Hiring: Principal Systems Engineer Company: General Dynamics Information Technology Location: McLean, VA Job Posted Time: 2026-09-10 11:13:15 Employment Type: On-site Target Skills & Keywords : AI, Debian, Linux, Red Hat, Security Clearance About the job Experience: •8 + years of related experience •Advance how our customers operate while you advance your career. Join GDIT as a Systems Engineer Principal and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you. •MEANINGFUL WORK AND PERSONAL IMPACT •Lead day-to-day engineering and operations of Red Hat and other Linux systems in a classified, air‑gapped environment, including configuration, hardening, patching, and maintenance. •Configure, patch, and monitor systems and network devices using tools such as Palo Alto firewalls, Cisco switches, Panorama, ClearPass, and related platforms, ensuring performance, integrity, connectivity, and backup/recovery capabilities. Required Skills: •Linux Development, Linux Kernel, Networking, Systems Architecture •Applied hands-on capability in Red Hat operating system •Understanding of various Linux operating systems (e.g., Red Hat, Debian) •Applied hands-on capability in operations and maintenance (O&M) of Palo Alto firewalls, Cisco switches, and applicable software including Panorama and ClearPass Qualifications: •Security clearance level: Current and active Top Secret •Partner cross-functionally with enclave, network, and security engineers, and vendors to troubleshoot issues, enhance the enclave’s network and security posture, and manage security updates, licenses, and support tickets. Compensation: •$130,050 - $175,950 / year •Competitive benefits and rewards package •Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!