Link Solutions is seeking a Windows System Administrator (Senior-Level) to join our team at Adelphi, MD.Must be a US Citizen Must have an active DoD Top Secret ClearanceNon-remote (relocation incentive available)The Windows System Administrator (Senior-Level) will be responsible for the installation, configuration, maintenance, and security of Windows-based workstations and services at the Army Research Laboratory in Adelphi, MD. You will be a part of a diverse team supporting a globally distributed information systems, responsible for the analysis, administration, voice, video, and data communications networks.Join our dynamic team at a top-tier organization, where work-life balance and employee well-being take center stage. This exciting opportunity lets you contribute to cutting-edge projects while safeguarding our national security. Job Responsibilities:Manage Windows Server environments and support Active Directory, Group Policy, and MECM operations.Install and configure operating systems and software updates following Security Technical Implementation Guides (STIGs).Perform system patching, PowerShell scripting, and release management activities.Monitor system performance and troubleshoot issues to ensure high availability of network resources.Schedule and maintain system backups, ensuring data/media recoverability and integrity.Conduct routine audits for compliance with DoD security standards.Document system configurations and maintain a comprehensive hardware/software library.Collaborate with IT and Cybersecurity teams to support remediation, patching, and vulnerability scanning efforts.Work with customers to develop new value-added programs and data solutions with existing structures and new requirements.Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee for this job.