
Education Requirements:
Bachelor's degree in a related specialized area or equivalent relevant experience is required, plus a minimum of 2 years of relevant experience; or a Master's degree.
Clearance Requirements:
Department of Defense TS/SCI security clearance is required at time of hire with the ability to obtain a Polygraph within a reasonable amount of time. 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.
General Dynamics Mission Systems has an immediate opening for a Cyber Network Defender (ISSO). This position provides an opportunity to further advance the cutting-edge technology that supports some of our nation’s 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.
Role and Position Objectives: Join our team as a Cyber Network Defender (ISSO) for Space, Cyber and Intelligence Systems! You'll be part of a versatile team managing the entire Cyber lifecycle, from governance and policy to accreditation, continuous monitoring, and incident response.
What You’ll Experience:
What You Bring to the Table:
What Sets You Apart:
Our Commitment to You:
INTERFACE:
A minimum of an IAM Level II or IAT Level II/III (DoD 8570/8140.01) certification is required at time of hire.
CLEARANCE REQUIREMENTS:Current or active Department of Defense Top Secret clearance with SCI eligibility required with ability to obtain a Polygraph 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.
Workplace Options: This position is based 100% on-site in San Antonio, Texas.
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.
USD $82,015.00 - USD $88,743.00 /Yr.
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

At General Dynamics Mission Systems, a business unit of General Dynamics, we develop mission critical C4ISR solutions across the land, sea, air, space and cyber domains, but that doesn’t tell our whole story.
When downed pilots are isolated in enemy territory, our equipment gives them a lifeline to call home. When a student opens a textbook to learn about the universe, they’re looking at data and pictures sent using our technology. When the government needs to share crucial top-secret information, our products help them keep this information out of the wrong hands. When sailors need to locate underwater mines, our technology allows them to find explosives with unmanned underwater vehicles.
Delivering C4ISR technology is what we do but we think why we do it is more important.