UNIX System Administrator Jobs in Fairfax, VA

Empower system performance by providing crucial administration support for large-scale Linux infrastructure, ensuring operational excellence through monitoring, problem resolution, and security adhere...

Support critical satellite operations by maintaining systems and resolving issues. Collaborate with technical leads to implement IT solutions, automate monitoring, and ensure service continuity for vi...

Optimize research outcomes by managing Linux systems and data analysis. Support scientific programs through troubleshooting, high-performance computing, and collaborative experiments while ensuring ef...

Optimize the management of critical IT infrastructure, focusing on Windows Active Directory, virtual machines, and cloud instances. Collaborate with teams to enhance security measures and ensure compl...

Elevate your career as a Windows Systems Administrator, managing and securing a dynamic Windows server and virtual infrastructure. Leverage your advanced skills in automation, PowerShell scripting, an...

Join our team to provide vital system administration and engineering support, ensuring operational security and performance across various networks. Collaborate efficiently while managing technical ch...

Shape the future of IT by ensuring system stability, security, and performance. This role involves managing servers, networks, and critical systems while collaborating with teams to implement innovati...

Empower our team by leveraging your expertise in system administration to ensure robust IT infrastructure stability, security, and performance. Collaborate effectively to tackle technical challenges a...

Join a team that's committed to enhancing IT infrastructure stability and security. Leverage your technical skills to manage systems, networks, and performance, while collaborating on innovative techn...

Join a team that ensures secure, compliant IT operations for mission-critical services. As a System Administrator, you'll manage server environments, support cybersecurity protocols, and collaborate w...

Lead daily operations and maintenance for IT systems, enhancing HPC capabilities while providing top-tier technical support across multiple sites and locations, ensuring optimal performance and user s...

Join a dynamic team as you manage Linux infrastructure and DevOps operations. Leverage your expertise in virtualization, automation, and security to drive innovative solutions on a new contract while...

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

Transform cutting-edge technologies as an expert Systems Administrator, leading z/OS installation, maintenance, and support for a critical Government client while ensuring optimal system performance a...

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

Take ownership of the administration and support of global physical security systems, including CCTV, access control, and related infrastructure. Collaborate with cross-functional teams to ensure syst...

Accelerate your career by providing technical support for complex systems, troubleshooting issues on Windows 11, and collaborating on IT solutions that enhance user experience and system security for...

Elevate your career by ensuring seamless operations of multi-user computer systems. Collaborate with teams to maintain performance, enhance security, and provide top-tier support in a dynamic hybrid L...

Optimize enterprise systems as a Senior Systems Administrator, focusing on virtualization and hyper-converged infrastructure. Collaborate with cross-functional teams while managing Windows servers, Nu...

Empower your career by sustaining and enhancing a vital Windows infrastructure. Collaborate with cross-functional teams to resolve complex system issues, enhance security, and optimize operations whil...

Join a team that advances enterprise Linux administration in a federal financial systems environment, ensuring optimal performance, security, and reliability while leading cloud migration initiatives...

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...

Empower enterprise networks by providing expert administration in a dynamic hybrid cloud environment. Enhance infrastructure performance and security while ensuring reliable support and documentation...

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...

Drive Unix Systems Administration to optimize and support DISA’s Hybrid Cloud environments, ensuring seamless operations across various Unix platforms and cloud-based systems while adhering to securit...