Build and operate backend systems that ingest, process, store, and serve massive literature and user data. Develop data ingestion pipelines, optimize full-text search, handle PDF processing at scale, deploy services on AWS, and expose reliable REST APIs while ensuring data quality, deduplication, and consistency.

Build and maintain full-stack features using React and TypeScript across web, extensions, mobile (React Native) and desktop (Electron). Own substantial code areas, ship polished UIs from Figma, implement backend services, write frontend and backend tests (Playwright/Jest), and keep CI/CD and production services reliable at scale.