Tier 2 Linux Administrator - TS/SCI with polygraph

General Dynamics
United States
Workplace: OnsiteFull timeUSD 110,500 - 149,500 annuallyFunction: Administration & Executive AssistanceExperience: 5+ yearsEducation: bachelorsSkills: ["Verbal communication","Written communication"]

Provide Tier 2 support for a Federal Intelligence Agency, supporting Linux-based (RHEL/CentOS/Ubuntu) infrastructure and secure Linux operations across multiple security enclaves. Perform advanced Linux troubleshooting, user management, permissions, and performance diagnostics while supporting Windows workstations and servers as needed (Active Directory, Group Policy, DNS, DHCP, DFS). Triage incidents, respond to escalations via ITSM tools, document issues, and maintain DoD 8570 compliance.

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General Dynamics
General Dynamics
1 month ago

Tier 2 Linux Administrator - TS/SCI with polygraph

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 19 hours agoStatus: Closed
Reposted: similar role first listed 1 month ago

Job Summary

Provide Tier 2 support for a Federal Intelligence Agency, supporting Linux-based (RHEL/CentOS/Ubuntu) infrastructure and secure Linux operations across multiple security enclaves. Perform advanced Linux troubleshooting, user management, permissions, and performance diagnostics while supporting Windows workstations and servers as needed (Active Directory, Group Policy, DNS, DHCP, DFS). Triage incidents, respond to escalations via ITSM tools, document issues, and maintain DoD 8570 compliance.
Location: United States
Workplace: Onsite
Employment Type: Full time
Job Function: Administration & Executive Assistance
Seniority: Mid level

Key Responsibilities

  • •Provide Tier 2 support for incident resolution and user issues in a mixed Windows/Linux enterprise environment.
  • •Perform Linux system administration on RHEL/CentOS/Ubuntu, including user management, permissions, and performance diagnostics.
  • •Support Windows workstations and servers, including Active Directory, Group Policy, DNS, DHCP, and DFS.
  • •Troubleshoot application crashes, system performance issues, and connectivity problems.
  • •Respond to service desk escalations using tools like ServiceNow or NETS, and provide documentation and incident reporting.

Pay and Benefits

Salary: USD 110,500 - 149,500 annually
Perks:Health InsuranceDentalVision Plan401kPaid Leave

Key Requirements

  • •Bachelor’s degree in Computer Science, Information Systems, or related field (or equivalent work/military experience).
  • •Minimum 5+ years of experience in systems administration with demonstrated Tier 2 support capabilities.
  • •Active TS/SCI with polygraph clearance.
  • •Current DoD 8570 IAT Level II certification (e.g., CompTIA Security+ CE, SSCP, or CCNA-Security).
  • •Must obtain Computing Environment (CE) training within six months of hire.
Experience:5+ years
Education:Bachelor's in Computer Science, Information Systems, or related field
Skills:Verbal communicationWritten communication
Certifications:DoD 8570 IAT Level IICompTIA Security+ CESSCPCCNA-Security
Tech Stack:LinuxRed Hat Enterprise Linux (RHEL)CentOSUbuntuMicrosoft Enterprise TechnologiesWindows 10Windows Server 2012Windows Server 2016Active DirectoryGroup PolicyDNSDHCPDFSLDAPMicrosoft OfficeOutlookExcelWordJavaWeb browsers

Eligibility

Nationality:US National
Security Clearance:Top Secret SCIPolygraph

Company Brief

General Dynamics
Provides IT, systems engineering, cybersecurity, cloud, and mission support services to U.S. federal civilian and defense agencies, delivering large-scale technology solutions and managed services for national security and government operations.
Industry: Defense Technology
Company Size: Enterprise (1,001+ employees)
Growth: Established Company
Headquarters: Tysons / Fairfax, United States
WebsiteLinkedIn