ClearanceJobs
Senior Linux Administrator
The Senior Linux Administrator is responsible for designing, implementing, and maintaining secure, scalable Linux-based systems within enterprise environments. This role plays a critical part in the optimization, automation, and cybersecurity compliance of mission-critical infrastructure. The administrator ensures operational stability, supports incident response, and leads system modernization and automation efforts. Job Responsibilities: Manage Red Hat Enterprise Linux (RHEL) systems, including configuration, patching, and tuning. Implement and maintain automation using Ansible, Bash, and Python for configuration and deployment. Perform system hardening, vulnerability remediation, and compliance audits in alignment with DoD STIGs and NIST 800-53. Test, configure and implement policy for sssd, firewalld, chrony, fapolicyd, selinux, grub, 3rd party software and others. Troubleshoot complex system issues, conduct root cause analysis, and support high-severity incident response. Maintain detailed system documentation, SOPs, and recovery procedures. Support backup, disaster recovery, and continuity of operations planning (COOP). Collaborate with cybersecurity, networking, and application teams to ensure system integrity and availability Education: Bachelor's degree in computer science, information systems, or a related technical field. Experience: Proficiency with RHEL, Satellite, Ansible, Git, and shell scripting. Familiarity with windows ecosystem (AD, kerberos, SCOM) Working knowledge of cloud platforms (AWS, Azure) and virtualization technologies Strong analytical, documentation, and communication skills Certifications: DoD 8570 IAT Level II certification (e.g., Security+ CE) required. Active Secret clearance (TS/SCI eligibility preferred). RHCSA or RHCE certification preferred Why Join Us: Contribute to impactful government initiatives that enhance national security and public welfare. Work in a collaborative, flexible, and forward-thinking work environment. Receive competitive compensation, comprehensive benefits, and career development opportunities. Join us and make a difference!
The Senior Linux Administrator is responsible for designing, implementing, and maintaining secure, scalable Linux-based systems within enterprise environments. This role plays a critical part in the optimization, automation, and cybersecurity compliance of mission-critical infrastructure. The administrator ensures operational stability, supports incident response, and leads system modernization and automation efforts. Job Responsibilities: Manage Red Hat Enterprise Linux (RHEL) systems, including configuration, patching, and tuning. Implement and maintain automation using Ansible, Bash, and Python for configuration and deployment. Perform system hardening, vulnerability remediation, and compliance audits in alignment with DoD STIGs and NIST 800-53. Test, configure and implement policy for sssd, firewalld, chrony, fapolicyd, selinux, grub, 3rd party software and others. Troubleshoot complex system issues, conduct root cause analysis, and support high-severity incident response. Maintain detailed system documentation, SOPs, and recovery procedures. Support backup, disaster recovery, and continuity of operations planning (COOP). Collaborate with cybersecurity, networking, and application teams to ensure system integrity and availability Education: Bachelor's degree in computer science, information systems, or a related technical field. Experience: Proficiency with RHEL, Satellite, Ansible, Git, and shell scripting. Familiarity with windows ecosystem (AD, kerberos, SCOM) Working knowledge of cloud platforms (AWS, Azure) and virtualization technologies Strong analytical, documentation, and communication skills Certifications: DoD 8570 IAT Level II certification (e.g., Security+ CE) required. Active Secret clearance (TS/SCI eligibility preferred). RHCSA or RHCE certification preferred Why Join Us: Contribute to impactful government initiatives that enhance national security and public welfare. Work in a collaborative, flexible, and forward-thinking work environment. Receive competitive compensation, comprehensive benefits, and career development opportunities. Join us and make a difference!