Senior Windows Administrator Jobs in Arlington, VA

Join a dynamic engineering team to enhance Windows OS sensor solutions, tackling complex challenges, optimizing systems, and ensuring high-quality project delivery through collaboration and technical...

Elevate operations by managing complex Windows and Linux environments, leveraging DevOps principles to enhance automation and system efficiency, while providing critical support for mission-driven app...

Empower operations as a System Administrator for MODES III, managing AWS and on-prem cloud systems. Ensure system security, availability, and performance while collaborating with DevOps teams to suppo...

Help us innovate in secure infrastructure management by leveraging your expertise in cloud environments, storage, and virtualization. Collaborate on advanced networking solutions while ensuring robust...

Elevate server performance by designing, implementing, and maintaining secure, enterprise-level server infrastructure, leveraging virtualization, automation tools, and best practices for efficiency an...

Join our team to implement and manage enterprise network infrastructure, ensuring secure connectivity and optimal performance for a large-scale operation serving over 120,000 users across diverse loca...

Lead the charge in engineering resilient Windows server environments for mission-critical operations, ensuring secure patch management and lifecycle support across diverse network settings while colla...

Empower our payroll systems as a Workday Configuration Analyst, optimizing configurations while collaborating with cross-functional teams to enhance our Workday Payroll environment and improve employe...

Transform the Linux server landscape by managing installations, configurations, and optimizations. Drive automation and security compliance while supporting diverse projects in a collaborative environ...

Engage in designing and developing complex IT infrastructure solutions, ensuring effective performance and compliance while collaborating with teams to enhance cloud capabilities and best practices wi...

Collaborate to design and develop IT infrastructure solutions, coding and testing technology platforms. Monitor performance metrics and maintain operating procedures for seamless operations and improv...

Join a team that's dedicated to implementing and maintaining IT systems for federal contracts, providing vital support and ensuring high reliability of client/server, storage, and network devices whil...

Lead our IT Support Team by managing systems administrators, overseeing infrastructure compliance, and supporting 400+ users. Provide expert-level systems administration and deliver top-notch customer...

Advance network and system administration through expert support of Windows, Linux, and virtual infrastructures. Collaborate on day-to-day operations, security, and automation to ensure optimal perfor...

Transform Air Force Intelligence Operations by designing Linux-based systems. Play a key role in creating innovative solutions that meld advanced technology with real-time mission requirements. Collab...

Champion innovative cybersecurity solutions by designing and managing seamless Linux systems integration, ensuring operational excellence and incident response readiness in support of critical governm...

Empower your career by managing SharePoint infrastructures through upgrades, administration, and support. Collaborate across teams to enhance user experiences and ensure system integrity while maintai...

Provide Tier 3 application support and administration, enhancing workflow and reporting functionalities. Collaborate in a cross-functional team to ensure application stability and user satisfaction in...

Launch your career with a dynamic role managing IT infrastructure, supporting end-user technology, and enhancing system efficiency through innovative solutions and best practices in a collaborative en...

Join a team that's dedicated to ensuring the security and functionality of critical IT systems. This role encompasses system administration, user support, and operational sustainment for classified en...

Join a skilled infrastructure team as a Senior System Administrator, leveraging your Windows expertise to design, maintain, and optimize cutting-edge systems and networks in complex environments, whil...

Unlock your potential as you support critical communication systems in a dynamic 24/7 environment. Provide Tier 2 assistance and manage team operations while ensuring seamless IT performance across a...

Join a team that's shaping the future of IT operations by managing Windows and VMware systems in a secure environment. Collaborate on cutting-edge solutions to enhance efficiency and security within a...

Unlock the potential of mission-critical systems by optimizing cloud infrastructure, enhancing CI/CD pipelines, and ensuring security in a dynamic, collaborative setting focused on innovation and reli...

Drive high-performance computing services by managing complex IT systems, enhancing sustainment capabilities, and optimizing system operations, while providing tiered support to users and maintaining...