Built and maintained major parts of a production real estate technology platform covering property management, leads, referrals, tours, analytics, reporting, and third-party integrations. I owned substantial backend and frontend functionality using NestJS, PostgreSQL, Prisma, Redis, React, Redux Toolkit, AWS, and Socket.io. My work included high-volume analytics, database optimization, reporting pipelines, timezone-aware scheduling, complex forms, multi-tenant functionality, and integrations with external real estate and productivity platforms.