Information System Security Engineer (ISSE)

Posted Date 10 hours ago(11/26/2025 3:30 PM)
ID
2025-69353
Job Location
USA-TX-San Antonio
Required Clearance
TS/SCI with Polygraph, obtainable within reasonable time based on requirements
Category
Engineering-Other
Employment Type
Full Time
Hiring Company
General Dynamics Mission Systems, Inc.

Basic Qualifications

Requires a Bachelor’s degree in Engineering, or a related Science 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 TS/SCI with Polygraph 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

What You’ll Experience:

  • Ensure systems comply with ICD 503 and DoD JSIG requirements.
  • Manage security accreditation of networks and systems.
  • Create and maintain documentation for external connections (ISAs, ATOs, IATTs, MOAs, MOUs).
  • Conduct security testing of system patches, software, and configurations.
  • Develop and enforce security policies with Program Office and Government guidance.
  • Conduct security assessments for system upgrades and patches.
  • Generate and update A&A documentation and artifacts.
  • Perform vulnerability scans and continuous monitoring.
  • Provide first-level incident reporting and evaluate IAVM reports.
  • Interface with the customer Information System Security Manager.
  • Offer cybersecurity input to Project and Program Managers.

What You Bring to the Table:

  • Understanding of ICD 503 and DoD JSIG requirements.
  • Experience in security accreditation and documentation.
  • Proficiency in security testing and assessments.
  • Ability to develop and enforce security policies.
  • Skills in vulnerability scanning and continuous monitoring.
  • Effective communication with security managers and program managers.

What Sets You Apart:

  • Experience in security documentation and testing.
  • Strong analytical skills for vulnerability evaluation.
  • Proactive cybersecurity management.
  • Commitment to continuous improvement and staying updated on security standards.

Our Commitment to You:

  • Career opportunities with continuous learning and development.
  • Competitive benefits including 401k matching, flexible time off, healthcare, and wellness programs.
  • Be part of a team that supports mission-critical operations and makes a true impact.

Requirements:

  • A minimum of an IAT Level II (DoD 8570/8140.01) certification at the time of hire: e.g., CompTIA Security+, GSEC, SSCP, and CCNA-Security.

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 $121,363.00 - USD $134,638.00 /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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