Microsoft's M365 Security Engineering team is seeking a Senior Software Engineer to protect Microsoft services against cyberattacks. The role involves working with large-scale software systems, security analysis, big data, and machine learning to analyze billions of events and terabytes of data generated by Microsoft products and services. The team values diversity and deep collaboration, focusing on maintaining critical security components across Microsoft's infrastructure. This position offers the opportunity to work with cutting-edge security technologies, cloud platforms, and distributed computing systems while being part of a team that directly impacts the security of Microsoft's global services. The role requires expertise in cloud services, security principles, and strong programming skills, with opportunities for growth and impact in cybersecurity.