Junior Offensive Cyber Engineer

00180 Dynetics, Inc; 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 to join our team in Lawton, OK. In this entry-level role, you will assist in conducting technical security assessments, supporting penetration testing activities, and collaborating with detection engineering and defensive teams (CEMA Resiliency System) to improve organizational threat detection.

Primary 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 CEMA Resiliency System (CRS) team and detection engineering teams to understand how offensive findings translate into defensive detection rules.
• Participating in operational testing events and support real-world validation of security tools and exploits.
• Researching and review technical documentation, security classification guides, and system architectures alongside senior staff.
• Contributing to after-action reports, technical documentation, and remediation recommendations for security stakeholders.

Basic 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.

Preferred Qualifications

• Certifications: Entry-level or foundational cybersecurity certifications (e.g., CompTIA Security+, CompTIA PenTest+, eJPT, PNPT, CEH, GIAC GSEC, or active progress toward OSCP).
• Hands-On Lab/Competition Experience: Participation in Capture The Flag (CTF) competitions, Hack The Box, TryHackMe, or university cyber defense/attack teams.
• Tool Familiarity: Academic, lab, or internship experience with security tools (e.g., Nmap, Wireshark, Burp Suite, Metasploit).
• Reverse Engineering / Systems: Coursework or exposure to binary analysis, assembly language, or basic reverse engineering.
• Modern Environments: Academic exposure or basic understanding of cloud environments (AWS, Azure) and version control systems (Git).
• Communication: Ability to document technical steps clearly and present findings to technical peers.
• Previous DoW experience.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Pay Range: Pay Range $57,850.00 - $104,575.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.