Senior Windows Administrator Jobs in Arlington, VA

Transform mission-critical operations by leading AIOps initiatives and integrating advanced analytics to enhance IT service management and network security across secure environments...

Partner with us to drive cloud infrastructure demand and develop tailored solutions. Engage with clients, analyze needs, and present compelling proposals while collaborating with cross-functional team...

Design and develop scalable web applications leveraging .NET and SQL Server integrations to enhance business operations and client services, while mentoring junior engineers and driving continuous imp...

Contribute to the optimization and management of operating systems, ensuring efficiency and reliability across diverse platforms. Engage in problem resolution and system design while supporting users...

Support QA automation efforts by leading test strategy, execution, and collaboration with cross-functional teams. Ensure software quality through automated and manual testing while analyzing results f...

Develop solutions for IT infrastructure, focusing on Linux environments. Collaborate to design, test, and optimize systems, while ensuring compliance and performance metrics are met. Engage with cutti...

Lead the management and implementation of IT systems, focusing on security patches and user access. Collaborate within a small team to ensure operational excellence and data integrity, while supportin...

Join a team that's vital to supporting secure IT systems for Veterans. You'll oversee system operations, ensuring compliance and performance across various environments while collaborating with divers...

Execute high-impact virtualization strategies by designing, implementing, and optimizing VMware solutions across a large enterprise, ensuring robust performance and security for mission-critical opera...

Join a team that's committed to driving innovation and excellence in enterprise call center applications. You'll lead development and support initiatives, ensuring alignment with business goals while...

Empower the Intelligence Community by delivering critical systems administration across multiple networks. Collaborate with a diverse team to enhance IT services and ensure operational excellence, pro...

Optimize cloud engagement kits for rapid deployment and secure operations, providing essential support for the nation's cybersecurity efforts by ensuring mission-critical systems are available and rel...

Innovate and drive enterprise-level solutions in a dynamic cybersecurity team. Engage with complex systems and contribute to developing scalable architectures, ensuring robust documentation while ment...

Drive the management of complex systems across Windows, Linux, and Azure services, ensuring optimal performance and security while providing 7x24 on-call support in a collaborative team environment...

Elevate your career as a Senior IT Analyst, fostering client relationships, assessing satisfaction, and applying IT auditing frameworks to enhance operational effectiveness within a collaborative team...

Support our dynamic R&D team by maintaining and enhancing the ServiceNow platform, ensuring security compliance while balancing system administration and software development. Drive operational effici...

Accelerate your career by providing vital Infrastructure Server and Sustainment services to enhance High Performance Computing capabilities, ensuring optimal system performance and resolving complex I...

Unlock potential by optimizing financial processes for Marine Corps Installations Command. Collaborate with stakeholders to enhance data accuracy, reporting capabilities, and operational efficiency wh...

Shape enterprise IT infrastructure for the DOD by administering systems, enhancing security, and ensuring optimal network performance while collaborating in a dynamic team environment to achieve missi...

Innovate complex Windows endpoint management solutions and empower clients to integrate cutting-edge Microsoft technologies. Collaborate across teams to troubleshoot and enhance customer experiences...

Partner with us to enhance system reliability by administering Linux/Windows environments, performing updates, and providing technical support. Ensure secure configurations and manage system changes f...

Join a dynamic team to oversee identity and access management services, enhancing security and automating user access across platforms, ensuring compliance within a regulated banking environment...

Address key knowledge management needs by overseeing SharePoint governance, ensuring accurate document control, and enhancing executive visibility across strategic information for Army National Guard...

Deliver seamless system administration for Linux servers, ensuring robust security and compliance. This role involves configuring, monitoring, and upgrading network resources while supporting hardware...

Develop and implement innovative SharePoint applications and workflows, leveraging M365 Power Platform to enhance business processes, engage stakeholders, and deliver user-centric solutions that drive...