
The Microsoft Windows Security team seeks Senior and Principal Security Engineers to protect operating systems used by billions globally. The role focuses on offensive security, requiring hands-on experience with C/C++ code, penetration testing, and vulnerability research. Key responsibilities include conducting security design and code reviews, developing fuzzing tools, identifying novel attack vectors, and collaborating with product teams to implement scalable defenses. This position appeals to candidates passionate about cybersecurity who want to work on technically demanding challenges that directly impact customer safety. The team fosters a culture of innovation through interaction with the external security community and offers opportunities to shape the security architecture of future Windows versions.






















