Callier studied image, sound and editing at RITCS between 1990 and 1993.

After his studies he worked as a sound engineer for the public Flemish broadcaster VRT.

[1] In 1995 he co-founded Hoover (later Hooverphonic), where he is active as a musician, as well as a composer and producer.

[4] Alex Callier was in favour of the now rejected ACTA treaty.

He defended this proposal to restrict the internet, among other things, in the European Parliament.