Mengolo started his career in Cameroon with
Panthère du Ndé, before moving onto Tunisian football to sign for
Étoile du Sahel. He left the team at the end of the 2017/18 season. On 28 September 2018, Mengolo signed for Romanian club
Astra Giurgiu. In December 2018, Mengolo signed for Maltese Premier League leaders, Gzira United FC. In February 2020, Mengolo then moved to
Al-Salt in Jordan. ==International career==