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System Administrator

Job in Arlington, Arlington County, Virginia, 22201, USA
Listing for: Apogee Research, LLC
Full Time position
Listed on 2026-01-12
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

Join to apply for the System Administrator role at Apogee Research, LLC
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Apogee Research brings cutting‑edge research into practice for the DoD community. We blend agility with rigor to develop new technologies and transition them into operational use. Founded in 2012, Apogee Research brings together cross‑discipline teams to solve difficult and often deemed impossible problems across a range of different technical domains. At Apogee Research we work hard, we get things done, and we do it together.

This role is critical to maintaining the availability, integrity, and security of Apogee’s Windows, Red Hat, and virtualized environments in compliance with Department of Defense (DoD) regulations and NIST standards (SP 800‑171, SP 800‑53, SP 800‑30). The System Administrator will configure, maintain, and troubleshoot systems, implement security controls, and support compliance efforts through system hardening, patch management, and documentation. This position requires proficiency in systems administration, a proactive approach to problem‑solving, and the ability to collaborate with security and IT teams to uphold a robust security posture in a fast‑paced R&D environment.

Key Responsibilities
  • Configure, maintain, and administer a blended Windows/Linux infrastructure environment, including:
  • System deployment – Hardware assembly, OS installation and configuration, permissions configuration, and security hardening
  • System maintenance – User management, installation, configuration, and update of software, patches, and firmware
  • System optimization – Monitor system performance and health to identify opportunities for performance improvement, implement system tuning
  • Automation – Scripting routine tasks using BASH, Python, Ansible, Kickstart, and Power Shell
  • Linux system administration including identifying and troubleshooting issues with permissions and user rights, networking, performance and responsiveness, and system functionality problems resulting from security hardening
  • Coordinate with project engineering teams to understand their project needs, gather requirements, and customize provided services to meet those needs
  • Support and administration of security and management systems (switches, firewalls, domain controllers, virtualization stack) in accordance with candidate’s expertise
  • In‑person, voice, and chat support to users for laptop configuration, network settings, hardware peripherals, and standard end‑user applications
  • Routine audits of systems and software, including log analysis
  • Perform system backups, Assured File Transfers, and secure decommissioning of hardware in compliance with DoD policies
  • Implement and verify Security Technical Implementation Guides (STIGs) and security controls per NIST SP 800‑53 and NIST SP 800‑171 for classified and Controlled Unclassified Information (CUI) networks (WAN, ISOL, LAN)
  • Support vulnerability scanning and remediation using approved tools (i.e., Nessus and Wazuh)
  • Deploy and maintain log aggregators (i.e., Kibana and Wazuh)
  • Coordinate and collaborate with the ISSO, ISSM, Contract Program Security Officer (CPSO)/Facility Security Officer (FSO), and IT teams to implement and enforce system security controls through incident reporting and investigation, system and process documentation, and establishment and maintenance of configuration management baselines
  • Participate in recurring assessment activities (Incident Management Drills, Security Configuration Board Meetings, Change Control Board meetings) and preparation of ongoing security reporting (Risk Assessment Reports, Continuous Monitoring Plans, System Change Requests, Security Control Traceability Matrices, and Plan of Action and Milestones)
  • Support cyber awareness training by providing technical input on system usage and security best practices.
Requirements For Position
  • Bachelor’s Degree and 4+ years as a System Administrator or IT specialist (additional experience is considered in lieu of degree).
  • Full‑Time, In‑Person
  • Hands‑on system administration experience, including command line/shell activity, with Windows Server (2019/2022), Windows 10/11, Red Hat, and other Linux distributions in enterprise or DoD environments.
  • Expe…
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