Rubuta ci gaba don wannan sakin layi - Yamamoto ta fara aikinta a 1990 a matsayin mai ba da rahoto ga Asahi Newstar, tashar talabijin ta tauraron dan adam na TV Asahi, daga baya ta zama 'yar jaridar bidiyo da kuma darektan shirye-shiryen labarai da shirye-shiryen labarai. Ta bar tashar a cikin 1995 don shiga Japan Press, ƙungiyar kafofin watsa labarai mai zaman kanta da ke Tokyo, wanda ke ɗaukar labarai da samar da shirye-shiryen bidiyo don watsa shirye-shiryen TV da mujallu da aka mai da hankali kan Gabas ta Tsakiya da Kudu maso Yammacin Asiya. An san shi da yin amfani da kyamarorin bidiyo na hannu da kuma yin gyare-gyaren nata, Yamamoto ya yi aiki a matsayin wakilin Japan Press a yankuna masu mahimmanci kamar Kosovo, Bosnia, Chechnya, Indonesia, Afghanistan a 2001, Iraki a 2003 da Uganda. Ta ba da rahoto game da murkushe matan Afghanistan a Kabul kuma ta yi hira da 'yan Taliban a Afghanistan. Ta yi aiki a matsayin wakilin musamman na Nippon TV a Iraki. Ta tsira daga harin harin tanki na kawance a kan Palestine Hotel a Bagadaza a ranar 3 ga Afrilu 2003 inda aka kashe 'yan jarida biyu daga "Reuters" da mai watsa shirye-shiryen Mutanen Espanya. Yamamoto ya canza zuwa aiki a matsayin mai gabatar da labarai don shirin labarai na Nippon TV a cikin 2003 da 2004, yana karɓar lambar yabo ta Vaughn-Uyeda Memorial Prize don rahoton da ta gabata game da yaƙin Iraki. Ta kuma kasance mai koyarwa ta musamman a makarantar aikin jarida ta Jami'ar Waseda da kuma alma mater, Jami'ar Tsuru. Karatun nata ya shafi tasirin yaƙi a kan talakawa da kuma rawar aikin jarida a lokacin yaƙi. Bayan Girgizar Kasa Mai Girma a Gabashin Japan
a ranar 11 ga Maris, 2011, Yamamoto ya ziyarci yankunan da abin ya shafa don yin rikodin lalacewar da aka samu. A watan Nuwambar 2011, ta fara aiki a matsayin mai ba da shawara mai zaman kanta ga Government Revitalization Unit tare da alhakin rage kashe kuɗi mara amfani a cikin gwamnatin Japan. Yamamoto tana kan aiki a Siriya don Nippon TV don rufe yakin basasa da ke gudana da kuma tasirin da ya yi a kan fararen hula na Siriya lokacin da aka kashe ta.