Okay, let's create a responsive website for an engineering company with the sections you requested and an engineering aesthetic.

We'll structure it as a single-page application for simplicity, where clicking navigation links reveals different content sections.

This sets up the basic structure, styling, and interactivity. You can view the website by opening the index.html file. Use the navigation links to switch between sections, and click the icons in the Marketplace to see the placeholder product lists. The design uses a blue and grey color scheme often associated with engineering and technology, along with relevant Font Awesome icons. It's also responsive and should adapt to different screen sizes.