A youth academy graduate of
Plaza Colonia, Waller made his professional debut on 19 April 2014 in a 1–1 draw against
Rocha. He scored his first goal on 19 March 2017 in a 2–3 defeat against
Sud América. In February 2018, Waller joined
Nacional on a season long loan deal. However, he couldn't play any matches for the senior team due to injuries. On 13 August 2020,
Liga MX club
UNAM announced the signing of Waller on a season long loan deal with option to buy. In April 2021, UNAM decided not to activate his purchase option and announced his departure from the club. On 10 July 2021, Waller joined
Atlético San Luis on a two-year deal. ==International career==