Between 1992 and 2002, Kammerevert worked as a scientific adviser to a Member of the European Parliament, spending the first eighteen months in Brussels and the remainder in Düsseldorf. From 2002 to 2009 she worked as a consultant for the ARD public service broadcasting company.[2]
In the European Parliament, Kammerevert works as a member of the Committee on Culture and Education, which is also responsible for media, information, youth and sports policy. She served as her parliamentary group's coordinator on the committee from 2014 until 2017 and as its chairwoman from 2017 until 2019.[5] Alongside Sabine Verheyen, Kammerevert was selected in 2016 as co-rapporteurs on the audio-visual media services directive, which seeks to introduce levies and cultural quotas on services like Netflix.[6] She has also been serving as har parliamentary group’s main negotiator on the European Media Freedom Act.[7]
In addition to her committee assignments, Kammerevert is a substitute member of the Committee on Transport and Tourism and of the EU-Croatia Joint Parliamentary Committee.[8] She is also a member of the Transatlantic Legislators' Dialogue (TLD),[9] and the European Parliament Intergroup on the Digital Agenda.[10] On the national level, she is a member of the executive committee of the SPD's commission on media.