Windows System Administrator Jobs in Reston, VA

Elevate your career by providing critical 24x7 support for Identity, Credential, and Access Management systems. Collaborate across teams to solve complex access issues while ensuring high customer sat...

Join a team that's dedicated to providing 24x7 support for Identity, Credential, and Access Management systems, ensuring seamless operations and customer satisfaction through Tier 1 & Tier 2 support a...

Join a team that's redefining data center design, focusing on innovation, resilience, and efficiency in mission-critical facilities, directly impacting global projects and ensuring world-class perform...

Reimagine system administration by leading the maintenance, upgrades, and configuration of cutting-edge SIGINT systems, ensuring optimal integration and performance in diverse operational environments...

Inspire project success as you lead a diverse team, ensuring seamless delivery, effective communication, and high-quality outcomes in a challenging IT environment. Your expertise will drive modernizat...

Unlock potential by leveraging your 15+ years of Linux systems administration expertise to enhance large-scale operations, ensure security integrity, and optimize performance with innovative scripting...

Join a team that engineers and implements robust cybersecurity solutions in cloud and on-prem environments, supporting enterprise-wide security goals and enabling cutting-edge infrastructure managemen...

Contribute to full-stack software solutions supporting mission-critical systems. Engage with diverse teams to optimize performance and enhance complex software in a high-stakes, fast-paced environment...

Join a dynamic team of Software Engineers specializing in full-stack solutions for mission-critical systems, focusing on software development, algorithm design, and system optimization across diverse...

Join a team that's driving customer transformation through AI adoption and operational change. You'll consult at C-level, guide teams through disruption, and ensure technology delivers tangible busine...

Lead the development of innovative autonomous airpower systems through advanced Systems Engineering, ensuring effective integration, testing, and compliance with rigorous military standards while coll...

Empower success as you drive program execution, manage contract deliverables, and lead cross-functional teams while ensuring compliance and fostering strong relationships with stakeholders to achieve...

Join a team that's dedicated to developing and enhancing critical software systems. Collaborate cross-functionally to ensure high availability and performance of Java and C/C++ services in global dist...

Empower your technical expertise by supporting component-based service development across multiple applications. Contribute to innovative mission solutions while collaborating with dynamic teams in a...

Join a team that's driving innovation in cyber resilience! As a Pre-Sales Systems Engineer, you'll tailor technical solutions to exceed client expectations and collaborate with sales to deliver impact...

Champion innovative cloud solutions by developing and testing microservices in a dynamic environment, overseeing all software lifecycle phases from design to deployment while ensuring system performan...

Lead the design and delivery of enterprise-grade Microsoft Power Platform solutions. Drive architecture, enhance compliance, and optimize performance through innovative technical leadership and robust...

Unlock your potential by leveraging advanced DevOps tools and cloud technologies to create and maintain efficient environments for production support and pilot programs in secure settings. Collaborate...

Join us to enhance our enterprise EHR integration ecosystem by architecting robust, secure, and scalable network infrastructures while implementing observability solutions to ensure performance and co...

Shape the future of security systems as you collaborate with diverse teams to design innovative solutions. Manage projects from conception to execution, ensuring top-quality outcomes and engagement wi...

Join a team that's shaping innovative Electronic Security Systems solutions. Collaborate with architects and engineers to deliver high-quality security projects from design through execution. Drive cl...

Unlock your potential as a Mid-Level Security Engineer, providing essential support for network and cybersecurity within a DoD environment, ensuring the integrity of mission-critical systems through h...

Take ownership of network security by deploying and managing Palo Alto technologies in a DoD environment, ensuring secure operations and optimal performance of mission-critical systems with hands-on e...

Join a team that's focused on delivering cutting-edge cloud solutions while overseeing complex acquisitions and ensuring technical alignment across diverse stakeholders in a dynamic government environ...

Contribute to the development and maintenance of secure hybrid cloud environments, assisting in cloud automation and ensuring consistent deployment practices while collaborating with cross-functional...