Yoda Response: I haven't had the opportunity to work with Flask or Django yet, but I have substantial experience with Express and Node.js for back-end development. For instance, in my Task Management WebApp project, I used Node.js and Express to build the server-side logic.

To ensure the back-end met the project requirements, I focused on creating RESTful APIs that handled CRUD operations efficiently. I implemented secure authentication and integrated Cloudinary for image uploads. By thoroughly testing the endpoints and using tools like Postman, I ensured that the back-end services were robust and met the application's needs. This experience has given me a solid understanding of back-end development, and I am confident that I can quickly learn and adapt to using Flask or Django if needed.