After graduating from university, Tsujimoto joined Capcom in April 1996.

[3] Tsujimoto was originally assigned as a planner of arcade games such as Battle Circuit and Tech Romancer.

Afterwards, he started working on console games where he helped plan online software.

One of these games was Monster Hunter (2004) where he was involved in online play planning and administration.

[5] In 2018, he was promoted to be a Managing Corporate Officer as well as the Head of Consumer Games Development Division 2 at Capcom.