IT Infrastructure Administrator Jobs in Arlington, VA

Join a dynamic team driving IT system support for mission-critical enterprise applications. Develop and maintain infrastructure, ensuring security and reliability while enhancing operational efficienc...

Lead the charge in managing and optimizing Red Hat Linux systems, ensuring peak performance and reliability. Collaborate with teams to support operations and troubleshoot issues in a dynamic IT enviro...

Manage and maintain critical IT infrastructures for defense operations, ensuring security compliance and optimal performance across diverse systems in a classified environment. Collaborate with teams...

Help us maintain operational excellence in a high-profile DOD environment. As an Intermediate NOSC Technician, you will monitor, troubleshoot, and ensure secure IT services for mission-critical operat...

Oversee advanced technical support and systems administration for escalated incidents, ensuring optimal performance and security in a complex enterprise environment, while collaborating across teams a...

Optimize enterprise infrastructure projects by executing designs, conducting tests, and ensuring handoffs. Collaborate closely with architects and project managers while demonstrating strong communica...

Shape the future of IT support by delivering vital systems administration for mobile devices, facilitating communication and collaboration for first responders both domestically and overseas, and ensu...

Grow your career with a leading role in Windows systems administration, providing critical support for enterprise Microsoft environments. Engage in advanced troubleshooting, security hardening, and ma...

Transform IT operations by managing systems administration, help desk support, and DevOps for a robust technological environment. Drive system optimization and ensure secure, efficient service deliver...

Join a team that's managing intricate utility-scale fiber infrastructure projects. This role requires leading cross-functional teams and driving project execution through both agile and waterfall meth...

Champion technical excellence by providing Tier II support for VMware virtualization, ensuring optimal performance and stability of enterprise infrastructure while collaborating on incident resolution...

Provide expert Tier II virtualization support, ensuring the stability and performance of the VMware infrastructure. Troubleshoot complex issues, perform maintenance, and guide Tier I staff while manag...

Join a team that's dedicated to enhancing enterprise virtualization through advanced VMware support. You'll tackle complex issues, ensure system stability, and maintain high availability across our vi...

Join us to provide Tier II technical support for enterprise virtualization, focusing on VMware technologies. You will troubleshoot advanced incidents, ensure system stability, and collaborate with tea...

Drive O&M support for NIPRNET, SIPRNET, and JWICS, collaborating to optimize user experience and system integrity for approximately 550 users. Manage virtual infrastructures and ensure compliance with...

Engage in the administration of SharePoint environments, ensuring secure access, effective collaboration services, and alignment with compliance standards. Drive the enhancement of tools and processes...

Elevate your career by providing critical Linux systems administration and support, ensuring operational excellence in mission-critical environments. Collaborate with a dynamic team while managing eff...

Lead the charge in maintaining secure, mission-critical IT systems by providing expert administration and troubleshooting for both Linux and Windows environments, ensuring optimal performance and comp...

Optimize platform deployments and customer support by effectively managing the Istari platform across diverse environments. Collaborate cross-functionally to ensure seamless infrastructure operations...

Grow your expertise by tackling complex infrastructure solutions, optimizing performance, and driving automation initiatives within a hybrid-cloud environment while leading cross-functional teams and...

Contribute to systems administration by managing daily operations, ensuring compliance and optimizing performance across Linux systems, cloud services, and automation tools, while leveraging extensive...

Grow your career with a pivotal role managing complex IT network & infrastructure systems, ensuring optimal performance across multiple campuses and leading a skilled team to enhance technological cap...

Empower operational excellence as a hands-on administrator for fleet management systems, providing primary support, configuration, and data integrity while collaborating closely with users and IT team...

Unlock potential by leading the support and integration of a COTS access system. Collaborate with cross-functional teams to ensure operational readiness while maintaining exceptional communication and...

Optimize mission success through innovative systems administration. Collaborate with teams to enhance IT operations and secure access solutions while ensuring reliable system performance and problem r...