Have you ever had to fix architectural flaws through refactoring?

Yes, I have had to fix architectural flaws through refactoring. For example, when there was high cohesion between modules in a project, which made maintenance and extension of functionality more difficult, I would isolate separate components with clearly defined interfaces. This improved modularity and made testing easier.

Another example is eliminating code duplication and simplifying complex functions, which increased readability and reduced the likelihood of errors. Refactoring also involved implementing design patterns to enhance architectural flexibility.

Ultimately, these changes contributed to improved code quality and accelerated the development of new features.