Nest JS enhances developer productivity in several ways. Firstly, it utilizes TypeScript, which provides static typing and advanced IDE support, enabling early error detection and better code quality. Secondly, Nest JS follows a modular architecture, promoting code reusability and separation of concerns, allowing developers to work on isolated modules independently. Thirdly, Nest JS provides built-in support for dependency injection, simplifying the management of dependencies and making code more testable and maintainable. Additionally, Nest JS offers a rich ecosystem of ready-to-use components and libraries, reducing the need to write code from scratch and speeding up development. Its intuitive syntax and clear documentation further contribute to developer productivity, enabling faster development cycles and efficient collaboration within development teams.