Reider was born in Wengelsdorf, Saxony-Anhalt in the newly established German Democratic Republic.
On 12 April, she was appointed to the cabinet of Lothar de Maizière as Minister for Trade and Tourism.
On 20 August she resigned from office when the SPD left the government coalition, her successor was Lothar Engel (CDU).
In 2001 Reider became mayor of Wengelsdorf, an unsalaried volunteer office, and runs a construction company with her husband.
This biography article about a member of the Social Democratic Party of Germany (SPD) is a stub.