Windows/Linux Systems Administrator

ManTech International seeks a Windows/Linux Systems Administrator to support mission-critical government programs. In this role, you will install, configure, and maintain Windows and Linux servers, manage user access and security, and implement system hardening and patching in line with federal and DoD standards. You will monitor performance, troubleshoot complex issues, support virtualization and storage solutions, and document configurations. Working in a collaborative, mission-focused team, you'll contribute to national security while growing your skills through advanced tools, training, and clear career paths.