Windows System Administrator (Senior-Level)

Link Solutions, Inc.•Adelphi, MD

8d•$120,000 - $140,000•Onsite

About The Position

Link Solutions, Inc. is seeking a senior-level Windows System Administrator to support mission-critical information systems at the Army Research Laboratory (ARL) in Adelphi, Maryland. This non-remote role involves administering, securing, maintaining, and optimizing Windows-based infrastructure in a globally distributed enterprise environment. The administrator will work with IT, Cybersecurity, and operational teams to maintain system availability, performance, and security in support of research and national defense initiatives. The position includes work with Microsoft technologies, enterprise-scale infrastructure, cybersecurity frameworks, and Department of Defense systems. U.S. citizenship, an active Top Secret clearance, and an IAT Level II certification or higher are required. Relocation assistance is available. The role provides technical leadership and Tier III escalation support, contributes to infrastructure modernization and technology refresh projects, and works with government stakeholders to identify requirements and improve IT services. Compensation is $120,000–$140,000 per year, with final compensation influenced by experience, technical expertise, certifications, and education.

Requirements

U.S. citizenship.
Active Top Secret clearance.
IAT Level II certification or higher in accordance with DoD 8570/8140 requirements; examples include Security+ CE, SSCP, GSEC, CCNA Security, or equivalent.
Bachelor's degree and seven years of relevant experience, or ten years of relevant experience in lieu of a degree.
Extensive experience administering Windows Server environments in enterprise settings.
Experience supporting Active Directory, Group Policy, DNS, DHCP, and enterprise Windows infrastructure.
Experience implementing and maintaining STIG compliance and security hardening standards.
Experience performing system patching, vulnerability remediation, and configuration management.
Experience using PowerShell for automation and administration.
Knowledge of DoD cybersecurity policies and RMF.
Strong troubleshooting and problem-solving skills.
Ability to communicate effectively with technical and non-technical stakeholders.

Nice To Haves

Experience with Nutanix administration and virtualization platforms.
Experience configuring and administering IIS (Internet Information Services).
Experience retrieving, applying, and validating STIGs.
Experience using STIG Viewer, SCAP Compliance Checker, and EvaluateSTIG.
Experience implementing and supporting Windows Server solutions through deployment and sustainment phases.
Experience installing, configuring, and supporting COTS/GOTS applications.
Experience supporting Linux-to-Windows migration projects.
Working knowledge of Linux administration and command-line operations.
Experience troubleshooting custom-developed applications.
Experience with MECM/SCCM administration.

Responsibilities

Administer, maintain, and optimize Windows Server operating systems in enterprise and classified environments.
Manage and support Microsoft Active Directory, Group Policy Objects (GPOs), DNS, DHCP, and enterprise authentication services.
Administer Microsoft Endpoint Configuration Manager (MECM/SCCM) and endpoint management solutions.
Install, configure, maintain, and secure Windows operating systems, server platforms, and enterprise applications.
Develop and maintain PowerShell scripts to automate system administration tasks and improve operational efficiency.
Perform patch management, system updates, and software deployments in accordance with DoD and cybersecurity requirements.
Implement and maintain Security Technical Implementation Guides (STIGs) and security hardening standards.
Monitor system performance, analyze trends, and troubleshoot hardware, software, and operating system issues.
Plan, implement, and test backup and recovery procedures to ensure system resiliency and data integrity.
Conduct routine security audits, vulnerability remediation, and compliance assessments.
Collaborate with Cybersecurity teams on vulnerability scanning, risk mitigation, and accreditation efforts.
Support incident response activities and troubleshoot complex system and network issues.
Maintain technical documentation, system configurations, standard operating procedures, and architecture diagrams.
Participate in infrastructure modernization initiatives and technology refresh projects.
Work with government stakeholders to identify requirements, improve services, and implement IT solutions.
Provide Tier III escalation support and technical leadership for systems administration activities.