Linux Server Administrator

ManTech International seeks a Linux Server Administrator to support mission-critical systems for U.S. defense, intelligence, and federal agencies. You will install, configure, secure, and maintain Linux servers; monitor performance; troubleshoot complex issues; and implement patches and automation using Bash or Python. Role includes managing users and access controls, supporting virtualization, backup and recovery, and documenting changes. Collaborate with cyber and engineering teams in a mission-focused, high-integrity environment with strong training, certification support, and career growth opportunities.