Staff Security Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Security Engineer based in the United States. This is an opportunity to take ownership of security across an innovative AI-powered platform where autonomous agents perform complex tasks involving code, research, and business operations. As Staff Security Engineer, you will strengthen application security, cloud infrastructure, and software delivery practices while addressing emerging threats specific to AI-driven systems. You will tackle challenges such as prompt injection, data exfiltration, unauthorized cross-session access, and vulnerabilities in AI-generated code. Working closely with ITOps, Platform, and Product Engineering teams, you will embed automated security controls into existing development workflows without compromising delivery speed. This is a highly hands-on role combining offensive security, engineering, threat detection, and incident response. You will have significant autonomy to identify risks, drive solutions, and shape security practices in a fast-moving, remote-first environment.