In January 2016, Mengolo joined Levski Sofia in Bulgaria but left five months later.[1][3] He was a free agent from July 2016 to January 2017 when he signed for Nemzeti Bajnokság I side Debrecen.[3] He left the team at the end of the 2017/18 season.
On 28 September 2018, Mengolo signed for Romanian club Astra Giurgiu.[4]
In December 2018, Mengolo signed for Maltese Premier League leaders, Gzira United FC. In February 2020, Mengolo then moved to Al-Salt in Jordan.[5]
International career
Mengolo has won two caps for the Cameroon national team, both caps came in June 2015.[1]