Some food for thought:
You usually need to rent your internet connection, then rent the room on whatever cloud hosting service you prefer, then pay for the licensed copy of whatever version of Windows you want to run in the cloud, then either spend time installing Windows at the cloud host or pay to have them do it for you. Then you need to get licensed copies of any software you want to use on the cloud computer and spend time uploading & installing & configuring these.
If you want to use a non-Server edition of Windows in combination with the RDP protocol (the most commonly used protocol)...you have the problem of only one person being able to connect to this cloud PC at any given moment (the last person that logs in automatically kicks out the previously logged in user). Server editions of Windows allow more than one RDP connections simultaneously. Be sure to have this part also covered with sufficient (extra) licenses from Microsoft.
And even if you did all that, it is still very likely you'll need to run specific collaboration software to allow more than one person to work on the same file(s) at the same time. Don't expect collaboration tools for anything else than Office documents to be cheap. Tools such as Atlassian's Confluence
might be a good start for you.
My personal experiences with working on cloud-based PCs through Paraguayan ISP's aren't stellar. To have a better experience, make sure your internet connection has a very high upload speed, else your workflow is (significantly) slower than you would expect. Standard internet connections with high download limits are cheap, because these usually don't allow for fast uploads. ISP's usually do offer connections with high upload speeds, but at (much) higher cost.
Running software like the Interviewer tool you mention locally is a lot less (technical & financial) hassle. Especially if this whole collaboration thing you suggest is not used that often. Fast, Good, Cheap...choose two and hope those two are delivered as promised all the time (which isn't a given, I'm afraid).