[2][3] She developed her writing skills in high school and decided to take up journalism at University of Santo Tomas (UST) where she graduated.
[4][5][6] She initially joined I-Witness in 2006 when Vicky Morales took a leave of absence and she was a temporary replacement but eventually, she became a regular of the show.
[8] In I-Witness, she was able to produce different kinds of documentary including topics about poverty, which was questioned in 2012 when Aguinaldo and her co-hosts were at the "docufest" in Baguio.
[4] In 2014, Aguinaldo together with Arnold Clavio were awarded by USTv of University of Santo Tomas as the Outstanding Thomasian Media Personalities.
[10] In 2015, Aguinaldo together with Kara David, Howie Severino and Jay Taruc won as the Best Documentary Program Hosts for I-Witness during the 29th PMPC Star Awards for Television.