If you can't find the engineer you need in your area you have a few options. Let the engineer work remotely, make the bounty high enough to attract talent that

If you can't find the engineer you need in your area you have a few options. Let the engineer work remotely, make the bounty high enough to attract talent that wouldn't have considered it at market rates or train one of your own engineers to be able to handle the problems you're looking to solve.