Career
He became the governor-general of the Philippines appointed from July 1754 to May 31, 1759. Arandía was a native of Ceuta with lineage from the families of Biscay. In 1754, he arrived in Manila as the new governor-general replacing the 1st Marquis of Brindisi.
During his governorship, he reformed the army and expelled infidel Chinese and built the Alcaicería (market) of San Fernando in Manila.
He died in office and was replaced by the Bishop of Cebú Miguel Lino de Ezpelata in 1759.