During his career he has been a member of numerous bands such as Santa Sabina,[1] La Barranca[2] San Pascualito Rey and Cuca.

In 2010 he released a live (at Mexico's Cineteca Nacional) cd of music for Dziga Vertov's 'Hombre de la Cámara'.

2013 saw the release of the 'iNFiNiTO' app (a never-the-same-twice album) with Mexico's top jazz singer Iraida Noriega.

Otaola joined Santa Sabina as a replacement for their original guitarist Pablo Valero in 1995.

During his time with the band he contributed to the following albums:[1] In 1999, while still working with Santa Sabina, Alex Otaola joined La Barranca.