Hi, welcome to the forum!
I wrote a thesis on RPA and there are a lot of studies on basic RPA usecases out there. However times are changing fast and basic RPA usecases have become just that - basic.
Finding a job on a portal kind of falls in that category too - I would recommend focussing on the intersection of RPA with some other interesting technology (ML, IOT, Chatbots, etc.). That’s where things get really interesting and it probably fits the engineering theme better too.
You might want to find inspiration by searching for studies regarding Intelligent Process Automation (IPA).
Hope this helps