Do you have a passion for innovation and building technologies that make large-scale clouds more reliable, efficient, and scalable? The RSCI Vector Security Team seeks a Senior Security Engineer to validate services, applications, and infrastructure meet the highest security standards. You'll ensure operational security for US ADC Remote Management and Administration networks, analyze infrastructure security, address issues, build automation, and respond to threats. Working with AWS's most advanced clouds supporting critical Intelligence and Defense workloads, you'll collaborate with service teams, mentor junior engineers, and be a security thought leader. The role requires TS/SCI clearance with polygraph and involves working at Amazon's new Northern Virginia headquarters, part of a $2.5B investment creating 25,000+ jobs. You'll join AWS Utility Computing, supporting critical services like S3 and EC2, while working in an inclusive culture that values work-life harmony and diverse experiences. The role offers mentorship, career growth opportunities, and the chance to shape the future of cloud security for government customers.