Animator.
His Twitter account is:
@monsuun.
"Originating from AIC, where his peers included Yoshimichi Kameda and Shinichi Kurita. He drew analogically for the first two years of his career and then switched to digital. Yasushi Muraki calls him a follower of Souichirou Matsuda, whom Fujii is influenced by." - quoted from his AniList page.