Senior Backend Engineer - Prompt Security (Node.js / TypeScript)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Backend Engineer - Prompt Security (Node.js / TypeScript) based in the United States. This role focuses on building scalable backend infrastructure for an AI security product designed to help organizations monitor AI assets, assess risks, and act on security insights. You will develop critical server-side applications and APIs while helping shape secure, reliable systems for emerging AI environments. The position combines backend engineering with cybersecurity, cloud infrastructure, data management, and distributed systems. You will work closely with frontend engineers and other technical teams while contributing to architecture and engineering best practices. The environment is fast-paced and highly iterative, with opportunities to solve complex problems and influence the evolution of AI security. Your work will directly support secure, compliant, and scalable adoption of AI technologies.