Senior Windows Administrator Jobs in Fairfax, VA

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...

Champion the secure and scalable automation of platform services, enhancing performance across on-prem and cloud systems. Collaborate closely with engineering teams to streamline CI/CD processes and e...

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...

Innovate cloud-centric DevOps practices, enhancing CI/CD workflows and orchestration. Collaborate in a dynamic Agile environment to ensure optimal system reliability and automation across critical pro...

Champion the delivery of innovative Linux solutions by configuring virtual environments, optimizing storage systems, and enhancing technical documentation while collaborating with leadership for impac...

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...

Join a team that's dedicated to building a resilient DevOps support organization, leading a diverse group of engineers, and enhancing operational standards for platform reliability across global engin...

Transform complex enterprise transactions by collaborating with cross-functional teams to optimize deal structures and drive efficiency from quote to close while ensuring compliance and quality standa...

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...

Drive operational efficiency by streamlining workflows and automating systems. Contribute to a centralized team optimizing enterprise applications to enhance productivity and reduce operational overhe...

Deliver innovative solutions by engineering high-performance software systems to enhance security capabilities, collaborating across teams to mitigate risks and improve infrastructure effectiveness in...

Advance your career by leading the administration and optimization of dynamic Windows and Linux server environments while ensuring scalability, security, and performance in a collaborative infrastruct...

Champion DevSecOps transformation by designing, implementing, and maintaining enterprise solutions that integrate security throughout the software development lifecycle, ensuring compliance and qualit...

Transform global enterprise networks by designing and developing innovative tools and systems. Collaborate with cross-functional teams to enhance user experience and ensure high-quality software solut...

Execute the daily configuration and operations of systems, encompassing comprehensive management in clinical technology to enhance performance and support users effectively in a fast-paced environment...

Unlock the potential of advanced cybersecurity solutions, leading Extrahop deployments while mentoring junior consultants. Collaborate with clients to optimize strategies and respond to complex securi...

Explore innovative API security methods to enhance operational readiness across multiple classified environments, ensuring effective collaboration and integrity in the U.S. Department of War's groundb...

Discover how to drive subscription growth through financial strategy, analyzing performance metrics to inform key business decisions. Collaborate closely with finance and growth teams to enhance reven...

Elevate API security within critical defense initiatives. Validate controls for AI and ML APIs, ensuring operational readiness. Collaborate with diverse teams to enhance mission assurance and maintain...