C441 pilot reported encountering wake turbulence on arrival into TPA in trail of an air carrier that resulted in an upset and loss of 1000 ft. of altitude.

Narrative

On the MATTY4 Arrival at 5;000 ft. after crossing ROOKR. Aircraft Y was on the same arrival. I believe that the other aircraft crossed over my aircraft at 9;000 ft. and was cleared to descend to 5;000 in front of my aircraft. In my opinion Aircraft Y was 3 - 8 miles ahead when it happened. While on the arrival I experienced severe wake turbulence followed by an abrupt uncommanded bank to the right in excess of 60 degrees and a sudden pitch down of approximately 15 - 20 degrees. Autopilot had to be disengaged in order to initiate recovery from the upset condition. The aircraft required nearly 1;000 ft. to recover and stabilize. Upon recovery I contacted ATC and stated what happened followed by the typical question of was anyone injured. No one was injured during the occurrence. I had to ask the controller what altitude and heading would they like me to maintain because they offered very little guidance in the moments following the recovery. I was told to maintain 4;000 and present heading which I [was] able to.I do not believe that ATC gave me a warning of possible wake turbulence but I could be mistaken. This situation could have been avoided it the controller would have given me a descent lower than that of Aircraft Y or a vector on the arrival that would have taken me outside the path of the other aircraft. In my opinion if I had not already had my hands on the controls before I encountered the wake turbulence I believe that with the delay of reaching for the controls the aircraft would have rolled into an inverted condition and been unrecoverable at that altitude.