Windows CNO Software Engineer

Reference: 731367BRPosted: 2026-06-03Location: Herndon, VirginiaClearance: TS/SCICompany: Lockheed MartinDescription:As a leader in defense technology cybersecurity. Lockheed Martin designs innovative, custom fit capabilities that strengthen both offensive and defensive cyber operations for customer missions. We are seeking Cyber Network Operations (CNO) Windows Developers who want to solve technical challenges and build tools used in real-world applications. Why the CNO Developer role at Lockheed Martin Space:Mission critical impact: Develop state-of-the-art tools and platforms that help our customers to gather intelligence, protect critical infrastructure and outpace evolving threats.Technical expertise: Apply your deep knowledge in traditional computing (Windows/Linux/MacOS), mobile technology (Android/iOS), wireless technology, IoT, ICS/SCADA, enterprise technologies, and special-purpose embedded and real-time systems.Innovation lab environment: Work closely with a collaborative, multidisciplinary team and have direct access to senior cyber strategy leaders.Professional growth: Expand your technical depth through mentorship from senior CNO developers, attend specialized cyber training, and earn certifications while contributing to patented solutions.If you are passionate about building resilient, high impact cyber tools that help our customers to keep the nation’s customer assets safe, join our team.Basic Qualifications:- Experience performing Software Development and writing in software languages such as: C, C++, Python- Demonstrated experience developing, testing and debugging code at the operating system level (kernel development experience is desired)- Demonstrated experience in tool development and operating system architecture of the Windows platformExperience using Visual Studio IDE, Windows SDK, and Windows DDK, WInDBG or equivalent - Demonstrated understanding of network protocols and data flows- Active TS clearance with SCI eligibility; US citizenship is requiredDesired Skills:- Experience with writing effective Windows Kernel-level code and extensions (such as device drivers for networking, storage, audio, video, etc.) - Software development experience including design, implementation, testing, analysis and debugging supporting CNO/CNE.- Experience in vulnerability research and applying various analysis techniques- Experience in reverse engineering in various architectures (i.e. x86, ARM)- Demonstrated in-depth understanding of low level operating systems development and API(s)- Experience with writing effective OS level code and extensions (such as device drivers for networking, storage, audio, video, etc.)- Demonstrated experience performing Software Configuration Management- Demonstrated experience writing unit test when developing new software and fixing bugs#LMSpaceSoftwareEng #SpaceNSS #LMSpaceCyberEng #SpaceCYBProgramsSecurity Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.Clearance Level: TS/SCIOther Important Information You Should KnowExpression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.Schedule for this Position: Standard Monday to Friday 40 hour work weekLockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.Join us at Lockheed Martin, where your mission is ours. Our customers tackle the hardest missions. Those that demand extraordinary amounts of courage, resilience and precision. They’re dangerous. Critical. Sometimes they even provide an opportunity to change the world and save lives. Those are the missions we care about.As a leading technology innovation company, Lockheed Martin’s vast team works with partners around the world to bring proven performance to our customers’ toughest challenges. Lockheed Martin has employees based in many states throughout the U.S., and Internationally, with business locations in many nations and territories.Experience Level: Experienced ProfessionalBusiness Unit: SPACERelocation Available: PossibleCareer Area: Software EngineeringType: Full-TimeShift: First