In the following season, Junaidi joined the-then SPL reigning champions Albirex Niigata (S), featuring in 3 games. He performed credibly, even scoring his first-ever professional goal against Tampines Rovers in a 2-2 draw. On the final day of the 2021 SPL season, Junaidi provided a brilliant cross for teammate Kiyoshiro Tsuboi to score his 4th goal of the game against Tanjong Pagar United, but the game ended 4-4, with Albirex falling short of reclaiming their SPL title.
Junaidi was an unused substitute in his final Singapore Premier League game for Albirex Niigata (S) in March 2022, against the then reigning champions, Lion City Sailors
In August 2022, Junaidi was reportedly involved in a riot near Orchard Towers. He was allegedly a secret society member. In August 2024, he was sentenced to two years and a month in jail and a fine of $800 on Sept 30 after he pleaded guilty to one count each of rioting and being a member of an unlawful society.[1][1]
