Nsemba is of Cameroonian heritage, both his parents emigrated to Wigan from Cameroon prior to his birth.

[2] In 2022 Nsemba made his Super League début for Wigan against Hull Kingston Rovers.

In 2023, Nsemba came off the bench to score his first career try in an 18–14 victory against Leeds Rhinos in the 6th round of the Challenge Cup.

[4] On 8 June 2024, Nsemba played in Wigan's 2024 Challenge Cup final victory over Warrington Wolves.

[7] On 12 October 2024, Nsemba played in Wigan's 9-2 2024 Super League grand final victory over Hull Kingston Rovers.