Wen Junjie was promoted to China League One side Hangzhou Greentown's first team squad in June 2017.
[2] On 18 April 2018, he made his debut for the club in a 3–2 away win against Kashiwa Reysol, coming on as a substitute for Pei Shuai in the 95th minute.
[3] After making his debut he would struggle to establish himself within the squad and was dropped to the reserves before being allowed to leave the club.
On 6 April 2021 he joined second tier football club Meizhou Hakka as a free agent.
[5] He would be a squad player of the team that gained promotion to the top tier after coming second within the division at the end of the 2021 China League One campaign.