David discussed his experience and preferences in both back-end and front-end development. He has transitioned to using Node.js and MongoDB for back-end development and is familiar with serverless approaches and Amazon Web Services. In terms of front-end development, he is up-to-date with Vue 3 and React, modern JavaScript, and state management tools like Pinea with Vue 3 or Zustand with React. While he is proficient at CSS3, he mentioned that he is not a designer. David also mentioned that he enjoys working on projects that he believes in, particularly ones that involve social media, mapping, and creative uses of technology. In terms of career aspirations, he expressed a desire to move into a technical architect role, where he could mentor, do demos, and act as a tech evangelist.