Senior Linux Administrator

Concept 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 management

Automation, 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 efficiency

Security, 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 initiatives

Cloud, 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 dependencies

Operations, 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 stakeholders