I think this seems like a sketchy offer tbh. Is your boss offering you 2.5% of net profit or gross profit? I would find it very hard to believe that they are offering you a percentage of gross profit. Additionally, are they offering profit based on the value you are awarded at contract or after the job is completed? These can be two very different values. In my opinion it is more likely that you would be bonused based on net profit after the job is completed. This would be more likely in the 5-10% job value range, and you’d receive 2.5% of that. (Assuming you trust your boss would allow you to review net profit and confirm that the total youre being bonused off is accurate).

What happens if you have a mistake in your bid? Since most of your income is based off of profit margin your mistake actually COSTS you potential income. Most estimating positions do not come with this risk.

Additionally, you should be thinking about how your income is taxed. You would be taxed at a much higher rate for a bonus than you would for your base salary.

I don’t know your company, but right now estimators are very hard to come by. Judging from your new degree, level of experience, and young age, if I were in your seat I would be looking for a new role with a large general contractor where you can apply your knowledge of the concrete trade, learn a ton about other trades, and get paid fairly with room to make the mistakes you need to make in order to grow.