Karen Laßmann studied business administration at the Technical University of Berlin (degree in 2002), has worked for the State of Berlin since 2006, initially as a trainee with the completion of the 2nd state examination in 2008. Afterwards Karen Laßmann held positions as a consultant at the Berlin Court of Auditors, Senate Department for Interior and Sport, initially in the area of administrative modernization, later as a consultant for the project „Feasibility study for the introduction of e-files in the state of Berlin“ From 2013-2020 Karen Laßmann was consultant in the department responsible for science, responsible for the student union Berlin, the University of Economics and Law of Berlin (HWR) and the topic of gender equality in research and teaching. Since April 2020 she is the personal assistant to the State Secretary for administration and infrastructure modernization in the Berlin Senate Chancellery. Since September 2020 Karen Laßmann has also been in charge of the Smart City model project in the Berlin Senate Chancellery. She is coordinating of the overall process.