[15] On 30 December 2020, in the 2020–21 Big Bash League season, he took his first five-wicket haul in T20 cricket, with 5 for 15 for the Brisbane Heat against the Hobart Hurricanes.
[16] In February 2021, Mujeeb was bought by the Sunrisers Hyderabad in the IPL auction ahead of the 2021 Indian Premier League.
[18] As a result of this performance, he was named in Afghanistan's One Day International (ODI) squad in December 2017 for their series against Ireland.
[28] On 15 March 2018 in the first match of the Super Sixes at the World Cup Qualifier, he took 3 wickets for 33 runs against the West Indies.
He also took a catch off the bowling of Rashid Khan as Afghanistan beat them by 3 wickets, with Mujeeb earning his third ODI man of the match award.
[30] Afghanistan chased the target of 205 losing only 3 wickets with ten overs to spare and clinched its first ICC Cricket World Cup Qualifier title.
[31][32][33] He was also the joint-leading wicket-taker in the tournament, along with fellow wrist spinner, Rashid Khan and Safyaan Sharif of Scotland with 17 wickets each.
[34] Following the conclusion of the Cricket World Cup Qualifier tournament, the ICC named Mujeeb as the rising star of Afghanistan's squad.
[45] In Afghanistan's first match of the tournament, against Scotland, Mujeeb took his first five-wicket haul in T20I cricket, with five wickets for twenty runs.