IT Infrastructure Administrator Jobs in Arlington, VA

Join a team that's critical to maintaining system reliability and security, optimizing enterprise application servers, and ensuring compliance with cybersecurity directives for a mission-driven progra...

Champion operational excellence by managing enterprise systems, ensuring compliance with cybersecurity standards, and supporting critical IT infrastructure for mission success across diverse environme...

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...

Take ownership of critical IT systems by providing top-tier technical support, diagnosing issues, and managing system infrastructure, ensuring optimal performance and reliability in a dynamic environm...

Lead the charge in maintaining robust enterprise network infrastructure by ensuring reliability, security, and performance. Collaborate across teams, diagnose issues, and support IT operations in a hy...

Join the team to deliver robust Linux administration and automation solutions. Enhance enterprise environments through CI/CD pipeline development, optimize system performance, and ensure operational s...

Join a team that supports critical cyber operations and enterprise IT for the Army National Guard. Leverage your skills to maintain system performance, ensure compliance, and contribute to mission rea...

Join a team that's transforming technology into opportunity by maintaining and operating complex IT systems. Provide critical support for UNIX/Windows servers, addressing technical challenges while en...

Support critical cybersecurity operations by executing Risk Management Framework activities, ensuring compliance for information systems across classified and unclassified environments, and collaborat...

Contribute to network performance by managing Cisco Meraki devices and Windows servers. Troubleshoot complex issues, ensure security compliance, and optimize infrastructure. Engage with IT staff to su...

Transform enterprise BI platforms through optimization, security, and cloud integration. This role demands operational excellence in MicroStrategy administration, ensuring high-performance systems and...

Take ownership of DLA's Okta environments, ensuring stable operation through planning, development, and optimization. Engage in end user support, conduct training, and guide on technology direction to...

Champion IT operations by leading infrastructure services, ensuring efficient environments, and driving innovative solutions to deliver exceptional client support in a 24/7 operations setting...

Join a dynamic team to enhance education and training applications through Life Cycle Sustainment activities, maintaining and optimizing hybrid Windows/Linux systems while embracing cloud technology a...

Develop and maintain critical systems for a dynamic IT service desk, optimizing network performance and providing expert troubleshooting support for end users in a multi-user environment. Engage with...

Drive enterprise system administration solutions, collaborating across teams to tackle complex issues, optimize performance, and deliver clear documentation for enhancements and installations that ali...

Engage in maintaining and configuring computer systems, providing TIER 1/2/3 support for Linux/Windows environments, and ensuring reliable operations of IT systems while coordinating with users and op...

Grow your career with us! As an IT Systems Administrator, you'll manage end-user technology, SaaS platforms, and core IT systems to ensure security and efficiency. Collaborate with teams to enhance pr...

Engineer, implement, and maintain critical IT systems while providing support, troubleshooting, and managing day-to-day operations to optimize performance and reliability in a complex technical enviro...

Engage in the support, management, and optimization of IT systems, ensuring operational efficiency and problem resolution. Collaborate with teams to enhance system infrastructures and maintain seamles...

Join our team to engineer and support innovative solutions in a Windows environment, enhance system deployment, and improve network operations while collaborating with various teams to ensure seamless...

Champion secure infrastructure in mission-critical environments through hands-on management and support of Linux and Windows systems, ensuring seamless operations and compliance for vital intelligence...

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...

Empower our team by providing expert support for IT systems implementation, troubleshooting, and maintenance. Establish and maintain user accounts while ensuring compliance with customer policies for...

Lead day-to-day IT administration, enhancing infrastructure and cybersecurity initiatives while collaborating with engineering teams to streamline operations and drive technical solutions for organiza...