Jr. Offensive Cyber Engineer

Leidos•Lawton, OK

6d•Onsite

About The Position

Leidos is hiring a Jr. Offensive Cyber Engineer for its INTEL Sector’s Cyber & Analytics Business Area (CABA), based on-site in Lawton, Oklahoma. The role involves technical security assessments and penetration testing of enterprise and government systems, followed by collaboration with defensive security teams to turn offensive tactics into effective threat detections. The engineer will also participate in operational testing events in mission-critical environments, research technical and security documentation, and prepare findings and remediation materials.

Requirements

Bachelor’s degree in Cybersecurity, Computer Science, Computer Engineering, Electrical Engineering, or a related technical discipline with 2+ years of relevant experience; or a master’s degree with 0+ years of experience; or 6+ 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 Windows operating systems.
Ability to write scripts or tools in languages such as Python, Bash, or PowerShell.
Solid understanding of TCP/IP, network architecture, and common vulnerability classes.
Must be a U.S. citizen and able to obtain and maintain an active TS/SCI security clearance.
Willingness to work on-site in Lawton, Oklahoma, or relocate before the start date, and 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 assessment and exploitation tools such as Burp Suite, Metasploit, Nmap, OWASP ZAP, or Cobalt Strike.
Hands-on exposure to evaluating AWS, Azure, or GCP environments 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 working with classified data handling procedures.

Responsibilities

Develop custom exploits, payloads, and automated scripts based on identified system vulnerabilities.
Conduct vulnerability assessments and assist with penetration tests across 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 author technical reports, remediation guidance, and after-action reviews for technical and project stakeholders.