Simon Mbilinyi alikuwa mbunge katika jimbo la Peramiho nchini Tanzania kupitia Chama cha Mapinduzi, pia alikuwa balozi wa Tanzania nchini Ubelgiji na Luxemburg kuanzia mwaka 1985 hadi 1989 na aliwahi kuhudumu kama waziri wa fedha kuanzia mwaka 1995 hadi 1996. Member of Parliament CV. Parliament of Tanzania (2010). Jalada kutoka ya awali juu ya 2 January 2014. Iliwekwa mnamo 2 January 2014.