Schaller has worked for the Swiss Federal Department of Foreign Affairs at The Mission of Switzerland to the European Union in Brussels and has held roles in the financial and sports Industry, as well as in the NGO sector.
She works for the Adecco Group, where she heads the Group Public Affairs activities, dealing with regulatory and policy issues. She also handles the Adecco Group's engagement in Employers' Association at global and European scale, as well as international institutions.
She was the president of the World Employment Confederation's Europe chapter and in 2020 she was elected global president of the organisation. She has served as vice-chair of OECD BIAC ELSA Committee, as a member of the G20-B20 Future of Work and Education Task Force, a member of the B20 International Advocacy Caucus and a steering group member on the World Economic Forum Center for New Economy and Society and for the Global Apprenticeship Network.
In 2017, 2018, 2019, 2020 and 2021 Schaller was recognized as a "Staffing 100 Europe Influencer" and was included in the International 50 of the "Global Power 100 – Women in Staffing".
