Chess.com Staff
Developer of Torch (https://www.chess.com/news/view/torch-chess-engine)
Author of the open source chess engine Ethereal and its commercial counterpart Ethereal NNUE (http://chess.grantnet.us/Ethereal/). Ethereal was at one point the 3rd strongest engine in the world.
Lichess Account: https://lichess.org/@/AndrewGrant