Django is designed to be easy to pick up for anyone with prior experience in writing Python code. This means that you don’t necessarily need to hire Django developers specifically – if you’re working in Django any good Python developer should be able to pick it up.
That said, there will always be some sort of learning curve. If time to market is paramount, you might want to hire Python developers with prior Django experience – or go one step further and outsource to a specialist Django development company.
This helps you hit the ground running and max out on the acceleration potential Django offers.