In 1748, when he was twenty years old, Lambert took up a new position, this time as a tutor in the home of Count Peter von Salis in Chur. This town was in Graubünden which at that time was part of the Swiss Confederation.
Sa 1748, kapag siya ay dalawampu't years old, Lambert took up ng isang bagong posisyon, mga oras na ito bilang isang tyutor sa bahay ng Count Peter von Salis sa Chur. Bayang ito ay sa Graubünden na sa oras na iyon ay bahagi ng Swiss kompederasyon.