Senior Low Level Engineer (AI Native)

About the company

Neo is an AI security control platform that provides real-time inventory, risk intelligence, behavioral attribution, and granular policy control across AI agents, applications, browsers, identities, and traditional software.

About this role

<p><strong>We are seeking a senior low-level engineer to join our Sensor team.</strong></p> <p>&nbsp;We prioritize solid fundamentals, technical curiosity, and proficiency in AI-assisted development.</p> <p>In this role, you will own major development projects and take the lead on architecting solutions across our core feature set.&nbsp;</p> <p>You will work extensively with low-level OS subsystems - including file systems, memory, process management, and networking - designing features with cross-platform portability.</p> <p>&nbsp;We expect you to drive projects with a focus on high-performance execution and efficiency, maintaining rigorous standards for code quality, design integrity, and comprehensive testing.</p> <p><strong>What You'll Do</strong></p> <ul> <li>Drive end-to-end feature ownership: Lead features in critical components of our sensor for macOS, Windows, and Linux from initial architectural design through deployment, actively presenting progress and technical outcomes.</li> <li>Tackle large-scale stability and performance optimization: Utilize agentic coding tools to navigate unfamiliar OS APIs, validating system behavior against documentation, test suites, and actual hardware.</li> <li>Collaborate to deliver high-impact security solutions: Partner across teams to build internal tooling, test infrastructure, and CI/CD pipelines that enhance codebase maintainability and developer velocity.</li> </ul> <p><strong>Tech You'll Work With</strong></p> <ul> <li>Systems Programming: Low-level development in Rust, targeting Windows, macOS, and Linux (memory, processes, files, and OS internals).</li> <li>AI-Assisted Development: You will lean heavily on agentic coding tools as a core part of the development lifecycle, not as a bonus.</li> <li>Full-Stack Systems: You will range across OS internals, AI tooling, CI/CD pipelines, and reverse engineering.</li> </ul> <p><strong>What You'll Bring</strong></p> <ul> <li>System Fundamentals &amp; OS Internals: In-depth knowledge of OS internals (memory, processes, filesystems).</li> <li>Strong Debugging &amp; Troubleshooting Skills: Proven execution in deploying functional software with the discipline to verify low-level system behavior.</li> <li>Agentic Fluency: Hands-on mastery of agentic coding workflows (context management, prompt steering, and code verification) integrated directly into systems programming.</li> <li>Team Leadership &amp; Collaboration: Communicate effectively, mentor peers, and drive team outcomes in a collaborative, cross-functional environment.</li> </ul> <p><strong>Bonus:</strong></p> <ul> <li>Deep OS Internals: Advanced understanding of core system architecture and sub-system mechanics.</li> <li>Performance Engineering: Demonstrated ability to architect highly scalable, lightweight, and performant systems.</li> <li>Security-Oriented Development: Experience or familiarity with Windows security concepts, macOS endpoint security framework.</li> </ul>