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Legato, LLC recruiters (Staffing@legatocorp.com) would love to speak with you regarding the following position: Windows CNO Developer in Dulles, VA.
Security Clearance Required: TS/SCI minimum
What You Will Do:
We are seeking a highly skilled CNO Developer with strong reverse engineering capabilities to support advanced research, systems development, and threat analysis. This role requires deep knowledge of the Windows operating system internals, low-level programming, and the ability to analyze and deconstruct binaries for vulnerabilities, malware, or undocumented system behavior. Design, develop, and maintain low-level kernel-mode components, drivers, and subsystems for Windows platforms. Perform reverse engineering of Windows binaries (both legitimate and malicious) to understand system behavior, exploits, or undocumented APIs. Conduct vulnerability research and proof-of-concept exploit development. Analyze crash dumps, root cause bugs, and provide kernel-level debugging and troubleshooting support. Collaborate with cybersecurity researchers, analysts, and software engineers to support security-focused development efforts. Document findings, architecture, and procedures clearly for internal teams or external clients.
Our minimum requirements for this role:

• Active TS/SCI clearance.
• 3+ years of CNO development experience with Windows.
• Bachelor's or Master's degree in Computer Science, Computer Engineering, or a related field (or equivalent experience).
• Previous experience in Windows kernel development.
• Proficient in C/C++ for systems-level programming.
• Expertise with reverse engineering tools such as IDA Pro, Ghidra, x64dbg, WinDbg, and Hex-Rays.
• In-depth understanding of Windows internals (e.g., kernel-mode drivers, memory management, system calls, PE file format).
• Experience with kernel-mode debugging and root cause analysis.
• Familiarity with secure coding practices and low-level exploit mitigation techniques (e.g., PatchGuard, CFG, DEP/ASLR).
• Strong understanding of malware behavior and techniques

About Your New Company
Legato, LLC is a dynamic small business headquartered in Columbia, near Ft. Meade, MD. Our positions include Cyber, Software, Systems, Networking, Data Science and other complex engineering capabilities. We set ourselves apart by having employees in the top of their field and who enjoy working at Legato for its attention to its employees, aggressive compensation, and upward mobility possibilities.
We offer a generous benefits package including individual and family health, vision and dental benefits. A minimum of four (4) weeks of paid time off including a week of sick leave. Legato gives our employees 11 federal holidays off and a 401(k) employer match with no vesting schedule. There is an opportunity to earn referral benefits or bank hours if the contract allows.
Disclaimer: The salary range provided is an estimate based on current market conditions and may be adjusted based on factors such as experience, skills, and qualifications. The final salary offer will be determined after a thorough review of the candidate's background and alignment with the role. Please note that this range is subject to change and should be considered as a guideline rather than a definitive figure.
Legato LLC is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, or disability status.