Oversee the full platform architecture: multi-tenant structure, white-label components, observability tooling, IaC, SLO definitions, and long-term reliability. Convert LLM and agent innovations into production-ready capabilities: retrieval pipelines, workflow agents, evaluation suites, caching layers, and robust safety scaffolding. Architect secure, compliant data pipelines (wearables → processing → insights) using privacy-by-design principles. Support engineering teams with architecture reviews, create diagrams/ADRs, and guide production hardening.