Senior Linux System Administrator at Leidos

The ESA V program is an IT Services program supporting several customers within the Department of Justice. The program provides a range of IT services including help desk deskside support Windows workstation engineering and maintenance managed print services ITSM Active Directory services and video conferencing as well as IT Infrastructure Operations and Engineering support.Leidos is hiring a Senior Linux System Administrator to provide on-site support in Fairfax VA at the customer enterprise data center. to users within the Department of Justice. This position requires a current active Secret clearance.Primary ResponsibilitiesThe successful candidate will work independently and as part of a team performing high-level systems analysis evaluation design integration documentation and implementation of complex Red Hat systems supporting applications that require a thorough knowledge of administrative and technical skills. Performs all duties of Red Hat administration including installation configuration securing performance tuning and troubleshooting. Applies higher-level business or technical principles and methods to very difficult technical problems to arrive at an engineering technical reports and related documentation and makes charts and graphs as needed to record results. Prepares and deliver presentations and briefings as required by the Task Order.Basic QualificationsBachelors Degree with 12 years experience as a Unix System Administrator Operational experience with RHEL8 and RHEL9. High school diploma with additional years experience may be considered in lieu of a degree.Must have Active Secret security clearanceMust have Active Secret security clearance 3 years deploying Unix in secured environments i.e. DISA3 years using updating and maintaining Red Hat SatelliteDocumenting system processes for Unix environmentsHW experience: Knowledge of Dell Servers iDRAC VMWare AWS and AzureSW experience: Operating Systems: RHEL8 and RHEL 9Red Hat Satellite Server and Red Hat PCS ClusteringExperience with running Red Hat systems with SELINUX in enforcing modeExperience with configuring PAM (Pluggable Authentication Modules) on RHEL to enable 2-factor authentication via RSA and/or Active DirectoryProficiency in developing and maintaining Ansible playbooks for system automationPreferred QualificationsVMWare AwareAzure AwareAWS AwareExperience with RHEL 10Experience with Ansible Automation PlatformExperience with the File Access Policy Daemon (fapolicyd) ServiceDISA environment hardening experienceDocker/ContainersServiceNow experienceComplex KornShell (ksh) or bash scriptingAbility to apply user requirements to the analysis planning and design of technology systems.Ability to communicate problems and solutions both verbally and in writing to the Government Lead.Ability to work independently and troubleshoot problems with speed and efficiency.Ability to work closely with others in a team environmentAbility to interface with all customer levels.Strong analytical and problem-solving skills Strong analytical and problem-solving skillsIf youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.Original Posting:December 11 2025For U.S. Positions: While subject to change based on business needs Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.Pay Range:Pay Range $116350.00 - $210325.00The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job education experience knowledge skills and abilities as well as internal equity alignment with market data applicable bargaining agreement (if any) or other law.Required Experience:Senior IC Key Skills Active Directory,VMware,Computer Networking,Microsoft Windows Server,Solaris,Windows,Linux,SAN,System Administration,Operating Systems,Dns,CentOS Employment Type : Full-Time Experience: years Vacancy: 1 Monthly Salary Salary: 116350 - 210325