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Leidos

Senior Systems Administrator

Leidos

. Design, build, test and maintain scalable and stable technology solutions to meet mission needs .

Posted 10/21/2026full-timeUnited StatesSenior💰 $92,300 - $166,850 per yearWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in designing, building, and maintaining scalable technology solutions while utilizing Agile methodologies. Proficient in scripting and automation, with a strong focus on Windows environments and system hardening.

Highest-signal resume keywords
Active TS/SCI With PolygraphWindows Server 2012/2016 ExperienceScripting/Automation ProficiencyAgile Methodology ExperienceActive Directory And DNS Knowledge

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
ScriptingAutomationWindows Server 2012Windows Server 2016Active DirectoryDNSServer Patch ManagementSystem HardeningTroubleshootingAgile Methodology
Soft Skills
Team CollaborationGoal SettingProject Planning
Tools & Technologies
Windows PowerShellJiraConfluence
Certifications & Qualifications
Bachelor's DegreeMaster's DegreeTS/SCI Clearance
Industry Keywords
Dev OpsO&MMulti-Domain SystemsCost AnalysisRisk Analysis

Tech Stack

Tools & technologies
DNSTypeScript

About the role

Key responsibilities & impact
  • Design, build, test and maintain scalable and stable technology solutions to meet mission needs
  • Create documentation including flowcharts, diagrams, manuals and 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 and 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
  • Operate and maintain systems in Windows
  • Work in a team environment and coordinate with appropriate elements to meet design, development, deployment, and monitoring/securing objectives

Requirements

What you’ll need
  • Bachelors degree with 8+ years of prior relevant experience or Masters with 6+ 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
  • Experience with Windows 2012/2016
  • Experience with Active Directory and DNS
  • 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
  • Experience working in an Agile environment
  • Experience establishing goals and plans that meet project objectives

Benefits

Comp & perks
  • 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