph, to be considered
  • In-depth of experience with Windows 2012/2016
  • Significant experience with Active Directory and DNS
  • Significant experience with hardening Windows environments
  • Demonstrated experience with Scripting/Automation
  • Experience troubleshooting issues in a growing environment
  • Experience with server patch management methodologies
  • Familiarity working with Window’s PowerShell.
  • Experience working with Jira and Confluence.
  • Significant experience working in an Agile environment
  • Significant experience establishing goals and plans that meet project objectives.

#CABARESTON

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:

October 14, 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 $116,350.00 - $210,325.00

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.

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