Associate Offensive Cyber Engineer – PenTest & Detection

Leidos; Lawton (OK); On-site; USD 58,000 - 105,000; Full time

Job summary

Leidos is seeking an offensive cyber engineer in Lawton, OK, to assist in security assessments, penetration testing, and collaboration with detection and defensive teams to improve threat detection.

In this entry-level role you will develop basic automation scripts, support tests, and document findings. US citizenship and TS/SCI clearance are required; on-site work in Lawton with potential travel to testing events.

Qualifications

• Bachelor's degree in Cybersecurity, Computer Science, Computer Engineering, Electrical Engineering, or a related technical discipline.
• Foundational knowledge of Linux distributions (e.g., Kali, Parrot, Ubuntu) and Windows operating systems.
• Basic scripting or programming ability (e.g., Python, Bash, or PowerShell).
• Foundational understanding of computer networking principles (TCP/IP, routing, common ports/protocols) and core cybersecurity concepts.
• Strong analytical, problem-solving, and continuous learning mindset.
• Willingness to work on-site in Lawton, OK (or relocate prior to start date) and travel to testing events as required.
• US citizenship required.
• Must be able to obtain and maintain a TS/SCI Clearance.

Responsibilities

• Assisting in developing basic automation scripts and custom proof-of-concept exploits based on identified vulnerabilities.
• Supporting senior engineers in executing penetration tests, vulnerability assessments, and network protocol analyses across enterprise and government environments.
• Collaborating with the CRS and detection engineering teams to translate offensive findings into defensive detection rules.
• Participating in operational testing events and support real-world validation of security tools and exploits.
• Researching and reviewing technical documentation, security classification guides, and system architectures with senior staff.
• Contributing to after-action reports, technical documentation, and remediation recommendations for security stakeholders.

Skills

Linux basics

Scripting

Networking basics

Analytical mindset

On-site required

US citizenship

TS/SCI clearance

Education

Bachelor's degree in Cybersecurity/CS/CE

Tools

Nmap

Wireshark

Burp Suite

Metasploit

Job description

Leidos is seeking an offensive cyber engineer in Lawton, OK, to assist in security assessments, penetration testing, and collaboration with detection and defensive teams to improve threat detection.

In this entry-level role you will develop basic automation scripts, support tests, and document findings. US citizenship and TS/SCI clearance are required; on-site work in Lawton with potential travel to testing events.