Mylene Paat debut as a rookie of Adamson Women's Volleyball team on the year 2013-2014 wherein the UAAP Season 76 is being held.

It is a good start for her in the UAAP as their team defeated the Lady Tamaraws of the Far Eastern University in the Fourth-seed play-offs.

Due to the Lady Spikers of De La Salle University sweeping all the games in the preliminary round, they were given 1 of the 2 tickets into the finals.

It the final elimination rankings, the Lady Falcons was trailing by 1 win against UST and FEU who settled for the fourth-place play-offs.

They then played against the Petron Blaze Spikers in the semi-finals round but the team fells short making them settle for the 3rd place.

On the first day of the month of May 2017, Mylene alongside teammate Janine Marciano represented Cignal on the 2017 PSL Beach Volleyball Challenge Cup.

With the help of Mylene and the other seniors of the San Marcelino squad, they managed to finish 5th in the standings, a spot away from their final four contention.

A day later, the national head coach of the team revealed the Top 14 players who will banner the country at the 2018 Asian Women's Club Volleyball Championship.