Jinno remained at Yokohama FC after the retirement and has been working in the area of development for the club until 2009. After 2011, he worked for Gainare Tottori (2011), Avispa Fukuoka (2012–14) and AC Nagano Parceiro (2015–16). In June 2017, he signed with Nadeshiko League club NHK Spring Yokohama FC Seagulls and managed the club until the 2020 season.