From my experience working in film editing - when I came into the studio each day I had to convert files from Avid to my Final Cut Pro system from each camera and get the files for each day to put together the episodes. I.e. Camera A, B, C - close ups, wide shots etc. I had to make sure that the audio/videos were synced and go through each file and assemble.
Sometimes I had to choose which shots to keep or throw if there were many takes and sometimes I had to "build" ones out of several if there were multiple takes with better parts than others! It was a fun job, not so demanding, but it would be based entirely on how long your show was, when the delivery date was for broadcast etc.
In other jobs I've had to add some effects in After Effects - on live footage and on animation - and then export for broadcast/assembly.
The role will start out Junior - as said above and the more experience you have, the more things you will get to do.