Senior Security Engineer, Infrastructure

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Security Engineer, Infrastructure based in the United States. We are seeking a hands-on Senior Security Engineer to strengthen the security, reliability, and operational resilience of cloud infrastructure supporting critical SaaS products and AI platforms. In this role, you will work across AWS, Kubernetes, and infrastructure-as-code environments, combining production operations with practical security engineering. You will investigate infrastructure issues, respond to production alerts, and implement improvements that reduce risk and make systems more reliable. Working closely with Infrastructure Security, Platform Engineering, AI, and other engineering teams, you will address vulnerabilities and misconfigurations at their source. This is an opportunity to contribute directly to the security of complex cloud and AI infrastructure in a collaborative, fast-moving engineering environment. The position is fully remote and available to candidates in selected U.S. states.