Senior Software Engineer, C++ (Endpoint State & Control)

About the Role We are hiring a Senior C++ Software Engineer to join our growing Endpoint State and Control team, focused on defining and enforcing endpoint behavior across a managed environment. We build the foundational controls that let IT teams define, enforce, and maintain a strong security posture across every endpoint they manage. Trusted by over 40,000 customers globally, your work will directly power the tools IT teams and MSPs (managed service providers) rely on to monitor, manage, and secure endpoints at scale. You will collaborate in a fast-paced, agile environment that emphasizes rapid iteration and customer-driven outcomes, working alongside other Software Engineers, Product Designers, and Product Managers. You are responsible for implementing design patterns and working on enterprise level software challenges, in a startup environment. Enabling firsthand product impact, while building software of scale that runs on millions and millions of endpoints. If you are a Senior Software Engineer, with application-level C++ expertise, who thrives on solving complex technical challenges and is passionate about building high-quality, reliable software for real-world impact, this is the role for you! What You’ll be Doing - C++ Software Development: design and implement scalable features, enhance platform performance, and support critical functionality across our core product suite. Use your expertise to contribute to the development of large-scale software applications. - Committing Code and Shipping Products: be one of our most trusted engineers committing code. - Other Duties as needed About You - Bachelor’s Degree in Computer Science, Engineering, Information Technology, or related technical field - 7+ years of C++ development experience, with proficiency in C++ 14 or newer - 5+ years of Windows systems-level C++ engineering - Strong familiarity with windows kernel drivers - Experience designing or maintaining a Windows kernel-mode driver or service that runs on production endpoints - Comfortable designing from first principles, this is a net-new system with no existing internal architecture to inherit - Drive technical design: write architecture documents, define subsystem contracts, work cross-functionally with server and UI engineers - Comfortable working on problems with sparse documentation and undefined requirements - Comfortable experimenting with AI tools in development workflow PREFERRED: - WHQL driver certification experience (strongly preferred) - Driver development background (minifilter, WFP) - macOS systems experience: Apple Endpoint Security framework - Linux systems experience: eBPF or kernel module development About Us NinjaOne unifies IT to simplify work for nearly 40,000 customers in 140+ countries. ​ The NinjaOne Unified IT Operations Platform delivers endpoint management, autonomous patching, backup, and remote access in a single console to improve efficiency, increase resilience, and reduce spend. By automating IT and managing all endpoints, organizations give employees a great technology experience at work. ​ NinjaOne is obsessed with customer success and has retained a 98% customer satisfaction score for more than 5 years. We hire the best software engineers, but experience in our stack can’t hurt: NinjaOne is built on Java, Kotlin, C++, Golang and Postgres, supporting millions of user endpoints and running as a scalable cloud service in AWS. Knowing large-scale datastore bottlenecks, asynchronous application design and client-server architecture will help you. What You’ll Love We are a collaborative, kind, and curious community. We honor your flexibility needs with full-time work that is hybrid remote. We have you covered with our comprehensive benefits package, which includes medical, dental, and vision insurance. We help you prepare for your financial future with our 401(k) plan. We prioritize your work-life balance with our unlimited PTO. We reward your work with opportunity for growth and adv…