Systems Administrator

Join to apply for the Systems Administrator role at Amentum
.

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Systems Administrator to join our team of passionate individuals in Warrenton, VA
. In this role you will support challenging, mission‑critical projects that make a direct impact on the Nation’s security and intelligence mission.

The mission of the Lone Wolf program is to support, operate, and maintain the Distributed Continuity Integrated Network – Top Secret Enterprise Services (DCIN‑TS ES), a DoD‑provided, TS/SCI integrated voice, video, and data global communications network that facilitates collaboration among senior leaders and key staff.

The Lone Wolf Team is Mission Focused, Customer Oriented, Process Guided, and Solutions Driven. Candidates must be critical thinkers with a strong work ethic and be able to work independently or as part of a team in a dynamic environment. They should be detail‑oriented, quick to react to emerging problems, and able to rapidly adapt and learn new technologies.

• Administer and maintain Windows server environments, including Active Directory, DNS, DHCP, and Group Policy
• Manage and support virtualization platforms such as VMware and/or Hyper‑V
• Monitor system performance, review security logs, and apply critical updates and patches
• Implement robust backup strategies and disaster recovery solutions
• Ensure systems comply with organizational policies and security standards
• Manage IP address allocation, subnetting, and VLAN configurations
• Collaborate with network engineers to diagnose and resolve LAN, WAN, and Wi‑Fi connectivity issues
• Monitor critical network services like DNS and DHCP to ensure consistent system functionality
• Assist in reviewing firewall rules to support secure access to Windows servers
• Contribute to planning and deployment of VPNs, remote access solutions, and network segmentation strategies
• Troubleshoot shared infrastructure issues, including domain name resolution and authentication failures
• Serve as a primary point of contact for customer issues by diagnosing, resolving, and tracking problems; manage and maintain customer accounts, identify opportunities to improve customer service processes
• Provide responsive, multi‑channel support (via email, phone, and remote access) to end‑users, delivering timely troubleshooting and problem resolution; ensure high‑quality customer experience through effective communication
• Respond to service requests and oversee lifecycle tracking, documentation, and reporting of network systems and hardware assets; ensure compliance with disposal protocols, including secure destruction of sensitive materials
• Utilize industry‑standard tools to deliver remote support for desktop and peripheral devices, efficiently resolving technical issues while minimizing downtime
• Maintain accurate records of technical incidents and service requests, escalating complex or unresolved issues per established escalation procedures and organizational policies
• Administer enterprise software deployments using tools such as Microsoft Endpoint Configuration Manager (MECM), ensuring streamlined, secure, and automated application rollouts across all relevant systems
• Provide training and guidance to end‑users to enhance technology adoption and efficiency; regularly communicate key updates, insights, and technical recommendations to senior leadership
• Continuously research and evaluate emerging technologies, tools, and best practices to maintain current expertise and ensure the organization benefits from up‑to‑date knowledge in relevant IT domains
• Actively participate in cross‑functional and special projects, bringing technical insight and operational support to ensure successful outcomes aligned with organizational objectives

• Must have active Top‑Secret clearance with SCI or TS with the ability to acquire SCI
• Minimum 7 years of relevant Information Technology experience
• Proven independence in executing projects aligned with executive directives
• Experience administering enterprise software deployments using tools such as Microsoft Endpoint…