Principal Windows Internals Engineer (Cortex)

Our Mission At Palo Alto Networks®, we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology and bold thinking. Here, everyone has a voice, and every idea counts. If you’re ready to do the most meaningful work of your career alongside people who are just as passionate as you are, you’re in the right place. Who We Are In order to be the cybersecurity partner of choice, we must trailblaze the path and shape the future of our industry. This is something our employees work at each day and is defined by our values: Disruption, Collaboration, Execution, Integrity, and Inclusion. We weave AI into the fabric of everything we do and use it to augment the impact every individual can have. If you are passionate about solving real-world problems and ideating beside the best and the brightest, we invite you to join us! We believe collaboration thrives in person. That’s why most of our teams work from the office full time, with flexibility when it’s needed. This model supports real-time problem-solving, stronger relationships, and the kind of precision that drives great outcomes. Job Summary Job Summary We are seeking a Windows Internals Engineer for our Tel Aviv R&D center. In this role, you will be a key member of the team that designs and develops the low-level Windows components for our revolutionary Cortex XDR endpoint security product, directly contributing to our mission of protecting our digital way of life from advanced cyberattacks. Key Responsibilities Contribute to the research and development of Windows drivers, services, and other system-level components. Challenge the status quo by finding and implementing innovative solutions to counter sophisticated cyberattacks. Proactively collaborate and exchange information with engineers, security researchers, and product managers to lead projects and initiatives. Design, develop, and debug complex, high-performance, multi-threaded code in C++. Conduct in-depth analysis of system internals and focus on the details to produce robust, high-quality security features. Apply learning from security research and reverse engineering to simplify complex problems and develop practical solutions. Qualifications Preferred Qualifications 8+ years of experience in software development 3+ years of experience with system programming for any major OS (Windows/Linux/Android/Mac) Proven experience with system programming for any major OS (Windows, Linux, Android, Mac). Deep understanding of operating system internals and concepts. Modern C++ development Experience with one or more of the following skills/technologies – User–mode internals, Windows security model, PE format, hooking, injection, etc., x86 / x64 assembly, Security technologies (ASLR, DEP, etc.), Reverse engineering with IDA Pro, Python Contributions to open source projects or a complex hobby project Bachelor's degree or equivalent military experience required Our Commitment We’re trailblazers that dream big, take risks, and challenge cybersecurity’s status quo. It’s simple: we can’t accomplish our mission without diverse teams innovating, together. We are committed to providing reasonable accommodations for all qualified individuals with a disability. If you require assistance or accommodation due to a disability or special need, please contact us at accommodations@paloaltonetworks.com. Palo Alto Networks is an equal opportunity employer. We celebrate diversity in our workplace, and all qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or other legally protected characteristics. All your information will be kept confidential according to EEO guidelines. Is role eligible for Immigration Sponsorship? No. Please note that we will not sponsor applicants for work visas for this position.