Robotic Process Automation may be a process to exchange the human effort by bots to try to repetitive and mundane tasks. The advantages of this are increased efficiency, accuracy, and better ROI. It also frees the human resources to be used for better and more productive jobs.
The major prominent company in RPA as of now are:
Most of the IT companies are within the process of implementing RPA using product of either of those companies, with first three being the market leaders as of now.
There are tons of job opportunities in RPA, both within the development and governance of bots. It is just liked any other technology upgrade that happens from time to time. Learning it is not difficult.
I hope it helps and enjoy RPA. It is fun.