[5e] [Homebrew] Working on an Engineer Class

Link to Spreadsheet

In my standard array of 5 people I game with, two of us are frequently DMs. We noticed that there isn't really any other class other than Wizard that focuses on intelligence. In addition, so few classes are completely disconnected from magic. Therefore, we've spent the last month working on the Engineer class, an INT based non magical class.

We are looking for any feedback on what we have so far.