Dr. Carsten Sieling studied economics in Hamburg at the University of Maryland and in Bremen. He completed this in 1988 and later pursued a part-time doctorate in economics with a dissertation on regional structural policy from 1993 to 1999.

After a career in his academic field, Dr. Sieling then pursued a successful career in politics, having held various roles and functions since 1995, including as a member of the SPD, a member of the Bremen State Parliament, and the Mayor and President of the Senate of the Free Hanseatic City of Bremen from 2015 to 2019. In 2019, Dr. Sieling became a Member of the Bremen State Parliament and continues in that role today.

In 2021, he became a member of the Managing Directorate of the Bremen Chamber of Employees for Federal Affairs, and in 2022 he became a partner and senior consultant at 42.0 Beratungs-GmbH Hannover.