Senior Linux Engineer

Senior Linux EngineerWe are seeking a Senior Linux Engineer to administer, harden, and optimize Linux server infrastructure in a federal IT environment. This role ensures the reliability, security, and performance of Red Hat Enterprise Linux systems supporting critical agency operations, with responsibility for system configuration, patching, automation, and STIG compliance.Key ResponsibilitiesAdminister Red Hat Enterprise Linux (RHEL) and CentOS server environments including installation, configuration, patching, and lifecycle managementApply and maintain DISA STIG and CIS Benchmark hardening configurations; remediate findings from vulnerability scans (Tenable/Nessus)Develop and maintain automation scripts using Bash, Python, and Ansible for routine administration, patch deployment, and configuration drift detectionManage identity and access controls: PAM, SELinux, sudo configurations, LDAP/Active Directory integrationMonitor system health, capacity, and performance using tools such as Nagios, Zabbix, or native OS utilities; respond to and resolve incidents within SLASupport storage management (LVM, NFS, iSCSI) and backup/recovery operations for Linux workloadsCollaborate with security, database, and application teams to ensure Linux platform integrity across the environmentRequired QualificationsBachelor's degree in Information Technology, Computer Science, or related field (or equivalent experience)6+ years of Linux system administration experience, primarily on RHEL in a federal or regulated environmentStrong proficiency in Bash scripting; experience with Python and Ansible for automationDemonstrated experience applying DISA STIGs and resolving Tenable/Nessus scan findingsProficiency with SELinux, PAM, and Linux security hardening practicesFamiliarity with NIST 800-53 controls as applied to operating system configurationClearance: Must be eligible to obtain and maintain a federal Public Trust background investigation (MBI or HBI). U.S. citizenship or permanent residency required.Preferred QualificationsRed Hat Certified Engineer (RHCE) or Red Hat Certified System Administrator (RHCSA)Experience with Red Hat Satellite for patch and configuration management at scaleExposure to Linux workloads in AWS GovCloud or Azure GovernmentAvyanna LLC offers a competitive salary and comprehensive benefits package including health, dental, vision, 401(k), paid time off, and professional development support.Avyanna LLC is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or veteran status.