Demo

Junior Systems Administrator

Lensa
Reston, VA Full Time
POSTED ON 11/20/2025 CLOSED ON 12/17/2025

What are the responsibilities and job description for the Junior Systems Administrator position at Lensa?

Lensa is a career site that helps job seekers find great jobs in the US. We are not a staffing firm or agency. Lensa does not hire directly for these jobs, but promotes jobs on LinkedIn on behalf of its direct clients, recruitment ad agencies, and marketing partners. Lensa partners with DirectEmployers to promote this job for SOS International LLC. Clicking "Apply Now" or "Read more" on Lensa redirects you to the job board/employer site. Any information collected there is subject to their terms and privacy notice.

Overview

SOSi is seeking a dedicated and technically skilled Junior Systems Administrator to join our dynamic IT team supporting our government customer. This role primarily focuses on handling Tier 2 service desk tickets, providing in-depth technical support, and maintaining systems across a secure network environment. The ideal candidate is detail-oriented, proactive, and eager to grow in a fast-paced, mission-driven environment.

Essential Job Duties

  • Provide Tier 2 support for escalated technical issues via service desk tickets.
  • Troubleshoot hardware, software, network, and application issues.
  • Collaborate with senior administrators and engineers to resolve complex technical challenges.
  • Maintain user accounts, system backups, and patch management processes.
  • Document resolutions and contribute to the IT knowledge base.
  • Adhere to ITIL processes and maintain compliance with DoD cybersecurity policies.
  • Support infrastructure projects and system upgrades as needed.

Minimum Requirements

  • Minimum 3 years of experience on an IT service desk with demonstrated escalation support.
  • Associates degree in an IT-related field (or two years of IT experience in lieu of degree).
  • ITIL 4 Foundations certification.
  • MCSA: Windows Server 2016 or higher-level server certification.
  • IAT Level II certification (e.g., CompTIA Security CE, CSA , GSEC).
  • Active DoD Secret Clearance.
  • Strong communication skills and the ability to work effectively with cross-functional teams.

Preferred Qualifications

  • Microsoft Certified: Azure Administrator Associate (AZ-104).
  • VMware Certified Professional (VCP) certification.
  • Proficiency with workstation, application server, and database server platforms.
  • Experience supporting DoD, especially Army environments.
  • Fluency in a foreign language is a plus.

Work Environment

  • Working conditions are normal for an office environment.
  • Fast paced, deadline-oriented environment.

Working at SOSi

All interested individuals will receive consideration and will not be discriminated against for any reason.

SOSi is an equal employment opportunity employer and affirmative action employer. All interested individuals will receive consideration and will not be discriminated against on the basis of race, color, religion, sex, national origin, disability, age, sexual orientation, gender identity, genetic information, or protected veteran status. SOSi takes affirmative action in support of its policy to advance diversity and inclusion of individuals who are minorities, women, protected veterans, and individuals with disabilities.

If you have questions about this posting, please contact support@lensa.com
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Salary.com Estimation for Junior Systems Administrator in Reston, VA
$89,837 to $113,992
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