Sr. Systems Administrator

Description

Are you aseasoned Systems Administratorwho thrives onsolving complex technicalchallenges andkeeping mission-criticalenvironments operatingat peak performance? Are you passionateabout modern infrastructure, automation, and enablingAgilesoftware development insupport of nationalsecurity?

Leidos is seekingaSenior Systems Administratorto join the Maru Program ona high-performingteam supporting anIntelligence Communitycustomer on afast-paced Agileprogram. In thisrole, you'll workalongside talented engineers, DevSecOps practitioners, software developers, andcybersecurity experts tobuild, secure, andmaintain the infrastructurethat powers missionsuccess.

This is morethan a traditionalsystems administrationrole, you'll havethe opportunity tomodernize enterprise infrastructure, automate operations, strengthencybersecurity, and directlyenable rapid softwaredelivery for systemsthat make areal-world impact. If you're energizedbyinnovation, collaboration, and solving someof the nation'smost challenging technicalproblems, we'd loveto have youon our team.

Position Overview

As a SeniorSystems Administrator,you will administer, secure, and optimizeenterprise Windows andLinux environments supportingdevelopment, test, integration, and production systems. You'll play acritical role inensuring highly available, resilient, and secureinfrastructure while partneringwith Agile teamsto continuously improvesystem performance, reliability, and operational efficiency.

Please note Gaithersburg, MD is the program's primary work location.

Active Top Secret/SCI with the ability to successfully pass a Polygraph examination.

Primary Responsibilities:

• Administer and maintainWindows and Linuxserver environments.
• Install, configure, patch, and upgrade operatingsystems and enterpriseapplications.
• Monitor system health, performance, capacity,and availability.
• Support Agile developmentteams byprovisioning and maintainingdevelopment, test, staging, and production environments.
• Implement infrastructurechanges through establishedconfigurationmanagement and changecontrol processes.
• Troubleshoot hardware, software, networking, andstorage issues tominimize downtime.
• Collaborate with DevSecOpsengineers to automatesystem administration tasksusing scripting andInfrastructureas Code (IaC) tools.
• Maintain compliance withIC cybersecurity requirements, RMF controls,STIGs, and securitypolicies.
• Perform vulnerability remediation, security patching, andsystemhardening.
• Support virtualization platformssuch as VMwarevSphere or Nutanix.
• Manage Active Directory, GroupPolicy, DNS, DHCP, PKI, and identitymanagement services.
• Develop and maintainsystem documentation, standardoperating procedures,and architecture diagrams.
• Participate in Agileceremonies including sprintplanning, backlog refinement, standups, and retrospectives.
• Provide Tier IIIoperational support andparticipate in after-hours maintenance windowsas required.

Required Qualifications:

• US citizenship is required per contract.
• Bachelor's degree in Computer Science, Engineering, Information Technology or related field and 8-12 years of prior relevant experience or Master's with 6-10 years of prior relevant experience.
• 8+ years ofsystems administrationexperience supporting enterpriseenvironments.
• Experience supporting IntelligenceCommunity or Departmentof Defense customers.
• Strong experience administering:
  • Windows Server
  • Red Hat Enterprise Linux (RHEL)
  • VMware vSphere
  • Active Directory
  • DNS/DHCP
  • Group Policy
• Experience with scriptingusing PowerShell, Bash, or Python.
• DoD 8140/8570 Compliance: Must possess an active CompTIA Security+ (or higher baseline certification) to satisfy IAM Level I / IAT Level II requirements.
• Must possess at least one active Microsoft/Windows certification, such as:
  • Microsoft Certified: Windows Server Hybrid Administrator Associate
  • Microsoft Certified: Azure Administrator Associate (AZ-104)
  • Legacy MCSA / MCSE: Windows Server
• Must possess an active Red Hat Certified System Administrator (RHCSA) certification.
• Knowledge of storagetechnologies, backup solutions, and disaster recovery.
• Experience applying DISASTIGs and RMFsecuritycontrols.
• Familiarity with configurationmanagement and automationtools such asAnsible, Puppet, orChef.
• Experience using Gitand supporting CI/CD pipelines.
• Strong analytical, troubleshooting, and communication skills.

PreferredQualifications:

• Experience supporting cloudtechnologies such asAWS GovCloud, AzureGovernment, or C2S.
• Experience with Kubernetesand container platforms.
• Familiarity with Dockerand OpenShift.
• Experience with Infrastructureas Code (Terraform,CloudFormation, or Ansible).
• Knowledge of ElasticStack, Splunk, Grafana, or Prometheus.
• Experience supporting DevSecOpsenvironments.
• Understanding of ZeroTrust architecture principles.
• Experience with SAN/NAS administration.
• ITIL Certification (ITIL v3 Foundation, ITIL 4 Foundation, or higher) or an equivalent IT service management framework certification (e.g., COBIT, ISO/IEC 20000).

Desired Competencies:

• Strong customer serviceorientation.
• Excellent written andverbal communication skills.
• Ability to prioritizemultiple tasks ina dynamic Agileenvironment.
• Self-motivated withstrongattention to detail.
• Collaborative mindset withcross-functional technicalteams.
• Commitment to continuousprocessimprovement andautomation.

#Maru

#NSBA

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.

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.

The Leidos pay range for this job level is a general guideline onlyand 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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at

Securing Your Data

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If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.