> Markdown version of [/jobs/ext/4014498-senior-cno-exploit-developer](https://www.wearedevelopers.com/jobs/ext/4014498-senior-cno-exploit-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior CNO Exploit Developer - **Company:** X8 LLC - **Location:** Columbia, MD, United States - **Experience:** Expert - **Salary:** $150,000 - **Contract:** Permanent contract - **Skills:** C (Programming Language), Systems Engineering, C++ (Programming Language), Cyber Security, Computer Programming, X86 Assembly Languages, Python (Programming Language), Reliability Engineering, Reverse Engineering, Software Engineering, Computer Network Operations, Information Technology, Cyber Warfare - **Published:** October 29, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-cno-exploit-developer-columbia-md--182b872e-d868-4581-8969-b5a6d4ca2822 ## About the Role Computer Security, Proof of Concept, Military Operations, Reliability Engineering, Analysis Skills, Operations Planning, Reverse Engineering, Top Secret Clearance, Sensitive Compartmented Information (SCI), Computer Science, * Active TS/SCI clearance with polygraph; CI polygraph required for this requisition. * Bachelor's degree in Computer Science, Information Assurance, Information Security Systems Engineering, or a related discipline, and 8+ years of experience. * At least 5 years of exploit development or Computer Network Operations (CNO) tool development experience. * At least 2 years of programming experience with languages or low-level technologies such as Python, C, C++, or x86 assembly. * Demonstrated ability to analyze proof-of-concept exploits or CVEs and engineer stable, repeatable capabilities. * Extensive experience reverse-engineering compiled binaries and source code to identify vulnerabilities. * Experience developing software for CNO analytic or cloud-related projects. WHAT DESIRED SKILLS YOU'LL BRING * Subject-matter expertise in exploit development and CVE-based vulnerability research. * 10+ years of CNO tool development experience. ## Description X8 is seeking a Senior CNO Exploit Developer to support specialized military cyber operations on the PURPLEPIRANHA contract. This hands-on role focuses on transforming proof-of-concept exploits and disclosed vulnerabilities into reliable, operationally ready capabilities., * Engineer, stabilize, and productize proof-of-concept exploits and CVE-based vulnerabilities for operational use. * Analyze exploit behavior and improve reliability, repeatability, and suitability for live infrastructure. * Collaborate with vulnerability researchers to understand proof-of-concept findings, constraints, and technical details. * Work directly with mission stakeholders to validate that developed capabilities meet operational requirements. * Reverse-engineer compiled binaries and source code to identify vulnerabilities and support exploit development., * Build technically challenging capabilities supporting specialized national defense cyber missions. * Work closely with vulnerability researchers and mission stakeholders on operationally relevant engineering.