> Markdown version of [/jobs/ext/1029749-principal-linux-administrator](https://www.wearedevelopers.com/jobs/ext/1029749-principal-linux-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Linux Administrator - **Company:** RTX - **Location:** El Segundo, CA, United States - **Salary:** $95,500.0 - $181,700.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Backup Devices, CompTIA Security+, Cyber Security, Dynamic Host Configuration Protocol, Desktop Computing, Linux, RAID, Domain Name System (DNS), VMware ESX Servers, Windows Servers, Network Service, Red Hat Enterprise Linux, Ansible, Server Administration, Vcenter - **Published:** June 17, 2026 - **Apply:** https://dejobs.org/x/x/AD768FC6F1D14E239E3C51A416E1DBE2/job/ ## About the Role * Provide IT systems administration in a heterogeneous Microsoft Windows and RedHat Enterprise Linux environment. * Working as a team member in a fast-paced technological environment. Use troubleshooting techniques to resolve technical problems of basic to moderate scope and complexity to include the integration of hardware and operating systems. * Execute actions as directed by senior staff and project management. * Engage in cross-team collaboration and align with expectations of leadership team. * Manage ESXi, VCenter and Microsoft windows domains * Experience with Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods. * Experience with hardware RAID, hardware and software encryption and server management tools. * Perform data backup and restore, using industry best practice. * Install and configure software applications requested by end users. * Work with Cybersecurity professionals to maintain security requirements. * Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date. * Systems are operational 24x7 and occasionally require work effort beyond standard work hours. * Travel required as business needs dictate to other US Domestic locations, up to 10% per year. * Full time 100% Onsite position. Qualifications You Must Have: * Typically requires a University degree or equivalent experience and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years experience. * Active and transferable U.S. government issued Top Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. * Experience with Windows and/or Linux. Qualifications We Prefer: * Experience Deploying Windows workstations and migrating end-user data. * Experience with cloning techniques. * Use and guide use of automation tools e.g. Ansible. * Experience with operating system concepts and implementations. * Microsoft Windows Active Directory Services administration and support (e.g. user and computer objects administration, Group Policy). * Experience with network services related to Microsoft Windows environment (e.g. DC, DNS, DHCP, etc.). * Experience with supporting desktop / workstation hardware. * Experience with an IT incident/service request system. ## Related Videos - [Develop on Windows, Deploy on Red Hat Enterprise Linux](https://www.wearedevelopers.com/videos/1600-develop-on-windows-deploy-on-red-hat-enterprise-linux) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Dev & Test in the Cloud? 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