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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Linux Systems Administrator - **Company:** AeroVironment, Inc. - **Location:** Arlington, VA, United States - **Experience:** Expert - **Salary:** $91,000.0 - $138,750.0 - **Contract:** Permanent contract - **Skills:** Active Directory, Amazon Web Services, User Authentication, Microsoft Azure, Bash Shell, Ubuntu (Operating System), Configuration Management, CompTIA Security+, Cyber Security, Databases, Custom Software, Data Centers, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), Multi-Factor Authentication, VMware ESX Servers, Federal Information Processing Standards (FIPS), FlexNet Publisher, Identity and Access Management, Multipath I/O, Internet Small Computer System Interface (ISCSI), Python (Programming Language), Kerberos (Protocol), Lightweight Directory Access Protocols (LDAP), Linux Kernel, Linux System Administration, Linux Servers, Logical Volume Manager, Network File Systems, Network Time Protocols, Performance Tuning, Public Key Infrastructure, Red Hat Enterprise Linux, Software Tools, Ansible, Prometheus, Server Administration, Security Information and Event Management, Smart Cards, Storage Virtualization, Systems Integration, Toolchain, Oracle Linux, Virtualization Technology, VMware VSphere, Zabbix, Automatic Programming, Data Logging, Scripting, Cloud Platform System, Software Distribution, Okta, Grafana, Multi-Cloud, Build Management, Containerization, Selinux, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Patch Management, Data Management, Hardware Infrastructure, 3-tier Architectures, Puppet, Terraform, Oracle Cloud Infrastructure, Engineering Base, Docker - **Published:** August 27, 2026 - **Apply:** https://dejobs.org/x/x/66DD5E11578C4AF2878185E9BDB70661/job/ ## About the Role * Education: Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or equivalent combination of education, technical training, and experience. * Experience: Minimum of 8-12 years of total IT infrastructure experience, with at least 6+ years focused on enterprise Linux systems administration. * Distribution Mastery: Deep, hands-on administration of Oracle Linux (UEK), Red Hat Enterprise Linux (RHEL), and Ubuntu Server/Desktop . * Fleet Management: Proven experience managing Linux endpoints at scale using Canonical Landscape , Red Hat Satellite, or Foreman. * Authentication & MFA: Demonstrated experience implementing Linux desktop and SSH Multi-Factor Authentication (YubiKey, PKI/Smartcard, Duo, or Okta PAM integration). * Compliance & Hardening: Direct experience hardening Linux environments to NIST SP 800-171, CMMC Level 2, or DISA STIG requirements. * Automation: Strong proficiency in Ansible and scripting with Bash or Python . * Virtualization & Storage: Solid experience with VMware vSphere/ESXi and enterprise storage management (LVM, NFS, iSCSI, SAN). * Security Clearance / Export Control: Must be a U.S. Person (U.S. Citizen or Lawful Permanent Resident) due to compliance with ITAR/EAR regulations; ability to obtain and maintain a DoD Security Clearance if required. Other Qualifications & Desired Competencies * Active industry certifications: RHCE / RHCA , LPIC-3 , CompTIA Security+ , or CISSP . * Experience with containerization and orchestration platforms ( Docker, Podman, Kubernetes ). * Hands-on experience integrating Linux infrastructure with Oracle Cloud Infrastructure ( OCI ), AWS GovCloud , or Azure Government . * Familiarity with Linux kernel tuning, custom repository mirroring, and local software distribution pipelines. * Exceptional analytical and troubleshooting skills under time-critical operational conditions. * Strong written and verbal communication skills; ability to document standard operating procedures (SOPs) and compliance artifacts clearly. * High ownership mindset with a focus on cross-functional collaboration across Infrastructure, Security, and Engineering teams. Physical Demands * Standard office/data center environment; prolonged periods sitting or standing at computer workstations. * Periodic physical handling of server hardware, cabling, or rack-mount equipment (up to 35 lbs)., This position requires access to information that is subject to compliance with the International Traffic Arms Regulations ("ITAR") and/or the Export Administration Regulations ("EAR"). In order to comply with the requirements of the ITAR and/or the EAR, applicants must qualify as a U.S. person under the ITAR and the EAR, or a person to be approved for an export license by the governing agency whose technology comes under its jurisdiction. Please understand that any job offer that requires approval of an export license will be conditional on AeroVironment's determination that it will be able to obtain an export license in a time frame consistent with AeroVironment's business requirements. A "U.S. person" according to the ITAR definition is a U.S. citizen, U.S. lawful permanent resident (green card holder), or protected individual such as a refugee or asylee. See 22 CFR § 120.15. Some positions will require current U.S. Citizenship due to contract ## Description The Senior Linux Systems Administrator is responsible for designing, deploying, securing, automating, and maintaining enterprise Linux server infrastructure and developer workstation fleets across on-premises and multi-cloud environments. This role serves as the subject matter expert for enterprise Linux distributions ( Oracle Linux, Red Hat Enterprise Linux, Ubuntu ), configuration management, and centralized orchestration. A primary focus includes managing and scaling Canonical Landscape to administer hundreds of Ubuntu developer desktops within a strict CMMC 2.0 Level 2 / NIST SP 800-171 compliant environment. The ideal candidate brings deep expertise in Linux PAM architecture, enterprise MFA integrations, infrastructure-as-code automation, and defense-in-depth security hardening., * Enterprise Linux Server Administration: Design, build, configure, and maintain mission-critical Linux servers across on-prem (VMware vSphere) and cloud environments (OCI, AWS, Azure), supporting engineering workloads, database platforms, and custom development pipelines. * Developer Fleet Management: Architect, deploy, and administer Canonical Landscape to manage configuration profiles, package repositories, compliance policies, and automated patch management for hundreds of Ubuntu developer endpoints. * Identity & Access Management (MFA/PAM): Implement and enforce robust authentication and authorization frameworks, including smart card/FIPS-compliant MFA at desktop and SSH login, PAM module engineering, SSSD/FreeIPA integration, Active Directory/LDAP bridging, and centralized sudoers delegation. * CMMC L2 & Security Compliance: Harden Linux servers and workstations to NIST SP 800-171, DISA STIG, and CIS Level 2 benchmarks. Implement SELinux/AppArmor enforcement, auditd daemon logging, file integrity monitoring (FIM), and SIEM log forwarding. * Automation & Configuration Management: Develop and maintain Infrastructure-as-Code (IaC) and configuration baselines using Ansible, Terraform, Puppet/Chef, and advanced Bash/Python scripting. * Storage & Virtualization: Configure and troubleshoot enterprise SAN/NAS storage, iSCSI/NFS mounts, multipathing, LVM volumes, and VMware ESXi/vCenter virtualization for Linux guests. * Engineering Tools & Service Desk Escalation: Serve as Tier 3 escalation support for engineering applications, toolchains, build environments, license managers (FlexLM), and core network/directory services (DNS, DHCP, LDAP, Kerberos, NTP). * High Availability & Disaster Recovery: Design robust backup and recovery workflows, test system failover procedures, monitor system health/telemetry (Prometheus, Grafana, Zabbix), and resolve complex performance bottlenecks. ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) - [Crew Management System for Airlines: Plan duties for pilots & flight attendants worldwide](https://www.wearedevelopers.com/videos/1444-crew-management-system-for-airlines-plan-duties-for-pilots-flight-attendants-worldwide) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [DevOps Engineer Salary [2023]](https://www.wearedevelopers.com/magazine/203-devops-engineer-salary-2023)