Senior Windows Administrator Jobs in Fort Belvoir, VA

Lead the transformation of enterprise systems architecture and security. Drive automation, optimize infrastructure, and implement zero-trust principles across complex environments while ensuring compl...

Lead the charge in enterprise systems architecture and infrastructure modernization. Drive automation, optimize security, and implement zero-trust principles across complex environments while ensuring...

Join a team that's dedicated to optimizing IT systems and enhancing performance across enterprise environments. You'll tackle advanced troubleshooting and system monitoring, ensuring reliable operatio...

Engineer robust Linux systems, manage virtual environments, and enhance security compliance. Collaborate with teams to integrate technologies and deliver technical presentations, ensuring optimal perf...

Join a team that's dedicated to enhancing enterprise infrastructure for national defense missions. As a Linux System Administrator, you'll manage systems, optimize operations, and support IT infrastru...

Join a team that's dedicated to enhancing system integrity and security. Leverage your expertise in Linux administration and automation to support multi-platform environments and drive innovative solu...

Analyze and maintain Linux-based high-performance computing systems, ensuring optimal performance and reliability for mission-critical operations in a national security context. Collaborate with teams...

Optimize mission operations by supporting and maintaining Linux-based high-performance computing systems. Collaborate with teams to troubleshoot and enhance system performance on critical national sec...

Unlock your potential by managing IT infrastructure, automating processes, and ensuring system security. Collaborate with teams to optimize deployments and troubleshoot issues, all while staying curre...

Grow your career with a dynamic team seeking a System Administrator to manage IT infrastructure, automate processes, and ensure system security while collaborating with development teams to enhance de...

Lead server maintenance and support initiatives, ensuring optimal performance and reliability. Collaborate with teams to implement technical solutions and manage server configurations while maintainin...

Develop and maintain a robust Microsoft Windows infrastructure, ensuring operational readiness through advanced technology solutions and effective lifecycle management of systems and applications...

Join a team that's dedicated to maintaining cutting-edge Microsoft Windows infrastructure. Leverage your expertise to ensure operational readiness and enhance cybersecurity posture through innovative...

Champion national security by leading transformative IT infrastructure projects. Leverage your expertise to enhance enterprise architecture and drive modernization efforts, ensuring mission success fo...

Lead the charge in transforming enterprise IT capabilities for national security. Drive infrastructure modernization, ensure compliance, and mentor junior staff while delivering innovative solutions t...

Drive the operational health of mission-critical Appian environments, ensuring reliability and performance. Collaborate with cross-functional teams to manage configurations, deployments, and incident...

Join a team that's driving innovation as a senior Windows System Administrator, providing critical support in a fast-paced Agile environment. You'll manage systems across a broad footprint, ensuring o...

Transform your career by joining a dynamic Agile team as a senior Windows System Administrator, providing critical systems support and enhancing operational capabilities across diverse environments in...

Transform complex hardware into reliable services by leveraging your extensive Linux and infrastructure expertise. Collaborate with a dynamic team to support advanced computing and data analytics for...

Transform IT operations by managing infrastructure, providing support, and enhancing system reliability. Engage in troubleshooting, problem resolution, and improving system performance for effective d...

Join a team that's dedicated to optimizing network security through expert management of PaloAlto firewall infrastructure. You'll ensure performance, security, and availability while providing critica...

Champion the maintenance and security of medium-sized secure networks, ensuring compliance with DoW regulations while collaborating with a dedicated team to support client needs and enhance system per...

Manage and enhance Microsoft Windows environments, ensuring seamless operations and robust security. Collaborate with teams to optimize and troubleshoot systems while supporting a wide range of admini...

Pioneer innovative solutions as you lead infrastructure projects, align strategies with business goals, and enhance system performance. Drive high-quality outcomes while managing cross-team programs a...

Join a dynamic team as a Senior Costpoint System Administrator, overseeing Deltek Costpoint ERP management, ensuring system security, compliance, and seamless integrations while supporting finance and...