Systems Administrator Security Clearance

Position: Systems Administrator with Security Clearance
Amentum is seeking a Windows Systems Administrator to support our federal program in Warrenton, VA. Our mission is to operate and maintain the Distributed Continuity Integrated Network - Top Secret Enterprise Services (DCIN-TS ES). The DCIN-TS ES is a DoD provided, TS//SCI, integrated voice, video, and data, global communications network that facilitates collaboration among senior leaders and key staff. Responsibilities:
* 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 recover solutions
* 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 the 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, including establishment, updates, and repairs, while identifying 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 consistent and effective communication
* Respond to service requests and oversee the lifecycle tracking, documentation, and reporting of network systems and hardware assets
* Ensure compliance with disposal protocols, including the secure destruction of sensitive materials
* Utilize industry-standard tools to deliver remote support for desktop and peripheral devices, efficiently resolving technical issues while minimizing system downtime
* Maintain accurate records of technical incidents and service requests, escalating complex or unresolved issues according to 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 to support informed decision-making
* 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 Requirements:
* Active Top-Secret clearance with SCI or TS with the ability to acquire SCI
* High School Diploma plus 7 years of relevant experience
* Must possess one of the following 8140 IAT Level II or III baseline certifications: o Level II certs include - CCNA Security, GISCP, GSEC, Security+ CE, SSCP o Level III certs include - CASP CE, CCNP Security, CISA, CISSP (or Associate), GCED, GCIH
* Minimum 7 years of relevant Information Technology Experience
* Demonstrated experience administering enterprise software deployments using tools such as Microsoft Endpoint Configuration Manager (MECM)
* Hands-on experience with enterprise technologies, including Windows Server 2019, Citrix Virtual Desktop, VMware ESXi, Active Directory, DHCP, and Service Accounts
* Strong command of Group Policy for centralized management of user and computer settings across the domain
* Skilled in using Power Shell to automate administrative tasks and enhance system management efficiency
* Hands-on experience in VMware (vCenter, vSAN) and Nutanix Hyperconverged Infrastructure, including architecture, deployment, and the use of integrated management tools for efficient data center operations
* Solid understanding of networking principles, protocols, and configuration best practices to ensure secure, reliable, and high-performing IT environments
* Demonstrated experience implementing and managing data protection strategies and disaster recovery solutions to ensure business continuity and data integrity
* Familiarity with MS Office applications such as Excel, Word, Outlook, SharePoint, Project and Visio Preferred:
* Bachelor's degree in IT or related STEM field
* Experience with Service Now
* Microsoft Certified:
Windows Server Hybrid…