Mavuta was the leading wicket-taker in the 2017–18 Logan Cup for Rising Stars, with 27 dismissals in seven matches.[7] He was also the leading wicket-taker in the 2017–18 Pro50 Championship for the Rising Stars, with fifteen dismissals in nine matches.[8] This included taking eight wickets for 38 runs in the final of the tournament, leading the Rising Stars to their first title.[9][10]
In June 2018, Mavuta was named in a Board XI team for warm-up fixtures ahead of the 2018 Zimbabwe Tri-Nation Series.[17] Later the same month, he was named in a 22-man preliminary Twenty20 International (T20I) squad for the tri-nation series.[18] He made his T20I debut for Zimbabwe against Australia on 6 July 2018.[19]
In September 2018, Mavuta was named in Zimbabwe's squad for the 2018 Africa T20 Cup tournament.[20] The same month he was once again named in Zimbabwe's ODI squad, this time for the series against South Africa.[21] He made his ODI debut for Zimbabwe against South Africa on 30 September 2018.[22] The same month, he was also named in Zimbabwe's Test squad for their series against Bangladesh.[21] He made his Test debut for Zimbabwe against Bangladesh on 3 November 2018 and took 4 wickets for only 21 runs in the second winnings of his debut.[23]
In December 2023, he was suspended by Zimbabwe Cricket after failing a drugs test.[24] On 25 January 2024, Zimbabwe Cricket announced that Mavuta as well as teammate Wesley Madhevere had been suspended for four months, as well as fined 50% of their salaries for three months, effective from January 2024.[25]