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Senior IT Systems Administrator

Trident Systems
paid time off, short term disability, long term disability, tuition reimbursement, 401(k)
United States, Virginia, Fairfax
10201 Fairfax Boulevard (Show on map)
Sep 19, 2025

Position Title: Senior IT Systems Administrator
Requisition ID: 1668
Position Location: Fairfax, VA
Position Reports To: Manager, Software Engineering
Supervises Others: No

Trident has built a reputation as a trusted provider of aerospace and defense electronics & processing systems including digital RF & Optical command and control solutions and atmospheric and airborne sensors. Our three operating units: Space Electronic Systems (SES), Integrated C4ISR Systems (ICS) and Optical Precision Systems (OPS), lead the agile development approach which enables us to produce proven, purpose-built systems that solve our customers' mission critical challenges across space, air, land, and sea.

Position Summary

This position will be part of a team responsible for supporting Trident's C4I product infrastructure for one or multiple Department of Defense customers. The employee must have a knowledge of both Linux and Windows Operating System (OS) administration with a focus on applying security settings and will work closely with engineering to transition the maintenance, troubleshooting, and patching of the infrastructure supporting one or more of Trident's C4I products. The position requires broad knowledge across systems to support ESXi, virtual machine images, containerized deployment, physical systems (laptops, servers, tablets), and basic networking of those components. The ability to obtain a Secret security clearance is required.

Duties and Responsibilities

  • Manage and administer user accounts, perform server subsystem configuration, install software, perform backups, configuration management and general system maintenance.
  • Install, configure, and administer computer equipment, operating systems, and software to provide a robust and secure infrastructure that supports the C4I products.
  • Support the operations and maintenance of Linux systems (Debian-based) and Windows systems to maintain operational availability and a strong security posture through system configuration and patching maintenance.
  • Apply thorough diagnostic techniques to identify problems, investigate causes, and recommend solutions on the operational server infrastructure.
  • Create and maintain comprehensive documentation for all troubleshooting procedures.
  • Continuously evaluate, document, and implement all aspects of the supporting infrastructure, including weekly audits, patches and updates, establishing user accounts, updating hardware, software, maintenance logs, etc.
  • Document information regarding proposed changes to the hardware, software, and firmware components of the system operating environment(s).
  • Identify and develop new means and methods to support the deployment and operational use of one or more of Trident's C4I products.
  • Ability to support travel or off-site work, as needed.
  • Perform other duties as assigned.

Required Qualifications

  • Bachelor's degree in Computer Science (or related field) and 6 years of related experience OR graduate degree and 4 years of experience OR 10 years of related experience in lieu of a degree
  • Security+ Certification
  • Debian/Ubuntu and Windows Server/Workstation administration experience in a DoD or similarly regulated environment.
  • Familiarity with OS and software configuration and deployment tools (i.e. Git, CI/CD pipeline, etc.)
  • Hands-on VMWare ESXi (or Azure/AWS EC2) provisioning, snapshot, and patching experience.
  • Familiarity with CUI requirements for unclassified IT systems is preferred.
  • Experience with TCP/IP, DHCP, and NTP troubleshooting.
  • Familiar with CUI data handling and DoD patch-management cycles.
  • Experience with Antivirus and endpoint-protection management.
  • Ability to obtain a US government Secret security clearance which requires US citizenship.

Trident Systems reserves the right to change or assign other duties to this position.

Benefits

Hired applicants may be eligible for benefits including but not limited to:

  • Health benefits
  • Medical
  • Dental
  • Vision
  • Basic life with AD&D
  • Short term disability
  • Long term disability
  • Ancillary (Voluntary life with AD&D, accident, critical illness, hospital, and pet)
  • Spending accounts (HSA, FSA, and DCFSA)
  • Paid time off
  • Holidays
  • 401(k) (including automatic company contribution)
  • Tuition reimbursement
  • Leaves (Parental, pregnancy, and military)
  • Potential annual bonus

Trident Systems is an affirmative action and equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. To request reasonable accommodation to participate in the job application or interview process, please contact recruiting@tridsys.com.

Pay Transparency: The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. 41 CFR 60-1.35(c)

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