Senior Security Engineer, Infrastructure Security

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 Security based in the United States. We are seeking an experienced Infrastructure Security Engineer to strengthen and scale the security of a complex, cloud-native technology environment. In this role, you will protect critical infrastructure spanning cloud platforms, Kubernetes, networking, identity systems, and development pipelines. You will design and implement security solutions, lead threat investigations, and build intelligent automation to improve security operations and resilience. A key part of your mission will involve developing and maintaining AI-powered security agents that automate architecture reviews, investigations, and threat detection. Working closely with engineering, application security, and incident response teams, you will promote secure-by-design practices and least-privilege access across the organization. This is an opportunity to combine deep technical expertise, innovative security engineering, and AI-driven automation within a collaborative, remote-first environment.