Cybersecurity Penetration Tester

Leidos is seeking a Penetration Tester to assess and strengthen cyber defenses for government and commercial clients. You will plan and execute network, application, and cloud penetration tests, conduct red-team exercises, and perform social engineering assessments. Responsibilities include developing threat models, identifying and exploiting vulnerabilities, writing detailed technical reports, and presenting remediation guidance to stakeholders. You will collaborate with cross-functional teams, stay current on emerging threats and tools, and help mature Leidos' offensive security methodologies and secure development practices.

Responsibilities

• Plan and execute network, application, and cloud penetration tests
• Conduct red-team exercises and social engineering assessments
• Develop threat models and identify exploitable vulnerabilities
• Use industry-standard tools and custom scripts to perform attacks
• Document findings and develop detailed technical reports
• Present results and remediation recommendations to stakeholders
• Collaborate with security, engineering, and operations teams
• Support secure development practices and security architecture reviews
• Stay current with emerging threats, TTPs, and security tools
• Contribute to continuous improvement of offensive security methodologies

Required Skills

• Network penetration testing
• Web application penetration testing
• Cloud security assessment (AWS/Azure/GCP)
• Red teaming and adversary emulation
• Social engineering techniques
• Scripting/programming (Python, Power
• Shell, Bash)
• Vulnerability assessment and exploitation
• Reporting and technical documentation
• Threat modeling and risk assessment
• Use of tools like Burp Suite, Metasploit, Nmap, Kali