Senior Network and Cyber Systems Engineer in Manassas, Virginia at Mission Systems

Senior Network and Cyber Systems Engineer

ID: 2026-72862
US-VA-Manassas
Required Clearance: Secret
Posted Date: 6/2/2026
Category: Engineering-Systems
Employment Type: Full Time
Hiring Company: General Dynamics Mission Systems, Inc.
Basic Qualifications

Bachelor's degree in Systems Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 2 years of relevant experience; or Master's degree, plus 6 months of relevant experience.

CLEARANCE REQUIREMENTS:: Department of Defense Secret security clearance is required at time of 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

ROLE AND POSITION OBJECTIVES:

As a Senior Network and Cyber System Engineer on the MIT team, you will execute cybersecurity operations and network engineering tasks across secure environments. This is a dual-role position split evenly between cybersecurity engineering and network engineering. You will contribute to maintaining the security posture and operation of information systems while performing the configuration, troubleshooting, and design support of network infrastructure. The ideal candidate brings developing expertise across both disciplines, demonstrates initiative on assignments, and is comfortable working with moderate supervision in a mission-focused environment.

CLEARANCE REQUIREMENTS:

Department of Defense Secret security clearance is required at time of 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.

Expected Tasking:

• Perform day-to-day operation and maintenance of secure network infrastructures such as SIPRNet and other classified networks.
• Configure, install, and troubleshoot Cisco routers and switches, Palo Alto firewall appliances, and TACLANE encryptors.
• Develop and maintain security and technical documentation including System Security Plans (SSPs), Security Assessment Reports (SARs), and contingency plans for new and fielded information systems.
• Contribute to Assessment and Authorization (A&A) activities, including preparing authorization package artifacts and coordinating with Information System Security Managers and Officers.
• Conduct vulnerability scans using ACAS/Nessus and SCAP Compliance Checker, interpret results, and contribute to remediation planning.
• Manage network services including DNS, DHCP, VPN, LAN/WLAN, and VOIP systems.
• Implement US government COMSEC, NIST, and DCSA standards and practices on information and network systems.
• Contribute to the design and planning of network engineering solutions as part of a team.

What sets you apart:

• A Bachelor’s degree in Network Engineering, Cybersecurity, Computer Information Systems or another related field.
• Considerable understanding of networking concepts including TCP/IP, subnetting, routing protocols, firewall operations, and network virtualization.
• Considerable understanding of cybersecurity principles, including Risk Management Framework (RMF), STIGs, DIACAP, and government security specifications and guidelines.
• Experience with Linux and/or Windows based information systems.
• Written and verbal communication skills, including the ability to clearly report technical findings and security concerns.
• Ability to grasp and apply new information quickly, as well as navigate complex systems and scenarios.
• Takes initiative on assignments and professional execution of projects with little direction.

Our Commitment to You:

• An exciting career path with opportunities for continuous learning and development.
• Research oriented work, alongside award winning teams developing practical solutions for our nation’s security
• Flexible schedules with every other Friday off work, if desired (9/80 schedule)
• Competitive benefits, including 401k matching, flex time off, paid parental leave, healthcare benefits, health & wellness programs, employee resource and social groups, and more
• See more at gdmissionsystems.com/careers/why-work-for-us/benefits

Workplace Options:
This position is fully on-site.
While on-site, you will be a part of the Manassas Virginia facility

Travel of at least 10% will be required.

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 $90,833.00 - USD $100,767.00 /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

#GDMS-US#