In 2015, Neita finished fourth in the 100 metres final at the European Junior Championships, in 11.69 seconds. In 2016, she finished second with 11.24 seconds (having ran a personal best of 11.23 in the semi-finals) in the 100 metres at the British Championships, earning Olympic selection. A week later at the 2016 European Championships, she won a silver medal in the 4 x 100 metres relay. On 22 July 2016, Neita and her teammates Asha Philip, Desiree Henry and Dina Asher-Smith broke the British record in the 4 x 100 metres, with 41.81 seconds.