Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in the intelligence community, defense, civil, and commercial markets. **Senior CNO Developer** Are you a highly talented software engineer looking for an opportunity to make career-defining significant impacts? Cyber Offense and Defense Experts (CODEX) is seeking a motivated individual with a passion for advanced engineering and software development. We are looking for individuals who enjoy working on a mission-focused team that works very closely with our end users. **CODEX Culture** We foster an environment where we’re delivering products and capabilities that push beyond the state of the art. Occasional failure does not deter us. True innovation comes from trying new things and seeing what works. We understand that this approach can be challenging so we take our breaks seriously, too! Smash Bros©, D&D© and tabletop games fill our free time. Our cafes are fully stocked with free snacks and beverages and lunch is catered weekly. We strive to create a relaxed culture with an unmatched rate of mission results. **Benefits** In addition to competitive salaries, CODEX offers excellent benefits for you and your family: competitive medical, dental and vision plans, child, elderly and dependent-care programs, mental health resources, tuition assistance, employee discount programs, 401k matching, flexible work schedules (depending on program), a peer recognition and reward system, and performance-based bonuses. **Position Description** Nightwing Cyber Offense and Defense Experts (CODEX) is seeking a cyber engineer to join our team to solve modern cyber challenges while developing custom Computer Network Operations (CNO) tools and innovative techniques. The majority of work is developed in Python, C, C++, and Assembly on embedded, Windows, and POSIX systems targeting low-level user space or kernel space execution. The developer diagnoses issues and debugs customer problems using industry standard tools as well as custom toolsets. In addition, the candidate is responsible for end-to-end design, development, and standard developer testing of the developed software. The software developer also writes documentation pertinent to operating and supporting the developed software and techniques. Daily activities include software development, toolchain/helper tool development, and use of debuggers, disassemblers, and other diagnostic software. Other activities include attending design meetings, mentoring junior developers, and performing code reviews. CNO software developers interface with other developers as well as customer personnel to solve problems and communicate requirements, status, and other information. They also mentor and lead junior-level developers to accomplish mission objectives and solve real-time engineering challenges. **Security Clearance** Current TS clearance required **Technical Requirements** + 3 or more years of experience with Windows, OS X, Linux system APIs (POSIX, win32, win native api), embedded, or network devices + 3 or more years of experience in C programming + Python programming experience + Multi-threaded programming + Socket programming + Strong assembly knowledge (including at least x86 and x86_64) + Expert debugging experience + Strong familiarity with low-level systems programming + Source code control tools (git, Atlassian, or similar) and their usage + Expert understanding of how vulnerabilities in Linux, Unix, OS X, and web applications function + Software design and architecture **Desired Experience** + Some kernel programming knowledge + Experience using disassemblers such as Ghidra or IDA Pro + Strong familiarity with software security technologies such as ASLR and DEP + Experience with additional architectures (ARM, etc.) **Required Education** Bachelor’s degree (STEM preferred) and typically 5 years of prior related experience or an advanced degree with 3 years of experience. _At Nightwing, we value collaboration and teamwork. You’ll have the opportunity to work alongside talented individuals who are passionate about what they do. Together, we’ll leverage our collective expertise to drive innovation, solve complex problems, and deliver exceptional results for our clients._ _Thank you for considering joining us as we embark on this new journey and shape the future of cybersecurity and intelligence together as part of the Nightwing team._ _Nightwing is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class._