Alexa was signed by WWE in 2013 and finally made her televised debut on the May 8, 2014 episode of NXT, defeating Alicia Fox. After competing as a babyface to start her WWE career, Alexa began turning into a villainess on the April 30, 2015 episode of NXT, doing so in a backstage segment with Carmella. After confronting Carmella, Alexa was seen with reigning NXT Tag Team Champions Blake and Murphy, who were feuding with Carmella's associates, Enzo Amore and Big Cass. Two weeks later on the May 13 episode of NXT, Alexa defeated Carmella in a grudge match, with the win coming after Blake and Murphy distracted Carmella.
At NXT Takeover: Unstoppable on May 20, Alexa completed her villainous turn during Blake and Murphy's NXT Tag Team Championship defense against Enzo and Big Cass. During the match, the evil Alexa attacked Carmella at ringside and did the same to Enzo to allow the tag champs to retain. After the match, Alexa left with Blake and Murphy to further cement herself as a heel.