Designs and improves security controls across endpoints, servers, identity systems, cloud services, SaaS applications, networks, and data flows. The role includes hardening, vulnerability remediation, access controls, monitoring, automation, security assessments, incident investigation, and architectural improvements. The engineer partners across infrastructure, engineering, identity, legal, and security teams to reduce attack surface and strengthen durable security practices. Applicants need at least five years of hands-on security experience and an active TS/SCI clearance or eligibility to obtain one.