ISSM / Site Lead at Mission Systems – Manassas, Virginia

ISSM / Site Lead

ID: 2026-71854
US-VA-Manassas
Required Clearance: Top Secret, obtainable within reasonable time based on requirements
Posted Date: 4/8/2026
Category: Information Technology
Employment Type: Full Time
Hiring Company: General Dynamics Mission Systems, Inc.
Basic Qualifications

Requires a Bachelor’s degree in Engineering, or a related Science, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience.

CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required at time of hire. Must be able to obtain a Top Secret clearance. 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 need for an ISSM/Site Lead for our GDMS Manassas Campus.

Knowledge, Skills and Abilities:

•Serve as ISSM/Site Lead for GDMS Manassas campus, overseeing ISSO team and DoD computing environment.

•Highly proficient use and understanding of systems engineering concepts, principles, and theories

• Highly proficient understanding of cyber security specifications such as Risk Management Framework

• (RMF), DIACAP, STIGs, NIST SP 800-53, NIST SP 800-171, and other government security specifications and guidelines

• Highly proficient knowledge of cyber security technology and trends

• Contributes to the achievement of business objectives

• Recognizes and incorporates various security designs and lessons learned

• Strong written and verbal communications skills

• Able to sell concepts and ideas

• Highly proficient ability in communicating issues, impacts, and corrective actions as they affect the cyber design and implementation

• Highly proficient ability to clearly report relevant cyber systems engineering design

• Regular contact with senior levels of internal security work groups

• Ability to participate in or lead security work groups

• Works under limited direction

• Contact with project leaders and other professionals within the Engineering department and with project teams

• Maintains contact with the external customers’ security professionals

• Creative thinker, good multi-tasker

• Highly proficient in Microsoft Office applications

• Must be able to obtain a Top Secret Clearance

• Must be have an IAM Certification (i.e., CGRC, CISM, CISSP)

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 $136,837.00 - USD $144,320.00 /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#