In 2020, Vilahamn was appointed as assistant coach for BK Häcken in the Swedish Premiership Allsvenskan where he helped the club to qualify for the Europa Conference League.

[4] In the fall of 2021, Vilahamn was appointed head coach of the women's side BK Häcken FF.

On 7 July 2023, Women's Super League club Tottenham Hotspur announced Vilahamn as their new head coach for 2023–24 season.

[5] Vilahamn left his former club BK Häcken FF at the top of the table of Swedish Premiership Damallsvenskan after 17 rounds.

[6] After leading Tottenham to their first-ever Women's FA Cup final and a sixth place finish in the league during his first season in charge, Vilahamn signed a new three-year contract with the club in July 2024.