He is best known as the former lead guitarist of the American indie rock band Real Estate, with whom he recorded three studio albums, and for his solo music project Ducktails.

[4] While studying in Massachusetts, Mondanile became involved in the local music scene, where he would book shows for his campus[5] and join a number of bands, including Predator Vision with future Real Estate drummer Etienne Pierre Duguay.

[3] After a stint in Berlin to work on his thesis[4] where he became acquainted with musicians such as James Ferraro, Spencer Clark and Steven Warwick, Mondanile became influenced by their method of quickly recording music on cassette and releasing it.

[6] Mondanile kept in touch with high school friends Martin Courtney and Alex Bleeker while each of them had moved away from Ridgewood for college, and would send each other music that they had been working on individually.

"[14] In January 2018, Mondanile released another statement in which he claimed he had been in therapy for two years prior to the public accusations and lamented the effects of the allegations on his personal and professional life.