Gast Groeber (*1960) grew up in Hollerich, Luxembourg, where he went to primary school. After graduating from high school in 1980, he studied primary education at the Institut Supérieur d'Études et de Recherches Pédagogiques in Walferdange, Luxembourg. From 1982, he taught at a number of primary schools in Luxembourg City. Since 2007, he has been head of the Centre Technolink in Luxembourg City, a division of school administration, which is in charge of equipping schools with computers, internet and new technologies.
Gast Groeber has been publishing since 2010. All of his six published books figured on the shortlists of the Lëtzebuerger Buchpräis (Luxembourgish Bookprize).
All Dag verstoppt en aneren is awarded the Lëtzebuerger Buchpräis 2014,
Zweemol schwaarze Kueder is awarded the Coup de coeur du Jury of the Lëtzbuerger Buchpräis 2019.
In 2018, Groeber's story Aktuelle Wetterwarnung : überwiegend dichter Nebel is awarded the MEP's Prize of the EUPL Writing Contest.