Windows CNO Developer

M9 Solutions is seeking a Windows CNO Developer to work on-site in support of a government contract for a client located in Arlington, VA. An active TS/SCI clearance is required. The developer will research, design, develop, and maintain CNO/CNE tools and capabilities targeting Windows platforms, perform reverse engineering, and collaborate with analysts, operators, and other engineers.

Requirements

• Active TS/SCI clearance
• 7–10+ years of professional software development focused on low-level or systems programming, with significant experience on Windows
• Demonstrated, hands-on Windows kernel vulnerability research experience: analyzing kernel internals, developing PoCs, and understanding exploitability and mitigations
• Strong proficiency in C and C++, plus experience with Python for tooling/automation and x86/x64 Assembly for exploit and implant development
• Deep understanding of Windows internals (kernel architecture, memory management, process/thread model, I/O, driver model, security mechanisms, and Windows APIs)
• Experience with reverse engineering tools such as IDA Pro, Ghidra, WinDbg, x64dbg, or similar, and comfort reading disassembly and decompiled code
• Solid knowledge of networking protocols (TCP/IP, HTTP(S), DNS) and socket programming relevant to CNE tool communications and C2 channels
• Experience with secure software development lifecycle: design, develop, test, debug, document, and maintain complex codebases, preferably in Agile teams
• Familiarity with version control (Git) and modern dev toolchains (Visual Studio, CMake, CI workflows)

Benefits

• Paid Time Off
• 401k Matching
• Retirement Plan
• Health Insurance
• Life Insurance
• Disability Insurance