There isn't a lot of information on Shinji online though there is an interesting interview HERE.
The following amateur compilation of some of his work has been posted on YouTube and featured at Catsuka. His realistic animations outstrip most CG work around today and his cartoons are right up there with John K's work. By no means do I enjoy all the productions for which he has been involved, but his ability as an animator is astounding.
The clip contains elements from Samurai Champloo, FLCL, Hakkenden, Sci Fi Harry, Metropolis, Gosenzosama Banbanzai, Paranoia Agent, Nos voisins les Yamada, Tokyo Godfathers, Naruto, Detective Story et Kid's Story (Animatrix), Le voyage de Chihiro, Portable Airport, Patlabor, Akira, Perfect Blue, XXXHolic le film, Innocence, Ghiblies 2, Blue 6, Doraemon, Tenchi Muyo, Spriggan.