✦ Luna Orbit — System Administration

Senior Network and Computer Systems Administrator

at DMI

📍 Remote, US Remote Posted April 07, 2026
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Position Details

Type Full-Time
Experience mid
Exp. Years 6+ years
Education Not specified
Category System Administration

About this role

Senior System Administrator to provide advanced administration and engineering support for TSA’s enterprise network and computing infrastructure across on-premises and cloud environments.

Key Responsibilities

  • Develop and maintain technical runbooks and SOPs
  • Coordinate patch management and configuration baselines
  • Troubleshoot complex infrastructure issues in lab and live environments
  • Support lifecycle engineering and aging infrastructure planning
  • Ensure TSA performance and security requirements are met

Technical Overview

Technical scope includes configuration management, system hardening, patch management coordination, SOPs, and support for lab and live environments; strong emphasis on DHS/FISMA and public Trust considerations.

Ideal Candidate

The ideal candidate is a senior systems administrator with 6+ years of hands-on experience in large enterprise environments, strong Windows Server/Active Directory expertise, DHS/FISMA experience, and ability to support TSA’s 24x7x365 operational environment remotely.

Must-Have Skills

6+ years hands-on network and systems administrationWindows ServerActive DirectoryVirtualization platformsEnterprise networkingFISMA compliance experienceDHS cybersecurity standardsU.S. citizenship

Nice-to-Have Skills

Public Trust background investigation

Tools & Platforms

Windows ServerActive DirectoryVMware

Required Skills

Windows ServerActive Directoryvirtualizationenterprise networkingFISMA complianceDHS cybersecurity standards

Hard Skills

Windows ServerActive DirectoryVirtualization platformsEnterprise networkingFISMA complianceDHS cybersecurity standards

Soft Skills

CollaborationProblem-solvingCommunicationAfter-hours availability

Industry & Role

Industry Government/Public Sector
Job Function Provide senior-level network and systems administration and engineering support for TSA’s distributed IT environment.
Role Subtype Systems Administrator
Tech Domains Active Directory, Windows Server, VMware, Networking / TCP-IP

Keywords for Your Resume

senior network and computer systems administratordmitsapublic trustfismadhs cybersecurity standardswindows serveractive directoryvmwarelab validationpost-transition operational testingcutover planningtsa environmento&m contractortalon portfolioafter-hours maintenancenetwork securityenterprise networkingu.s. citizen

Deal Breakers

U.S. citizenship required, Public Trust clearance

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