This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Staff Security Engineer based in United States. This is a senior-level security architecture role with broad ownership across cloud infrastructure, applications, identity, networks, and data protection.You will serve as a key technical authority, shaping secure-by-default architectures and influencing how engineering teams design and operate systems.The role combines hands-on architecture with strategic leadership, threat modeling, governance, and security enablement.You will work closely with engineering, product, technology leadership, privacy, compliance, and security teams to embed security throughout the development lifecycle.A major focus will be building scalable security practices that enable teams rather than creating unnecessary delivery bottlenecks.You will also help protect sensitive health information while strengthening resilience against evolving threats in a highly regulated environment.This is an opportunity to establish durable architecture standards, mentor security professionals, and make a measurable organization-wide impact.