Nubank

Nubank was founded in 2013 in São Paulo by David Vélez, Cristina Junqueira and Edward Wible. It started with a no-fee credit card run entirely from a mobile app.

It has grown into one of the largest digital banks in the world - accounts, credit, investments and insurance - operating in Brazil, Mexico and Colombia. Its holding company, Nu Holdings, has been listed on the NYSE since 2021.

Nubank is famous among engineers for building its back end in Clojure on the Datomic database; in 2020 it bought Cognitect, the company behind both. Its teams work from São Paulo and hubs across Latin America, Europe and the United States.