Hiring a Hexagonal Architecture developer provides several advantages. Firstly, it promotes the separation of concerns principle. Developers can isolate the business logic from the outside world (like databases, UIs, etc.), resulting in a more organized, maintainable, and understandable codebase. This allows easier modifications and extensions in the future.
Secondly, it facilitates automated testing. With Hexagonal Architecture, you can easily create automated tests for the business logic without needing to involve the external systems, thus enhancing the reliability of your application.
Thirdly, Hexagonal Architecture supports portability and scalability. Developers can switch the technology used in the external systems without affecting the business logic. This flexibility allows the application to rapidly adapt to changes in technology or scale up as the business grows.
Fourthly, it increases productivity. By decoupling the business logic from external systems, developers can work on business logic independently, leading to faster development cycles.
Lastly, it reduces long-term costs. Although it might require more resources upfront, the maintainability, scalability, and flexibility offered by Hexagonal Architecture can significantly reduce the cost of changes and enhancements over the long term.