[2] She worked for the Agricultural Mutual Assistance Association (MSA) of Gironde, the Family Allowance Fund (CAF) of Bas-Rhin, and as territorial insertion official for the general council of Meurthe-et-Moselle,[3] before being appointed director of the Intercommunal Social Action Center (CIAS) of the community of communes of Latitude Nord Gironde in Saint-Yzan-de-Soudiac in 2012.

in Gironde's 11th constituency in the 2017 legislative elections on 11 May 2017, having been inspired to support Emmanuel Macron after reading his book Révolution.

Hammerer officially took her seat on 21 June with the inauguration of the 15th legislature, joining the La République En Marche group.

[1] In an interview published in Sud Ouest on 22 December 2017, Hammerer was questioned about omissions in her declaration of interests, the existence of which she did not deny.

Unprompted, she added that it was "terrible" that her husband could not buy a Porsche Cayenne, despite the couple's love for "beautiful cars", for fear of "reflections" and public criticism from "malicious people".