I architect robust, scalable databases for Python applications and integrate them using ORMs such as SQLAlchemy, Django ORM, or Tortoise ORM. I design clean relational structures, define schema migrations, create indexes, and write optimized queries tailored for high-performance workloads. My implementations include transaction-safe operations, connection pooling, caching strategies, and data validation layers to ensure reliability and consistency. I also provide query profiling, performance tuning, and environment-specific configurations to support production-grade systems that require stability, efficiency, and long-term maintainability.