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Principal System Administrator - Windows/Linux

RTX

$82,000 - $164,000
Sep 26, 2025
Marlborough, MA, USA
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The DT - Information Workplace Services team needs a Principal Systems Administrator / Analyst to support fast-paced, critical programs with classified information system capabilities by developing, implementing, and maintaining secure, cost-efficient 24x7 environments and solving complex IT infrastructure problems.

Requirements

  • Minimum 5 years of direct systems analysis / administration / networking experience with combinations of technologies such as: Active Directory, WSUS, VMware, Veeam, MySQL, Remote Desktop Gateway, and Splunk, Windows or Linux administration; experience with backup and recovery enterprise suites.
  • Experience supporting Windows Server architectures to include troubleshooting solutions and documentation of technical problems / actions.
  • Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.

Responsibilities

  • Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment supporting Windows Server internals and/or Linux fundamentals to include DNS, DHCP, AD, and server replication methods.
  • Working as a team member in a fast-paced technological environment.
  • Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS).
  • Using data RAID and data backup technologies; installation an configuration of software applications; work with Cybersecurity professionals to maintain security requirements and provide documentation and training on advanced IT processes and procedures.

Other

  • The ability to obtain and maintain a U.S. government issued security clearance is required.
  • U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
  • The ability to obtain and maintain a U.S. government DoD Secret security clearance is required.
  • Typically requires a University Degree and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience