He was playing with Al-Shaab and after merging Al-Sharjah, and Al-Shaab clubs under the name Al-Sharjah he was joined to Al-Sharjah. On 20 September 2018, Ahmed Saif made his professional debut for Al-Sharjah against Shabab Al-Ahli in the Pro League, replacing Al Hassan Saleh. On 17 February 2019, Ahmed Saif was injured during the Al-Sharjah and Al-Nasr match in the UAE Pro League and his team was forced to complete the match with 10 players after the three changes were exhausted.
