Cyber Security Analyst at Mission Systems – San Antonio, Texas

Cyber Security Analyst

ID: 2026-70405
USA-TX-San Antonio
Required Clearance: TS/SCI with Polygraph, obtainable within reasonable time based on requirements
Posted Date: 1/28/2026
Category: Cyber
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 2+ years of job-related experience. or a Master's degree and 6 months of job-related experience.

CLEARANCE REQUIREMENTS:
Department of Defense TS/SCI security clearance is required at time of hire. Candidates must be able to obtain a Polygraph within 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.

Responsibilities for this Position

Job Description: Join General Dynamics Mission Systems as a Cybersecurity Analyst in San Antonio, Texas. Contribute to cutting-edge technology supporting national defense and intelligence services. Collaborate with esteemed customers to develop solutions for high-stakes national security missions.

What You’ll Experience:

• Participate in national-level security assessment and authorization (A&A) activities.
• Analyze and troubleshoot security anomalies using network traffic, log files, and automated alerts.
• Analyze and test security requirements within the lab environment for candidate upgrades and enterprise releases.
• Create and manage security documentation for accreditation activities.
• Develop security policies and procedures and maintain network security platforms.

What You Bring to the Table:

• Hands-on experience with UNIX/LINUX command-line security audits.
• Familiarity with IT government security standards (ICD 503, JSIG, NISPOM, NIST, DIACAP, RMF).
• Experience with security tools like Splunk, Nessus, SCAP Compliance Checker, Clearswift, and VMware.
• Current CISSP certification preferred or other DoD 8570.1 IAM-II or IAT-III or above certification.
• Experience with preparing, reviewing, and submitting Cybersecurity documentation for classified programs.

What Sets You Apart:

• Experience with DoD classified IT system security.
• Ability to create detailed security documentation and reports.
• Strong problem-solving skills and the ability to handle complex security challenges.
• Excellent communication skills for briefings and presentations.
• Strong experience with documenting test environments, requirements, results and POAM resolution
• Experience supporting environments based on Joint Special Access Program (JSIG) in implementation of Risk Management Framework (RMF).
• Experience creating and modifying SPLUNK Dashboards and other SIEM related tools.tools

Our Commitment to You:

• An opportunity to work on meaningful projects that support national security.
• Collaboration with a talented and dedicated team.
• Competitive benefits and a supportive work environment.
• Continuous learning and professional development.
• Strong working relationships with team members and customers.

Workplace Options: This position is based 100% on-site in San Antonio, Texas.

INTERFACE:

• Primary interfaces are Government Program Information Systems Security Manager (ISSM), Operational Team Leads, internal customers, external customers, suppliers
• Establish and maintain a strong working relationship with all team members and across all teams

PREFERRED DEGREE TYPES AND EXPERIENCE:

DoD 8570.1 IAM-II or IAT-III or above certification 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 $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

#GDMS-US#