Senior Windows Administrator Jobs in Reston, VA

Grow your career with a pivotal role managing hybrid cloud and client/server systems. Ensure performance, security, and reliability while supporting users and driving continuous improvement through co...

Advance your career by ensuring optimal performance of training systems for effective delivery. This role involves maintaining training environments, managing user access, and ensuring security compli...

Develop leading enterprise architectures for the War Data Platform, ensuring secure and scalable solutions across multiple classification environments. Drive technology selection and governance to sup...

Drive enterprise architecture excellence by translating complex mission requirements into scalable, secure, and interoperable system designs across multiple security environments. Collaborate with sta...

Optimize customer success by operationalizing the Tanium platform, solving complex issues, and enhancing security and compliance through effective technical collaboration and communication in enterpri...

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...

Engage in critical systems engineering efforts, leveraging over a decade of expertise to guide complex projects and collaborate with diverse stakeholders, ensuring successful execution and delivery of...

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...

Play a key role in establishing robust configuration management processes for enterprise applications. Ensure compliance with configuration control procedures, manage baselines, and oversee changes, s...

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...

Lead the charge in optimizing Agile processes for a global DevSecOps program, ensuring efficient collaboration across regions while managing delivery blockers and fostering a positive team environment...

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...

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...

Lead a dedicated team focused on enhancing IT service delivery through strategic management of SharePoint Knowledge Management, ensuring compliance and accessibility of critical documents for authoriz...

Join a team that leads enterprise-scale Azure architecture and technical strategy, driving modernization initiatives and fostering collaboration across disciplines to ensure business transformation an...

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...

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...

Shape the future of High Performance Computing by managing diverse systems, optimizing performance, and resolving complex issues. Collaborate with IT teams to enhance services and support mission-crit...

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...