HackBook protects critical infrastructure, industrial organizations, and government entities from cyber threats through network and asset visibility, threat detection, and actionable insights for OT and IoT environments. The Applied AI Engineer will build and deploy language-model-powered systems for national security applications, including dataset curation, model post-training, retrieval systems, evaluation frameworks, and production model serving. The role also involves integrating AI capabilities into operational workflows and collaborating with engineering and cross-functional partners across cloud and on-premises environments.