Principal CNO Developer

Salary: $108,000 - 148,000 per year Requirements: We require TS/SCI clearance. We typically seek a bachelors degree in Science, Technology, Engineering, or Mathematics, preferably STEM, plus at least 10 years of prior engineering experience, or an equivalent background where permitted by local laws and regulations. We need experience with C/C++ on Unix/Linux platforms, including Make/CMake build systems. We look for experience with Python and practical knowledge of project execution. We need the ability to enhance and develop software tools. We require understanding of low-level programming concepts. We look for experience with source management tools. We want familiarity with stack frames, calling conventions, and memory management. We require understanding of network protocols, such as TCP/IP stacks, wire-level protocols, RF communications, BGP, routing protocols, or similar. We may prefer practical knowledge of project management. Desired skills include experience developing and productizing N-days. Desired skills include using full system emulation for research and analysis. Desired skills include experience with assembly language such as x86/64, ARM, PPC, or MIPS. Desired skills include experience with Linux/Unix bootloaders such as u-boot or aboot. Desired skills include knowledge of SELinux, cgroups, and other Linux permission models. Desired skills include experience developing against or working with large open-source projects. Responsibilities: We work across the full lifecycle, including emulation, reverse engineering, vulnerability research, and CNO/CNE tool development for various operating systems. We perform vulnerability research, reverse engineering, development, testing, maintenance, and modification of complex classified and unclassified software applications. We serve as the technical lead on cyber engineering projects and guide engineering teams to meet requirements and best practices. We act as the primary technical point of contact for clients and translate complex needs into actionable work. We travel to customer sites for key test events, provide on-site technical support, and assess and secure client systems in real-world environments. We mentor junior engineers by offering technical guidance, training, and career development support. We develop and maintain technical documentation, project plans, and status reports. We work in small teams with close customer coordination to improve capabilities or resolve issues in existing tools. We use source management tools such as GIT and team coordination tools like the Atlassian suite. We deliver results on relatively short turnaround timelines. Technologies: ARM Atlassian Git Support Linux Network Python TCP/IP Unix C++ Security More: We are collaborating with hackajob to connect with exceptional professionals for this onsite Senior Principal Cyber Engineer role at Nightwing CODEX. We provide technically advanced full-spectrum cyber, data operations, systems integration, and intelligence mission support services across intelligence, defense, civil, and commercial markets. Our team values collaboration and teamwork, working alongside talented people to solve complex problems and deliver exceptional results. We offer a strong total rewards package, including healthcare, wellness, retirement, work/life benefits, career development and recognition programs, parental leave, flexible work schedules, achievement awards, educational assistance, child/adult backup care, medical, dental and vision coverage, mental health resources, tuition assistance, employee discounts, 401(k) matching, peer recognition, and performance-based bonuses. We are an equal opportunity/affirmative action employer and welcome qualified applicants across protected classes. last updated 34 week of 2026