Jr. Offensive Cyber Engineer

Leidos•Lawton, OK

23h•$69,550 - $125,725•Onsite

About The Position

Leidos is seeking a Jr. Offensive Cyber Engineer for its INTEL Sector's Cyber & Analytics Business Area (CABA), based on-site in Lawton, Oklahoma. The role requires hands-on experience in penetration testing and/or detection engineering. The engineer will perform technical security assessments, conduct penetration tests on enterprise and government systems, and collaborate with defensive security teams, including the CEMA Resiliency System (CRS), to turn offensive tactics into effective threat detections. The position may require travel to testing events.

Requirements

Bachelor’s degree in Cybersecurity, Computer Science, Computer Engineering, Electrical Engineering, or a related technical discipline and at least 2 years of relevant experience; or a Master’s degree and 0 or more years of experience; or 6 or more years of related experience in lieu of a degree.
At least 2 years of hands-on technical experience in penetration testing, vulnerability assessments, or red teaming.
Working proficiency with Linux distributions such as Kali, Parrot, or Ubuntu, and with Windows operating systems.
Ability to write scripts or tools using languages such as Python, Bash, or PowerShell.
Solid understanding of TCP/IP, network architecture, and common vulnerability classes.
U.S. citizenship and ability to obtain and maintain an active Top Secret / Sensitive Compartmented Information (TS/SCI) security clearance.
Willingness to work on-site in Lawton, Oklahoma, or relocate before the start date, and to travel to testing events as required.

Nice To Haves

Industry-recognized certifications such as OSCP, GPEN, GWAPT, CPTS, PNPT, CEH, CompTIA PenTest+, or GSEC.
Experience with standard assessment and exploitation tools such as Burp Suite, Metasploit, Nmap, OWASP ZAP, or Cobalt Strike.
Hands-on exposure to assessing cloud environments such as AWS, Azure, or GCP, and cloud assessment tools such as ScoutSuite, Pacu, or Prowler.
Familiarity with MITRE ATT&CK, threat detection engineering, SIEM/EDR rule development, or SOC operations.
Coursework or practical experience in reverse engineering, assembly, or binary analysis.
Prior experience supporting DoD or government systems and handling classified data.

Responsibilities

Develop custom exploits, payloads, and automated scripts based on identified system vulnerabilities.
Conduct vulnerability assessments and assist with penetration tests involving network protocols, web applications, and cloud environments.
Collaborate with CEMA Resiliency System (CRS) and detection engineering teams to validate, test, and improve threat detectors based on offensive tactics, techniques, and procedures (TTPs).
Participate in operational testing events to verify exploit effectiveness in realistic, mission-critical environments.
Research technical system documentation, architecture diagrams, and security classification guides.
Document findings and prepare technical reports, remediation guidance, and after-action reviews for technical and project stakeholders.