Senior Windows Administrator Jobs in Reston, VA

Unlock potential by providing operational support and maintenance for secure Windows and Linux systems, ensuring compliance and high availability across hybrid IT environments in a dynamic, mission-or...

Partner with us to provide advanced Tier II support for desktop and endpoint systems, deploying and troubleshooting across various platforms while collaborating with cybersecurity and engineering team...

Optimize server administration through expert management of Windows environments, ensuring security compliance and operational excellence. Collaborate with teams to deploy applications and drive syste...

Oversee critical IT systems to ensure operational efficiency and security. Collaborate with teams to troubleshoot, manage infrastructure, and provide tiered support for technology resources that bolst...

Help us ensure security compliance and maintain ATO Status while supporting IT systems operations, troubleshooting, and optimizing performance across virtualization environments for multiple projects...

Take ownership of advanced IT infrastructure by leading systems administration, ensuring performance and security. Provide technical guidance to teams, resolve complex issues, and collaborate on strat...

Unlock potential by leading the planning and implementation of Azure Virtual Desktop environments while ensuring optimal user experiences and security measures across the organization. Collaborate and...

Join an innovative team to design, implement, and manage Azure Virtual Desktop environments, ensuring security and performance while enhancing user experiences through strategic planning and expert ex...

Transform mission-critical systems through expert administration of Windows and Linux environments. Contribute to high-impact government programs by ensuring optimization, security, and reliability ac...

Manage and optimize IT systems, providing hands-on support, troubleshooting, and performance monitoring across both Windows and UNIX environments. Engage in AWS cloud solutions and contribute to DevOp...

Provide hands-on support for IT systems, optimize infrastructure, troubleshoot issues, and ensure performance and security across enterprise environments while collaborating on cloud solutions and Dev...

Join a team that's focused on optimizing IT systems, providing advanced troubleshooting, and ensuring reliable performance across diverse technologies in mission-critical enterprise environments...

Optimize IT system performance by providing advanced troubleshooting and maintenance support across diverse technologies in mission-critical environments, ensuring reliable operations and effective us...

Unlock your potential in a dynamic role supporting mission-critical IT systems by managing Linux-based environments, troubleshooting complex issues, and ensuring optimal performance through collaborat...

Lead the charge in managing IT systems, providing top-tier support and troubleshooting for client/server, storage, and network devices, ensuring optimal performance and reliability for critical operat...

Unlock potential by managing and optimizing enterprise databases, ensuring system reliability and performance while collaborating in an Agile environment to meet customer needs...

Join a team that's driving production operations within a secure Windows Server and AWS GovCloud environment. You will lead incident responses, automate infrastructure as code, and mentor engineers in...

Optimize IT operations by managing internal systems, supporting growth, and driving CMMC compliance while collaborating with external partners to enhance infrastructure and security across the organiz...

Elevate the stability and security of critical systems supporting the DoD by expertly managing network software and database environments, resolving connectivity issues, and ensuring optimal operation...

Pioneer innovative monitoring solutions to enhance mission-critical systems' performance, reliability, and security in a classified environment, leveraging extensive experience with SolarWinds technol...

Elevate your career as you drive Workday security strategy, ensuring robust data integrity and compliance while enhancing operational efficiency. Collaborate across projects to implement security meas...

Grow your career with a team that ensures the reliability, security, and availability of enterprise IT systems across multiple global environments, providing essential support and operational continui...

Elevate network infrastructure management by overseeing lab operations, optimizing resource allocation, and ensuring performance across R&D and PoC environments while implementing best practices to pr...

Engineer robust enterprise infrastructure solutions, ensuring optimal system performance and capacity. Collaborate with teams to develop network designs, enhance system capabilities, and address compl...

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...