She spent the 2010 season playing in the United States for Women's Professional Soccer (WPS) club Atlanta Beat.

Since making her debut for the Switzerland women's national football team in June 2007, Bachmann has won over 50 caps.

At senior level Bachmann helped Switzerland qualify for the FIFA Women's World Cup for the first time in 2015.

Starting her career in FC Malters before moving to SC Luwin, she then rejected offers from both Germany and USA to sign for Swedish club Umeå IK in Damallsvenskan at the age of 16 in 2007.

In December 2016, London-based FA WSL club Chelsea announced that Bachmann had agreed to join them when the transfer window opened the following month.

[citation needed] On 3 July 2020, French club Paris Saint-Germain announced the signing of Bachmann on a two-year deal.

[11] On 3 April 2024, the Houston Dash announced that they had acquired Bachmann from Paris Saint-Germain for an undisclosed transfer fee.

"[20] During the World cup, Switzerland reached the round of 16, with Bachmann scoring three times, all in a 10–1 victory over hapless Ecuador.

[23] She was previously in a relationship with fellow Swiss national team footballer Alisha Lehmann, who moved to London to play for West Ham United.