Alternative way to switch user log in type? UI example inside

So I'm currently designing an app that allows construction employees to clock in/out for their job. Users can also switch to another view of the app, a managerial view, which will allow them to manage jobs/employees etc. This accessibility is determined by the back-end through their log-in information.

I want to find a better way to be able to switch between "modes". Right now I have it at the bottom, but I think there is a better way to do this. Here is the example I have as of now.

As you can see towards the botton, "switch to foreman" will allow them to access a different version of the app with entirely different functionalities. Ideally I want this switch button to only show on the front page. The "Time card" tab is considered the homepage.

Part of me is considering in transforming this app to have a side hamburger menu in which will include all the tabs, profile picture, and switch account button. The only issue is the expected user persona for this application is novice. Not only that, but they will be using it on the field in the hot sun. So the simpler, the better.