Junior Penetration Tester: National Security Cyber Ops

General Dynamics IT; Ashburn (VA); On-site; USD 91,000 - 124,000; Full time

Job summary

General Dynamics IT seeks a Penetration Tester Junior to support CBP Cyber Security Directorate operations and national security initiatives in the United States. You will assist in penetration testing across applications, endpoints, networks, and cloud environments, documenting findings and supporting remediation efforts.

With a focus on vulnerability assessment and exploitation steps, you will work alongside senior testers to validate weaknesses, gather evidence, and contribute to audit-ready

Qualifications

• 3+ years of cybersecurity or vulnerability assessment experience.
• Experience executing penetration tests, gathering evidence, documenting vulnerabilities, and validating system weaknesses.
• Experience with common penetration testing tools (Nmap, Nessus, Burp Suite, Metasploit).
• Strong analytical and documentation skills.
• Understanding of exploit development concepts and offensive tooling.

Responsibilities

• Assist in performing penetration tests across applications, endpoints, networks, cloud systems, and mission‑critical environments to uncover security gaps.
• Run discovery and enumeration tasks using industry‑standard testing tools.
• Execute basic exploitation steps under the direction of senior testers.
• Document vulnerabilities with clear descriptions, reproduction steps, and severity scoring.
• Draft technical sections of penetration testing reports for stakeholder awareness.
• Collaborate with system owners and developers to clarify findings and support remediation.

Skills

Cybersecurity Operations

Incident Response

Network Penetration Testing

Security Operations

Vulnerability Remediation

Education

Bachelor's degree in information technology, computer science, cybersecurity or a related field

Tools

Nmap

Nessus

Burp Suite

Metasploit

Job description

General Dynamics IT seeks a Penetration Tester Junior to support CBP Cyber Security Directorate operations and national security initiatives in the United States. You will assist in penetration testing across applications, endpoints, networks, and cloud environments, documenting findings and supporting remediation efforts.

With a focus on vulnerability assessment and exploitation steps, you will work alongside senior testers to validate weaknesses, gather evidence, and contribute to audit-ready