Linux System Administrator Cybersecurity Professional

Responsibilities for this Position

Linux System Administrator Cybersecurity Professional

ID: 2026-70386
USA-NC-McLeansville
Required Clearance: TS/SCI, obtainable within reasonable time based on requirements
Posted Date: 1/26/2026
Category: Information Technology
Employment Type: Full Time
Hiring Company: General Dynamics Mission Systems, Inc.


Basic Qualifications

Requires a Bachelors degree in Engineering, or a related Science, Technology or Mathematics field. Also requires 2+ years of job-related experience. or a Master's degree and 6 months of job-related experience.

CLEARANCE REQUIREMENTS:: Department of Defense Secret security clearance is obtainable within a reasonable amount of time after hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.

Responsibilities for this Position

General Dynamics Mission Systems has an immediate opening for a System Administrator / Cybersecurity Professional. This position provides an opportunity to further advance the cutting-edge technology that supports some of our nations core defense/intelligence services and systems. General Dynamics Mission Systems employees work closely with esteemed customers to develop solutions that allow them to carry out high-stakes national security missions.

Overview

Supporting engineering development and maintenance of programs. Lead Information Assurance efforts for several programs. System administration and network designmaintenance, primarily Linux and Cisco. Hands on work supporting all aspects of network maintenance. Candidates need to be capable of performing multiple duties, including Linux installation, hardening, scanning, and patching; Cisco installs, configuration, troubleshooting; hands on cabling, rack/stack, etc.

The position is supporting engineering development programs, not corporate IT.

What you will be doing

Support engineering development and maintenance of programsLinux system administrationNetwork equipment (primarily Cisco) setup and maintenanceDesign and implementation of cybersecurity solutionsWorks well in a team, can accept direction and constructive criticismIndependently identifies tasks or projects that need to be done and effectively prioritizes time to complete multiple assignmentsConducts project planning, cost analysis and vendor comparisonsWillingness to support both domestic and international travel up to 10%Holds ownership by identifying alternatives in the midst of barriers to progressSupports continuous improvement initiative

What we would like you to bring to the table (skills, knowledge, and experience)

Experienced in Linux System Administrator for small/medium size networksUnderstanding of vulnerability and compliance scanning, analysis of the scan results, and security patching specifically for the DoDWorking knowledge of Linux hardeningFamiliarity with cyber security specifications such as Risk Management Framework (RMF), STIGs, and other government security specifications and guidelines.Network architecture and the application of network setup (LAN, NICs, Router Configurations)Experienced in Cisco equipment for small/medium size networksHands-on experience setting up networks, including servers, network infrastructure equipment, and network end devicesAbility to work alone or in a team environmentDemonstrates ability to move into new teams and quickly learn project defined specific process while applying past knowledge and experienceProven documentation skills and technical writingCommunicating technical information clearly so that it may be understood by a non-technical individual

Preferred experience and certifications

Bachelors degree in Engineering, or a related Science or Mathematics field, plus 5 years of relevant experience Linux system administration, RHCSA a bonusNetwork+/Security+ or equivalent experience, CISSP a bonusCisco experience, CCNP a bonusExperience with general network administration, Server+/Linux+ a bonus

Salary Note

This estimate represents the typical salary range for this position based on experience and other factors (geographic location, etc.). Actual pay may vary. This job posting will remain open until the position is filled.

Combined Salary Range

USD $100,219.00 - USD $111,180.00 /Yr.

Company Overview

General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. With a global team of 12,000+ top professionals, we partner with the best in industry to expand the bounds of innovation in the defense and scientific arenas. Given the nature of our work and who we are, we value trust, honesty, alignment and transparency. We offer highly competitive benefits and pride ourselves in being a great place to work with a shared sense of purpose. You will also enjoy a flexible work environment where contributions are recognized and rewarded. If who we are and what we do resonates with you, we invite you to join our high-performance team!

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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General Dynamics Mission Systems is a technology integrator and original equipment manufacturer that provides mission critical solutions across ground, sea, air, space and cyberspace.

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