Senior Linux Administrator

Senior Linux AdministratorConcept Solutions is seeking a Senior Linux Administrator to support the FAA's Infrastructure & Operations (I&O) Program in managing, securing, automating, and optimizing enterprise Linux and hybrid cloud environments across physical, virtual, and cloud-based infrastructure. This role is responsible for Linux systems administration, OS lifecycle management, automation, security compliance, patching, and infrastructure modernization in support of mission-critical FAA operations.The Senior Linux Administrator will serve as a technical expert supporting Red Hat Enterprise Linux (RHEL) across enterprise environments. This position focuses on advanced Linux administration, automation, cloud provisioning, security hardening, patching, storage, virtualization, and operational consistency through infrastructure-as-code and DevSecOps practices. The ideal candidate brings strong scripting, cloud, virtualization, and security expertise with the ability to support large-scale enterprise deployments while maintaining FAA operational and compliance standards. Participation in monthly weekend patching rotation with partial flex scheduling.Linux Systems Administration & Engineering• Administer, configure, maintain, and troubleshoot enterprise Linux environments consisting of RHEL 7+.• Manage Linux OS lifecycle processes including automated deployment, provisioning, maintenance, patching, and decommissioning across physical, VMware, Nutanix, and cloud environments• Build and deploy Linux systems from bare metal, virtual infrastructure, and cloud platforms using standardized automation frameworks• Manage Linux storage, partitioning, RAID groups, file systems, volume management, and backup/recovery processes• Support Linux Active Directory integration, FreeIPA authentication services, and enterprise identity managementAutomation, Scripting & DevSecOps• Develop and maintain automation solutions using Python, Bash, PowerShell, Terraform, and Ansible• Automate OS deployments, patching, software distribution, server configuration, and lifecycle management• Build and manage AMIs, deployment templates, and cloud/virtual images• Support Git/Bitbucket workflows and DevSecOps toolchains• Leverage AI-assisted development tools (e.g., Visual Studio Code frameworks) to improve operational efficiencySecurity, Compliance & Patching• Implement and maintain Linux security controls including SELinux, iptables, STIGs, OpenSTIG, and OS firewall configurations• Perform vulnerability remediation, security hardening, and compliance validation• Execute automated OS patching using tools such as Tanium or Red Hat Satellite• Participate in scheduled monthly patching rotations, including weekend maintenance windows• Support change control, audit readiness, and agency security initiativesCloud, Virtualization & Infrastructure• Provision and manage AWS/Azure cloud services including EC2, S3, RDS, Security Groups, and cloud accounts• Support VMware and Nutanix guest OS deployment and management• Manage enterprise storage solutions across virtualization and cloud platforms• Troubleshoot network connectivity, TCP/IP, subnetting, and port/service dependenciesOperations, Documentation & Collaboration• Support incident, service request, and break-fix activities through Jira and ServiceNow• Document operational procedures, deployment processes, and technical standards in internal knowledge bases/Wikis• Collaborate with Agile teams, infrastructure engineers, security teams, and application owners• Provide exceptional customer service while supporting enterprise stakeholdersRequirements• Bachelor's degree in Information Technology, Computer Science, or related field and 8+ years of relevant experience• Strong experience administering Red Hat Enterprise Linux (RHEL 7+) environments• Strong scripting experience in Python and Bash• Experience with Terraform, Ansible, PowerShell, Git/Bitbucket• Knowledge of Linux security including SELinux, iptables, STIG implementation, OpenSTIG• Experience with AWS/Azure cloud provisioning• Experience with VMware and/or Nutanix• Knowledge of Active Directory integration• Experience with Tanium, Satellite, or enterprise patch automation• Strong TCP/IP networking fundamentals• Ability to obtain RHCSA certification or equivalentPreferred Qualifications• AWS Cloud certifications (Cloud Practitioner plus advanced certification such as Solutions Architect, Developer, or Security)• Experience with FreeIPA• Experience supporting large-scale federal or regulated enterprise environments• Familiarity with Agile/DevSecOps methodologies• Experience with enterprise backup/recovery strategiesWork Location and SchedulePrimary Location: Atlantic City, NJSchedule: Hybrid- 3 days a week in the officeFAA Personnel Suitability clearance required (AMS 3.14-2)Compensation: $95K to $108K