IT Infrastructure Administrator Jobs in Arlington, VA

Shape the future of national security by managing and securing Linux infrastructure. Collaborate with cybersecurity professionals to enhance system integrity, perform vulnerability assessments, and en...

Join our team as a Linux System Administrator, securing and maintaining critical systems. Collaborate with cybersecurity professionals to implement robust configurations and ensure operational resilie...

Shape the future of cybersecurity by securing and enhancing FEMA's Linux-based infrastructure. Collaborate with experts to ensure system integrity and availability, proactively monitoring performance...

Optimize data-driven decision-making by analyzing user experience metrics, building KPI dashboards, and delivering actionable insights to leadership, ensuring effective outreach and high performance i...

Join a team that shapes the future of large-scale Linux systems administration. Oversee installations, monitor operations, and enhance system performance while maintaining security integrity in a dyna...

Advance your career by managing Unix/Linux environments, ensuring system resilience and security. Collaborate with teams to optimize multi-environment systems while safeguarding against modern vulnera...

Join a team that's dedicated to optimizing IT systems in a mission-critical environment, ensuring the reliability and security of operations across Windows, Linux, and UNIX. You'll manage infrastructu...

Join a team that's focused on maintaining and enhancing hybrid infrastructure. You'll manage Windows Server and cloud environments, automate processes, and ensure systems are reliable and efficient, d...

Join a team that manages and supports enterprise telephony systems, providing technical leadership in configuring, maintaining, and troubleshooting infrastructure, while ensuring high availability and...

Execute systems administration for enterprise telephony infrastructure, ensuring maintenance, troubleshooting, and security compliance across Windows and Linux environments while collaborating with cr...

Transform complex security systems while ensuring optimal performance. As a key player, you'll manage implementations, troubleshoot issues, and collaborate with a dynamic team to enhance organizationa...

Unlock potential by leveraging your expertise in Windows infrastructure management, enhancing performance and security in complex environments, supporting critical operations, and driving automation t...

Champion the administration of Deltek Costpoint, ensuring compliance and accuracy in government contract accounting while effectively supporting cross-functional teams with best practices and training...

Champion the management and support of diverse web server environments, ensuring high performance and security. Leverage expertise in Linux systems, Apache HTTPD, Tomcat, and NGINX to resolve complex...

Join our team to support large-scale Linux systems through installation, monitoring, and problem resolution. Leverage your expertise in scripting and system administration to enhance security and perf...

Unlock potential by leveraging your 15+ years of Linux systems administration expertise to enhance large-scale operations, ensure security integrity, and optimize performance with innovative scripting...

Provide top-tier IT support and system maintenance as a Junior Systems Administrator, working in a highly collaborative environment. Engage in troubleshooting, account management, and user training to...

Manage the day-to-day administration of Cisco UCS and VMware environments, ensuring optimal performance and compliance. Drive disaster recovery testing, monitoring, and security hardening while provid...

Engage as an Engineering Systems Administrator overseeing system installation, performance, and security compliance, while collaborating on innovative tech solutions for enterprise operations and achi...

Elevate system performance by architecting and managing complex infrastructures, leading cloud integrations while ensuring adherence to federal security compliance and optimizing operations for high a...

Analyze mainframe networking systems to ensure optimal performance, security, and compliance. Collaborate with cross-functional teams to troubleshoot issues, lead projects, and mentor junior staff. Dr...

Join a team that's responsible for enhancing server operations, monitoring systems, and optimizing IT services. Leverage your skills to support users and ensure high quality network transmission in a...

Elevate system performance by managing server operations, configuring software, and optimizing network resource utilization to support seamless IT functionality and user assistance...

Shape the future of data governance by championing Tableau Server administration, optimizing server performance, managing user access, and delivering technical support to enhance data visualization st...

Unlock potential by leading the Technical Engagement Network Lab, managing advanced cybersecurity capabilities, ensuring seamless operations, and delivering robust support to government agencies facin...