Junior Offensive Cyber Engineer

Leidos is seeking a Junior Offensive Cyber Engineer to conduct technical security assessments and penetration tests on enterprise and government systems. You will develop exploits and scripts, assess network, web, and cloud environments, and collaborate with defensive teams to improve threat detection. This position is on-site in Lawton, Oklahoma, with travel to testing events as needed.

Responsibilities

• Develop custom exploits, payloads, and automated scripts to address identified vulnerabilities.
• Conduct vulnerability assessments and assist with penetration tests of networks, web applications, and cloud environments.
• Collaborate with defensive and detection engineering teams to test and improve threat detectors using offensive tactics.
• Participate in operational testing events to evaluate exploit effectiveness in realistic environments.
• Review technical documentation, architecture diagrams, and security classification guides.
• Document assessment findings, remediation guidance, technical reports, and after-action reviews.

Required Skills

• Penetration testing
• Vulnerability assessment
• Exploit development
• Python scripting
• Bash scripting
• Power
• Shell scripting
• Linux administration
• Windows operating systems
• TCP/IP networking
• Network architecture