José Agostinho Sequeira (born 7 June 1959), also known by his nom de guerre Somotxo Matar Mimiraka, is an East Timorese politician and former guerilla, and a member of the Fretilin political party.

[1] During the liberation struggle against Indonesia, he was a collaborator of the chief of staff of Falintil and Secretary of Region IV.

[2] After the resumption of Timorese independence in 2002, Sequeira was appointed as the first director of the Timorese Resistance Archive and Museum (Portuguese: Arquivo & Museu da Resistência Timorense, Tetum: Arkivu & Museu Rezisténsia Timorense (AMRT)).

[3] Following his return to East Timor in May 2006, he continued to work at the AMRT until 21 July 2006, when he was sworn in as Vice Minister of Interior in the II Constitutional Government.

[6][7] He later became president of the Falantil Veterans Foundation (Portuguese: Fundação dos Veteranos das Falintil (FVF)).